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Nurhayati, Nurhayati, and Besty Maisura. "Pengaruh Intensitas Cahaya Terhadap Nyala Lampu dengan Menggunakan Sensor Cahaya Light Dependent Resistor." CIRCUIT: Jurnal Ilmiah Pendidikan Teknik Elektro 5, no. 2 (September 1, 2021): 103. http://dx.doi.org/10.22373/crc.v5i2.9719.
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The purpose of this research is to analyze the relationship between the intensity of light hitting the LDR to the resistance and the flame of the light. The research created an automatic lighting system, in which the lighting system was designed to turn on or off lights by light intensity. This research created automatic light controls using LDR light sensor. The LDR light sensor set is used as a switch that turns on or off a light automatically based on the recieved of intensity of light. By using the LDR components, it can design a series of light sensors for such items as outdoor light sensors, sleeping lights, garden lights, road lights that turn on at night and go out during the day automatically. The equipment used of the research were 2 test lamps, and done with 2 lighting sources, a natural source of lighting and an artificial source of lighting. From the research, it showed that the large light intensity affects the light flame by using LDR light sensor. It could be concluded that the greater of the light hitting intensity from the LDR surface was smaller than the value of the resistance and the flickering of the light. In contrast, the less light that affects the LDR, was the greater value of LDR resistance and lighter the light.
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Firmansyah, Rifqi, and Satria Bagaskara. "Penerapan Modul RF 433 dalam Pengukuran Intensitas Cahaya Menggunakan Sensor LDR Berbasis Arduino." INAJEEE : Indonesian Journal of Electrical and Eletronics Engineering 1, no. 1 (February 1, 2018): 1. http://dx.doi.org/10.26740/inajeee.v1n1.p1-6.
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Abstrak - Intensitas Cahaya merupakan salah satu faktor penting dalam Pembangkit listrik tenaga surya. Dalam rangka mengetahui intensitas dari cahaya dalam suatu area maka di rancanglah sebuah sistem pengukuran intensitas cahaya berbasis Arduino Uno R3. Menggunakan sensor LDR (Light Dependent Resistor) dan di kirim melalui RF 433. Penelitian ini menghasilkan sebuah instrument komunikasi jarak jauh menggunakan radio frekuensi 433 MHz sebagai pengirim dan penerima intensitas cahaya yang dikendalikan oleh Arduino UNO. Sensor intensitas cahaya memanfaatkan LDR (Light Dependent Resistor) yang mengubah jarak intensitas cahaya menjadi tegangan. Pada penelitian ini didapatkan jarak terjauh telemetri yang dapat dijangkau adalah 21 meter. Sedangkan dengan ditambahkan penghalang berupa dinding, didapatkan jarak terjauh telemetri yang dapat dijangkau adalah 12,4 meter.Kata Kunci: Radio Frekuensi 433,Arduino UNO, LDR (Light Dependent Resistor) , Telemetri.Abstract - Light intensity is one of the important factors in the solar power plant. In order to determine the intensity of light in an area then design a system of measurement of light intensity based on the Arduino Uno R3. Using the sensor LDR (Light Dependent Resistor) and sent via RF 433. The study produced a communication instrument remotely using radio frequency transmitter and receiver 433 as the light intensity is controlled by Arduino UNO. Light intensity sensor utilizing LDR (Light Dependent Resistor) that converts light intensity to a voltage range. The Result of this research that the furthest distance of telemetry that can be reached is 21 meters. By adding obstacle of walls, obtained furthest distance of telemetry that can be reached is 12.4 meters.Keywords: Telemetry, Temperature Sensor, Arduino, DHT11, Transmitter and Receiver, RF433MHz.
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Jefiza, Adlian, and Hafidz Novianas. "Optimasi Pesawat Atwood Menggunakan Sensor LDR (Light Dependent Resistor)." Journal of Applied Sciences, Electrical Engineering and Computer Technology 1, no. 2 (August 31, 2020): 19–25. http://dx.doi.org/10.30871/aseect.v1i2.2361.
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Pesawat Atwood merupakan alat yang sering digunakan untuk membuktikan hukum-hukum tentang gerak. Di Laboratorium Fisika Universitas Muhammadiyah Riau, pengukuran pada pesawat Atwood masih dilakukan secara manual dengan menggunakan stopwatch. Penggunaan stopwatch untuk menghitung waktu dianggap tidak optimal karena butuh ketelitian yang akurat yang terkadang mendapatkan hasil yang tidak presisi dan akurat. Pada penelitian ini dirancang sebuah alat yang dapat mengukur percepatan secara otomatis pada pesawat Atwood menggunakan sensor LDR. Alat ini digunakan untuk mengukur percepatan beban jatuh pada jarak 25, 35, dan 40 cm dengan massa beban tambahan 10, 15, dan 20 gram. Dari hasil pengukuran percepatan secara otomatis diperoleh persentase kesalahan rata-rata 3,97%. Hal ini menunjukan bahwa pengukuran percepatan pada pesawat Atwood secara otomatis menggunakan sensor LDR memiliki tingkat keberhasilan 96,03% dibandingkan dengan pengukuran percepatan yang dilakukan secara manual yang hanya memiliki tingkat keberhasilan 89,82%.
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Debata, Suchismita, Rupa Mantoliya, Veena Sahithi, and Venkata Ratnam Kolluru. "Implementation of IoT based smart street light intensity control system using IR and LDR sensors." International Journal of Engineering & Technology 7, no. 2.7 (March 18, 2018): 316. http://dx.doi.org/10.14419/ijet.v7i2.7.10605.
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This research article gives an idea about advancements in energy saving of street lights and to reduce the power consumption. The pro-gramming terminology for building up the product to the Arduino board at long last, the framework has been effectively outlined and executed. Mainly using two sensor IR and LDR sensor to implement intensity control of street light.IR sensor is use to detect the motion of the objects and LDR (light dependent resistor) used to recognize day-evening. When light falls on the LDR depending on resistance of light the intensity of light is decreased or increase. The street light is automatically ON in evening 6pm and OFF till morning. Through mobile app also we can operate the street light. Using Arduino board for implementing the intensity control of street light.
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Sumarna, Sumarna, Dyah Kurniawati Agustikasa, Agus Purwanto, Nur Kadarisman, Anggiyani Ratnaningtyas Eka Nugraheni, and Dina Dina. "Penyuluhan Alat Deteksi Kesadahan Dalam Air Berbasis Light Dependent Resistor Di Kelurahan Giritontro, Kecamatan Giritontro, Kabupaten Wonogiri." Jurnal Pengabdian Masyarakat MIPA dan Pendidikan MIPA 2, no. 2 (November 8, 2018): 95–99. http://dx.doi.org/10.21831/jpmmp.v2i2.21916.
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Beberapa daerah di Wonogiri memiliki tanah yang mengandung kapur, sementara itu sebagian masyarakat mengonsumsi air yang berasal dari dalam tanah. Pada kegiatan pengabdian kepada masyarakat tahun 2016 ditemukan permasalahan dalam masyarakat di kelurahan Wonogiri yaitu sulitnya mendeteksi adanya kapur dalam air yang mereka konsumsi. Sebagai akibatnya banyak masyarakat yang menderita penyakit dalam yang diakibatkan pengendapan kapur di dalam tubuh mereka seperti penyakit ginjal. Oleh karenanya, tim PPM Fakultas MIPA Universitas Negeri Yogyakarta membangun sistem pendeteksi adanya kapur dalam cairan berbasis Light Emitting Diode (LED) dan Light Dependent Resistor (LDR). LED digunakan untuk menyinari cairan dengan kadar kapur yang berbeda-beda, kemudian LDR akan mendeteksi cahaya LED yang melewati cairan tersebut. Besar kecilnya nilai luaran LDR akan bergantung kadar kapur dalam cairan. Masyarakat sangat antusias dan mulai menggunakan alat ini untuk mendeteksi adanya kapur di air yang mereka konsumsi. Kata kunci: Kesadahan, LDR, LED Workshop On Detector of Water Hardness Based On Light Dependet Resistor In Giritontro Village, Giritontro District, Wonogiri RegencyAbstract Some areas in Wonogiri contain hardness in its soil, while some people consume water that come from the soil. In community service activity in 2016, we found problems in the community in Giritontro, Wonogiri that is the difficulties to detect the hardness in the water that people consume. As a result, many people who suffer from internal diseases caused by the deposition of lime in their bodies such as kidney disease. Therefore, the PPM team of the Faculty of Mathematics and Natural Sciences of Yogyakarta State University built a hardness detection system in liquid based Light Emitting Diode (LED) and Light Dependent Resistor (LDR). LEDs are used to irradiate fluids with different lime levels, then LDR will detect the LED light passing through the liquid. The size of the LDR output value will depend on the lime content in the liquid. People are very enthusiastic and start using this tool to detect the presence of limestone in the water they consume. Keywords: Hardness, LDR, LED
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Bachri, Affan. "RANCANG BANGUN SISTEM PENJERNIHAN AIR OTOMATIS BERDASARKAN TURBIDITYMETER BERBASIS MIKROKONTROLLER." Jurnal Teknika 10, no. 2 (September 28, 2018): 1027. http://dx.doi.org/10.30736/teknika.v10i2.238.
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The turbidity sensor works by reading the water particles turbidity level captured by the Light Dependent Resistor (LDR) that has been emitted by the laser light. Therefore, the LDR resistance score changes and it makes the Nephelometric Turbidity Units (NTU) score also changes. The solenoid valve is controlled by the suitability of the readings of the desired turbidity meter sensor by the operator.
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Sari, Sari Ramadhani, Yuda Alferinanda, and Asnil Asnil. "Rancang Bangun Penerangan Jalan Raya Berbasis Arduino Uno." MSI Transaction on Education 1, no. 3 (July 30, 2020): 103–14. http://dx.doi.org/10.46574/mted.v1i3.23.
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Pemborosan dalam penggunaan energi listrik kini tampaknya telah menjadi kebiasaan. Seperti dalam pemakaian lampu jalan yang tetap menyala meski dalam keadaan yang tidak memerlukan penerangan menjadi salah satu kebiasaan tersebut. Dengan kebutuhan akan energi listrik yang terus meningkat, salah satu solusinya yaitu menerapkan sistem otomatis pada penerangan jalan dengan menggunakan sensor Light Dependent Resistor (LDR) dan sensor Passive Infrared Receiver (PIR) yang bertujuan agar pemakaian energi listrik dapat lebih efesien. Dalam jurnal ini penulis ingin membuat rancang bangun penerangan jalan raya berbasis arduino uno. Secara umum prinsip kerja dari alat ini adalah lampu penerangan jalan akan otomatis menyala dengan cahaya redup saat keadaan mulai gelap dengan menggunakan sensor LDR. Lampu juga akan otomatis menyala terang apabila sensor (LDR dan PIR) berhasil mendeteksi sehingga akan menampilkan informasi pada tampilan LCD. Dan jika sensor (LDR dan PIR) tidak mendeteksi apapun lampu jalan akan kembali meredup sehingga dapat menghemat pemakaian energi listrik. Hasil dari rancang bangun ini telah bekerja sesuai dengan yang direncanakan yaitu menghidupkan lampu secara otomatis menggunakan sensor Light Dependent Resistor (LDR) dan sensor Passive Infrared Receiver (PIR). Dan menampilkan informasi pada layar LCD.
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Amely Jumaat, Siti, Adam Afiq Azlan Tan, Mohd Noor Abdullah, Nur Hanis Radzi, Rohaiza Hamdan, Suriana Salimin, and Muhammad Nafis Bin Ismail. "Horizontal Single Axis Solar Tracker Using Arduino Approach." Indonesian Journal of Electrical Engineering and Computer Science 12, no. 2 (November 1, 2018): 489. http://dx.doi.org/10.11591/ijeecs.v12.i2.pp489-496.
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<span lang="EN-MY">This project discusses on the development of horizontal single axis solar tracker using Arduino UNO which is cheaper, less complex and can still achieved the required efficiency. For the development of horizontal single axis solar tracking system, five light dependent resistors (LDR) has been used for sunlight detection and to capture the maximum light intensity. A servo motor is used to rotate the solar panel to the maximum light source sensing by the light dependent resistor (LDR) in order to increase the efficiency of the solar panel and generate the maximum energy. The efficiency of the system has been tested and compared with the static solar panel on several time intervals. A small prototype of horizontal single axis solar tracking system will be constructed to implement the design methodology presented here. As a result of solar tracking system, solar panel will generate more power, voltage, current value and higher efficiency. </span>
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Fitrianti, Liana Dwi. "PENILAIAN CACAT LUBANG KAIN BERBASIS LIGHT DEPENDENT RESISTOR PADA MIKROKONTROLER ARDUINO UNO." Texere 18, no. 1 (January 20, 2020): 46–60. http://dx.doi.org/10.53298/texere.v18i1.72.
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Kain merupakan komponen utama dalam pembuatan garmen. Kualitas produk garmen dapat dipengaruhi oleh kualitas kain, maka sebelum melakukan proses produksi garmen perlu dilakukan kegiatan inspeksi kain untuk memeriksa keberadaan cacat pada kain. Pada umumnya inspeksi kain di industri garmen menggunakan sebuah mesin inspeksi yang dioperasikan oleh seorang operator. Akan tetapi operator sebagai seorang manusia akan tetap bisa melakukan kelalaian dalam bekerja. Misalnya terdapat cacat pada permukaan kain yang terlewat untuk diperiksa.Untuk mengurangi jumlah cacat lubang yang terlewat pada kain maka dilakukan penelitian mengenai studi pendeteksi cacat kain menggunakan Hardware berupa Arduino Uno dengan sensor cahaya (LDR) yang dilakukan pada mesin inspeksi kain sehingga dapat mendeteksi cacat lubang pada kain. Arduino adalah pengendali mikro single-board yang bersifat open-source, dirancang untuk memudahkan penggunaan elektronik dalam berbagai bidang. Hardware dalam arduino memiliki prosesor Atmel AVR dan menggunakan software dan bahasa sendiri. Sensor cahaya LDR ini merupakan resistor yang memiliki karakteristik peka terhadap cahaya. LDR akan dapat mendeteksi cahaya yang melewati lubang kain pada jarak tertentu. Cahaya yang melewati lubang dideteksi sebagai perubahan intensitas cahaya sehingga cacat lubang pada kain dapat terdeteksi berdasarkan ukurannya.
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Echeweozo, E. O., N. O. Okoro, and P. Ngele. "Design, construction and calibration of automatic street light controller using Light Dependent Resistor (LDR)." Journal of Applied Sciences and Environmental Management 23, no. 3 (April 10, 2019): 457. http://dx.doi.org/10.4314/jasem.v23i3.14.
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Marzuki, Imam. "Perancangan dan Pembuatan Sistem Penyalaan Lampu Otomatis Dalam Ruangan Berbasis Arduino Menggunakan Sensor Gerak dan Sensor Cahaya." Jurnal Intake : Jurnal Penelitian Ilmu Teknik dan Terapan 10, no. 1 (April 22, 2019): 9–16. http://dx.doi.org/10.32492/jintake.v10i1.790.
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The manual use of household lights poses a problem in the efficiency of electricity use. Humans with various activities often do not pay attention to the condition of the lights in the room whether it lights up or not. This is certainly a waste of electricity when they leave the room without turning off the switch. Therefore, researchers propose an automation system that can save electricity from lighting. In designing the system there are two sensors used, namely Passive Infra-Red (PIR) sensor and Light Dependent Resistor (LDR) sensor. PIR functions to detect the presence of human movements (objects) in the sensor work area, while the LDR sensor functions to detect the intensity of light around the room. The results of the system testing are that the PIR sensor works well around ± 2 minutes after the device is activated and the LDR Sensor will continuously measure the value of light intensity then turn on and off the light according to the programmed command.
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Choifin, Mochamad, and Wiji Lestariningsih. "SISTEM KENDALI OTOMATIS PADA PEMERAH SUSU SAPI DENGAN MENGGUNAKAN SENSOR LIGHT DEPENDENT RESISTOR (LDR)." Teknika: Engineering and Sains Journal 3, no. 1 (June 30, 2019): 45. http://dx.doi.org/10.51804/tesj.v3i1.382.45-50.
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Mesin pemerah Susu Sapi merupakan salah satu cara untuk meningkatkan produktifitas pemerahaan yang pada saat ini. Sistem pemerahan susu yang telah ada bekerja secara mekanis dan tidak bisa mendeteksi volume susu yang ada pada kantung sapi, sehingga banyak peternak yang tidak bisa memaksimalkan volume susu sapi yang tersisa saat pemerahan. Adapun cara memaksimalkan produksi susu sapi peternak menunggu masa pulsasi selesai, hal ini juga akan membuat sapi merasa trauma. Dalam penelitian ini akan dilakukan Perancangan sistem pemerah secara otomatis menggunakan sensor aliran dengan mikrokontroller ATMEGA 8, sehingga dapat mengendalikan proses pemerahan serta dapat memaksimalkan volume susu yang dihasilkan saat proses pemerahan. Metode otomatis yang digunakan pada alat ini menggunakan sensor aliran berupa dengan sensor LDR Light Dependent Resistor yang berupa rangkaian guna mendeteksi aliran susu sapi tersebut guna mengetahui besar aliran susu. Sementara hasil pengukuran data pengujian pada kondisi maksimum ketika sensor LDR terang 1 unit didapatkan kapasitas susu sapi sebesar 7,871 ml/detik. Semakin bertambahnya sensor LDR yang terang akan mengalami penurunan kapasitas pula. Ketika kondisi susu sapi kritis atau minimum kapasitas yang dihasilkan sebesar 0,461 ml/detik pada saat sensor LDR terang 6 unit.
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Widianto, Mochammad Haldi. "Pengaplikasian Sensor Hujan dan LDR untuk Lampu Mobil Otomatis Berbasis Arduino Uno." RESISTOR (elektRonika kEndali telekomunikaSI tenaga liSTrik kOmputeR) 1, no. 2 (November 1, 2018): 79. http://dx.doi.org/10.24853/resistor.1.2.79-84.
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Pesatnya perkembangan teknologi mendorong sektor industri untuk lebih kreatif dalam membuat sebuah alat sederhana yang dapat membantu masyarakat dalam kehidupan sehari-hari, salah satunya pada lampu kendaraan. Dalam rangka mengembangkan teknologi pada lampu kendaraan untuk mengurangi peluang terjadinya kecelakaan, dilakukan pengaplikasian sensor hujan dan sensor cahaya pada lampu mobil secara otomatis berbasis Arduino sehingga mempermudah pemakaian lampu pada kendaraan, terutama untuk kemajuan industri mobil. Sensor LDR (Light Dependent Resistor) dan sensor hujan digunakan untuk memberikan informasi kepada Arduino sehingga lampu pada bagian depan dan belakang mobil akan menyala secara otomatis.
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Dewisita, Nurprastia Amanda, Nuryanto Nuryanto, and Auliya Burhanuddin. "PROTOTYPE SISTEM PENGELOLAAN PARKIR DENGAN SENSOR LDR (LIGHT DEPENDENT RESISTOR) UNTUK OPTIMALISASI LAYANAN TEMPAT PARKIR MOBIL." Jurnal Komtika 2, no. 2 (February 26, 2019): 124–28. http://dx.doi.org/10.31603/komtika.v2i2.2599.
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Sistem pengelolaan parkir di berbagai pusat perbelanjaan sudah banyak digunakan. Namun pengendara belum mengetahui dimana lokasi parkir yang kosong. Tujuan dari penelitian ini membuat model sistem parkir yang mempermudah pengendara menemukan lokasi parkir yang kosong. Penelitian ini mempermudah pengendara mencari lokasi parkir dengan melihat display. Penelitian ini menggunakan Sensor Light Dependent Resistor (LDR) guna mengetahui posisi parkir yang belum terisi dan yang telah terisi. Prototype yang dirancang berhasil memberikan informasi lokasi parkir yang kosong dengan melihat LCD. Cara kerja Sensor LDR yaitu sensor akan berkurang nilai resistansinya apabila badan sensor terkena cahaya, dan akan bertambah resistansinya apabila badan sensor kurang terkena cahaya atau gelap. Saat sensor LDR berkurang nilai resistansinya pada layar LCD akan menunjukkan warna hijau dan apabila bertambah nilai resistansinya maka pada layar LCD akan menunjukkan warna merah. Simulasi sistem parkir dengan menggunakan sensor LDR sehingga apabila lahan parkir terisi oleh mobil, cahaya yang menuju kesensor LDR akan terhalang, kemudian akan mengirimkan sinyal digital kepada server Arduino Uno R3 dan diteruskan menuju aplikasi untuk merubah warna yang ada di LCD menjadi merah serta sistem berhasil menghitung tarif parkir perjamnya sesuai dengan waktu masuk sampai waktu keluar.
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Sudibyo, Pandu, Yanu Shalahuddin, and Mochtar Yahya. "Single Axis Tracking PV Panel Using Fuzzy Logic Control." JTECS : Jurnal Sistem Telekomunikasi Elektronika Sistem Kontrol Power Sistem dan Komputer 1, no. 1 (January 1, 2021): 1. http://dx.doi.org/10.32503/jtecs.v1i1.646.
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Abstrak – Panel PV(Photovoltaic) merupakan teknologi yang mengubah energi cahaya matahari menjadi energi listrik. Maka dari itu untuk mendapatkan iradiansi maksinal perlu sistem solar tracker sebagai cara untuk optimalisasi penyerapan cahaya matahari. Pada penelitian ini membahas pembuatan model simulink solar tracker menggunakan kontroler fuzzy logic. Arah sinar matahari disensor mengguanakan 2 buah sensor LDR (Light Dependent Resistor) yang selanjutnya menjadi input logika fuzy. Sistem terdiri atas 4 komponen utama yaitu PV Modul ,Mikrokontroler, motor servo, sensor LDR(Light Dependent Resistor) yang selanjutnya menjadi input logika fuzy. Output logika fuzy berupa nilai yang kemudian diumpan ke servo untuk gerakan panel secara Single Axis. Aplikasi Matlab Simulink sebagai compiler dan pembuat permodelan sistem yang nantinya akan diupload ke mikrokontroler. Arah putaran motor servo ditentukan dengan menggunakan kendali logika fuzzy. Hasil pengujian membuktikan rata-rata tegangan panel PV lebih tinggi daripada panel tanpa kendali, dengan nilai rata-rata sebesar 14,35V.
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WANG, XIAOYUAN, GUANGYI WANG, and XINGYUAN WANG. "DYNAMIC CHARACTER ANALYSIS OF A LDR, MEMRISTOR-BASED CHAOTIC SYSTEM." Journal of Circuits, Systems and Computers 23, no. 06 (May 14, 2014): 1450085. http://dx.doi.org/10.1142/s0218126614500856.
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Based on the achievements of realization of the light dependent resistor (LDR) memristor (MR) analog model, a chaotic system has been proposed in this paper. The construction of such a nonlinear system is firstly shown in this paper, by dissipative characteristic analysis, equilibrium point and stability analysis, the strange attractor is possibly existing at each equilibrium point is confirmed. Also the dynamic characters are discussed, which indicates the nonlinear circuit we built based on LDR MR is a chaotic system.
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Nusyirwan, Deny, Nadhifah Hasi Daiichi, and Prasetya Perwira Putra Perdana. "TIRAI OTOMATIS BERBASISKAN ARDUINO UNTUK MENINGKATKAN KONSENTRASI BELAJAR DAN MINAT SISWA TERHADAP TEKNOLOGI PADA SDN 003 BINAAN TANJUNGPINANG BARAT." Jurnal Terapan Abdimas 5, no. 1 (January 30, 2020): 94. http://dx.doi.org/10.25273/jta.v5i1.4858.
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<p><strong><em>Abstract.</em></strong> <em>Curtains are a means to regulate air circulation in our homes, control the sunlight that enters the room, maintain privacy in the room, and also as a complement to the interior of the house. As for in school, curtains have the main function as a window cover to avoid excessive lighting so that it can cause hot air so that it disrupts the smooth learning process of students. Therefore, one of the proposed technological innovations is Automatic Curtain based on the LDR sensor (Light Dependent Resistor). Automatic curtain based on LDR sensor (Light Dependent Resistor) is a system design where the LDR sensor when getting light will then pass information to the Arduino microcontroller, then Arduino will give an order to the servo to work closing the curtain. Automatic Curtain based on LDR sensor consists of several main devices, namely Arduino Uno, Micro Servo, Resistor, LED Lights, and several Male to Male Jumper Cables. The research process applies an engineering design process with a double diamond model approach introduced by the British Design Council, which explains the need for user-based design thinking to get an innovation that is the right solution at school. The process begins with social ethnographic research, direct observation in schools to gather information, followed by an outpouring of ideas on problems that exist in schools, determining the main problems in schools, the process of outlining the ideas of solutions given to the main problems and discussions to determine the main solutions. In the next stage is the making of simple prototypes and usability testing to get an evaluation of the solutions given</em></p><p><strong>Abstrak.</strong> Tirai merupakan sarana untuk mengatur sirkulasi udara di rumah kita, pengontrol cahaya matahari yang masuk ke dalam ruangan, menjaga privasi yang berada di dalam ruangan, dan juga sebagai pelengkap interior rumah. Adapun di sekolah, tirai memiliki fungsi utama sebagai penutup jendela untuk menghindari pencahayaan yang berlebihan sehingga dapat menimbulkan udara panas sehingga mengganggu kelancaran proses belajar siswa. Oleh karena itu, salah satu inovasi teknologi yang diusulkan adalah Tirai Otomatis berbasis sensor LDR (<em>Light Dependent Resistor</em>). Tirai Otomatis berbasis sensor adalah suatu perancangan sistem dimana sensor LDR apabila mendapat cahaya maka akan meneruskan informasi ke mikrokontroler Arduino, selanjuntya Arduino akan memberikan perintah kepada servo untuk bekerja menutup tirai. Tirai Otomatis berbasis sensor LDR terdiri dari beberapa perangkat utama yaitu Arduino Uno, Micro Servo, Resistor, Lampu LED, dan beberapa Kabel <em>Jumper Male to Male</em>. Proses penelitian menerapkan sebuah proses desain rekayasa dengan pendekatan model <em>double diamond</em> yang telah diperkenalkan oleh <em>British Design Council</em>, dimana menjelaskan akan perlunya design thinking berbasis kepada pengguna untuk mendapatkan sebuah inovasi yang merupakan solusi yang tepat di sekolah. Proses dimulai dengan penelitian secara sosial etnografi, observasi secara langsung di sekolah untuk mengumpulkan informasi, dilanjutkan curahan gagasan terhadap permasalahan yang ada di sekolah, menentukan permasalahan utama di sekolah, proses curahan gagasan solusi yang di berikan terhadap permasalahan utama dan diskusi untuk menentukan solusi utama. Pada tahapan selanjutnya adalah pembuatan purwarupa sederhana dan pengujian kegunaan untuk mendapatkan evaluasi terhadap solusi yang diberikan.</p>
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Manik, Simson, Abdul Muis Muslimin, and Aries A. Subgan. "PERANCANGAN ALAT UKUR INTENSITAS CAHAYA BERBASIS ARDUINO LEONARDO MENGGUNAKAN SENSOR LDR (Light Dependent Resistor)." Jurnal Natural 16, no. 1 (April 1, 2020): 1–13. http://dx.doi.org/10.30862/jn.v16i1.46.
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Lux meter is a device used to measure the intensity of light in an area. The purpose of this thesis is to design a light intensity measuring device using LDR components as a light sensor, comparing light intensity measuring devices made using LDR sensors and Arduino Leonardo based microcontrollers with standard tools. The data used in this study are primary data. The data obtained is then processed using MS. Excel. The type of light bulbs used are Philips CFL (Philips Essential) lamps, each lamp having a power of 5, 8, 11, 14, 18, 23, 27, 32, 35, and 50 watts with a luxmeter vertical distance of 1, 2 and 3 meters from the lamp.
From the results of testing the tools and processing of comparative data between the Lux Meter Standard and the designed Lux Meter obtained as follows: the vertical distance of the tool by 1 meter from the lamp produces an average error difference of 12,571 lx and the percentage of average errors the average is 8.77%, while for the vertical distance of the tool is 2 meters from the lamp the average error difference value is 2,358 lx and the average error percentage is 7.98%, and for the vertical tool distance is 3 meters from the lamp the difference in error value is an average of 0.92 lx and an average error percentage of 5.85%.
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Rakhmadi, Frida Agung, and Hikmahtuz Zahroh. "Detection System Design for Cu Contaminated Water Based on Red Diode Laser and LDR (Light Dependent Resistor) Sensor." Proceeding International Conference on Science and Engineering 1 (October 31, 2017): 99–101. http://dx.doi.org/10.14421/icse.v1.289.
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The research on making detection system of Cu contaminated water based on red diode laser and LDR sensor has been done. The purpose of this research was to know the characteristic of LDR sensor, to make the detection system of Cu contaminated water, and to test the detection system of Cu contaminated water. This research was conducted in five phases: characterization of LDR sensor, making data acquisition system, processing and analyzing of train sample data, making detection system, and implementation of detection system on test sample. The result of LDR sensor characterization in this research showed transfer function V = 0,004I + 2,1861 with relation of input-output relation which was very strong (r = 0,99267); sensitivity was 0,004 volt/lux; repeatability was 99,015%, and saturation for the light intensity ˃ 500 lux. Meanwhile, the succes rate of detection implementation on Cu contaminated water was 97,5%.
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Miranda-Vega, Jesús E., Moisés Rivas-López, Wendy Flores-Fuentes, Oleg Sergiyenko, Lars Lindner, and Julio C. Rodríguez-Quiñonez. "Implementación digital de filtros FIR para la minimización del ruido óptico y optoelectrónico de un sistema de barrido óptico." Revista Iberoamericana de Automática e Informática industrial 16, no. 3 (June 12, 2019): 344. http://dx.doi.org/10.4995/riai.2019.10210.
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<p>Existen distintos dispositivos capaces de discriminar el ruido óptico y optoelectrónico, sin embargo, el costo de su implementación y mantenimiento resulta costoso. Este trabajo examina la posibilidad de integrar digitalmente filtros de respuesta finita al impulso (en inglés, FIR; Finite Impulse Response) al transductor de un sistema OSS para obtener un mejor rendimiento en un ambiente real de operación. En este trabajo se propone la evaluación de la implementación de distintos filtros FIR en diferentes transductores fotosensores como lo son el resistor dependiente de luz (en inglés, LDR; Light-Dependent Resistor) y el diodo emisor de luz (en inglés, LED; Light-Emitting Diode).</p>
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Kassim, Murizah, Ezril Hisham Mat Saad, and Rosminah Mustakim. "Analysis of Drinks Base Concentration Using Microprocessor Based Sensor." Advanced Materials Research 383-390 (November 2011): 5369–74. http://dx.doi.org/10.4028/www.scientific.net/amr.383-390.5369.
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This paper presents an analysis of liquid drinks concentration using microprocessor based sensor. A prototype model based on hardware and software is used to run this analysis. The model then is tested and a few type of branded sold drinks base is analyzed on its concentration. The hardware comprises of a portable device that has been design to detect the differences between selected liquid drinks concentration. Those tested experimental drinks are Sunquick Blackcurrant, Sunquick Orange, Greenhill Rose, Greenhill Mango and Dutch Lady Full cream milk. A light dependant resistor (LDR) is used as the sensor to measure the light density through the liquid. The method has obtained the input voltage from the LDR circuit and display the concentration measurement on the liquid crystal display (LCD). Successful output has been gathered from the designing circuit. A printed circuit board (PCB) layout and programming using Basic language is developed and design in the identified hardware and software. This research has produced a data collections and statistical analysis on the identified drinks concentration. Comparison has been made and mathematical concept on the design system has been carried out.
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Román-Raya, Juan, Isidoro Ruiz-García, Pablo Escobedo, Alberto J. Palma, Damián Guirado, and Miguel A. Carvajal. "Light-Dependent Resistors as Dosimetric Sensors in Radiotherapy." Sensors 20, no. 6 (March 11, 2020): 1568. http://dx.doi.org/10.3390/s20061568.
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Safe quality control of radiotherapy treatments lies in reliable dosimetric sensors. Currently, ionization chambers and solid-state diodes along with electrometers as readout systems are accomplishing this task. In this work, we present a well-known and low-cost semiconductor sensor, the light-dependent resistor (LDR), as an alternative to the existing sensing devices for dosimetry. To demonstrate this, a complete characterization of the response to radiation of commercial LDRs has been conducted in terms of sensitivity, reproducibility and thermal correction under different bias voltages. Irradiation sessions have been applied under the common conditions in radiotherapy treatments using a hospital linear accelerator. Moreover, the same electrometer used for the ionization chamber has also been successfully used for LDRs. In comparison with the sensitivity achieved for the ionization chamber (0.2 nC/cGy at 400 V bias voltage), higher sensitivities have been measured for the proposed LDRs, ranging from 0.24 to 1.04 nC/cGy at bias voltages from 30 to 150 V, with a reproducibility uncertainty among samples of around 10%. In addition, LDR temperature dependence has been properly modeled using the simple thermistor model so that an easy thermal drift correction of dose measurements can be applied. Therefore, experimental results show that LDRs can be a reliable alternative to dosimetric sensors with the advantages of low size, affordable cost and the fact that it could be adopted with minimal changes in routine dosimetry quality control since the same readout system is fully compatible.
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Sirait, Calvin Yobel, and Hendi Matalata. "PERANCANGAN BOOST CONVERTER DENGAN LDR SEBAGAI PENGENDALI SINYAL PWM UNTUK MENAIKAN TEGANGAN PANEL SURYA." Journal of Electrical Power Control and Automation (JEPCA) 1, no. 2 (December 31, 2018): 39. http://dx.doi.org/10.33087/jepca.v1i2.9.
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Boost Converter adalah perangkat catu daya listrik untuk menaikan tegangan DC (Direct Current), teknologi Boost Converter ini berdasarkan pada mode pensaklaran menggunakan pembangkitan sinyal PWM (Pulse Width Modulation )yang diperuntukan kepada komponen saklar daya pada rangkaian Boost Converter, sinyal PWM ini mempunyai duty cycle untuk memberikan kendali pada kenaikan keluaran tegangan. Pada penelitian ini pengaturan duty cycle menggunakan LDR (Light Dependent Resistor), yang mana pada fungsinya LDR akan mempunyai nilai hambatan yang besar dalam keadaan gelap dan mempunyai nilai hambatan yang kecil dalam keadaan terang. Hasil pengujian yang dilakukan LDR mampu memberikan perubahan duty cycle terhadap perubahan intensitas matahari sehingga perancangan Boost Converter pada penelitian ini mampu menaikan besar tegangan keluaran pada panel surya
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Syahbana, Muhammad Khoir, Azwin Harfansah, and Ikhwanuddin Ikhwanuddin. "ALAT DETEKSI DINI KEMATANGAN OPTIMUM BUAH MANGGA (Mangifera indica) SECARA NON-DESTRUCTIVE BERBASIS TEKNOLOGI LDR (RESEP DEPENDEN CAHAYA)." Indonesian Journal of Fundamental Sciences 4, no. 1 (May 1, 2018): 1. http://dx.doi.org/10.26858/ijfs.v4i1.6009.
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Technology which will be develoved on this study is aimed to detect the maturity of the optimum mango to reduce the risk of mangoes that decay before the distribution is by utilizing LDR-based color sensor technology (Light Dependent Resistor). Where the principle works that is when given light on the surface of the skin of mango fruit then the light will be reproduced captured by the sensor and pass through the filter then if the same color then the filter will absorb the light. The results obtained that mango detected maturity level using LDR more efficient and accurate where mango has optimum maturity level has an output voltage interval of 150.68 mV - 155.45 mV. Where this technology is expected to increase mango productivity in Indonesia so as to increase exports to other countries that can support the world of agriculture.
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Rahmadiansyah, Arief, Ele Orlanda, Merti Wijaya, Hanif Wigung Nugroho, and Rifki Firmansyah. "Perancangan Sistem Telemetri Untuk Mengukur Intensitas Cahaya Berbasis Sensor Light Dependent Resistor Dan Arduino Uno." Journal of Electrical and Electronic Engineering-UMSIDA 1, no. 1 (May 1, 2017): 15. http://dx.doi.org/10.21070/jeee-u.v1i1.760.
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Abstract Light is a propagation of electromagnetic waves that spread all directions that play an important role in everyday life because it is an absolute part of life and without the light of life on earth can not develop. The amount of light illuminance is necessary to know because basically humans require adequate lighting. The instrument for measuring light illuminance is a luxmeter or light meter. However, this gauge is difficult to obtain and the price of the tool is expensive so that it can only be found in certain school laboratories or colleges. While telemetry is the process of measuring the parameters of an object (objects, space, natural conditions) that the measurement results are transmitted to other places via data transmission without or using a cable (wireless). The purpose of this study is to measure, to know the conditions of light intensity. This research uses experimental model of light intensity measurement using independent measuring instrument with combination of LDR and Arduino uno consisting of transmitter and receiver. In the transmitter there are LDR, Arduino Uno, and RF Module Board 433 MHz components, while the receiver consists of Arduino Uno, laptop, and RF Module Board 433 MHz. In this design is also done a variety of testing tools using distance variables. Overall this tool is working well. The system has successfully delivered telemetry measurement results with a range of conditions without a wall barrier with a maximum distance of <28 m. And conditions there are obstacles diding with a maximum distance <13.2.
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Almeida, Thiago Corrêa, Eugênio De Carvalho Dias, and Amanda Da Silva Julião. "Um laboratório portátil de baixo custo: medição de g utilizando um pêndulo e a placa Raspberry Pi." Caderno Brasileiro de Ensino de Física 34, no. 2 (August 9, 2017): 590. http://dx.doi.org/10.5007/2175-7941.2017v34n2p590.
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Neste artigo apresentaremos a placa Raspberry Pi como solução de baixo custo para um laboratório portátil com múltiplas aplicações, podendo ser utilizado tanto no ensino básico quanto no ensino superior. Utilizaremos a placa com um LDR (Light Dependent Resistor) para medir o período de um pêndulo e obter a aceleração da gravidade. Apesar de simples, o experimento possui excelente acordo com valor encontrado na literatura, diferindo em apenas 0,07%.
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Rahmadi, Aji, Adi Ahmad Dimisa, Asep Kurniawan, and Frida Agung Rakhmadi. "ThIAS (Thief Indication Alarm System) Security Device of Livestock in Animal Cages Based on Light Dependent Resistor (LDR) and Microcontroller Arduino." Proceeding International Conference on Science and Engineering 2 (March 1, 2019): 9–11. http://dx.doi.org/10.14421/icse.v2.45.
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Research on Thias (Thief Alarm Indication System) safety device of livestock in animal cages based on the Light Dependent Resistor (LDR) and the Arduino microcontroller has been done. This research aims to design and characterize an alarm system or test the success rate of the alarm system. This study can be used as an alarm when livestock theft is occurring. The method used in this research is divided into three stages, design, manufacture and testing. The working principle of this alarm system, when the laser beams hitch the LDR, then the high value of the resulting LDR then produces an alarm notification in the form of sound. The hitch here is a thief entering or exiting the cage. To control the performance of the alarm system use the Arduino microcontroller. Obtained results from this research is a prototype alarm system. From testing, this alarm system obtained a success rate of 100%. The advantages of this alarm system are cheap and simple.
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Ahmadi, Ahmadi. "SIMULASI KEAMANAN PARKIR PRIBADI BERBASIS MIKROKONTROLER dan ANDROID." Technologia: Jurnal Ilmiah 9, no. 4 (October 1, 2018): 217. http://dx.doi.org/10.31602/tji.v9i4.1545.
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Monitoring suatu tempat parkir kendaraan umum bahkan kendaraan pribadi memerlukan perencanaan dan simulasi dalam proses pembuatan sistem ditempat parkir disebut baik digunakan sendiri bahkan parkir umum,bahkan memiliki alur dari aturan proses parkir kendaraan sampai posisi letak kendaraan itu sendiri bahkan bisa dimonitoring dari jarak jauh. Monitoring kendaraan pribadi adalah hal yang wajar dilakukan oleh prusahaan bahkan pemilik kendaraan sendiri, diperlukan suatu simulasi keamanan parkir berbasis android beserta proses parkir kendaraan dengan dipandu oleh sistem parkir itu sendiri. Dipenelitian ini Dibuatlah simulasi keamanan parkir berbasis android dan menggunakan inputan sensor ultrasonic dan LDR(Light Dependent Resistor), Sensor ultrasonic digunakan untuk inputan sistem yang digunakan sebagai inputan lampu pemandu dan buzzer pada sistem nantinya, sedang sensor light dependent resistor digunakan untuk indicator keberaan kendaraan ditempat parkir dan status kendaraan tersebut dikirim ke interface android sebagai penanda bahwa parkiran sedang kosong atau sudah diisi. Keyword : Parkir Berbasis Adroid, Sensor Ultrasonik HC-SR04, sistem keamanan
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Lidiawati, Wida, Lia Muliani Pratomo, Waslaluddin, and Jojo Hidayat. "Otomatisasi Lampu, Tirai, dan Kipas Angin Menggunakan Mikrokontroler untuk Menghemat Energi Listrik." Jurnal Elektronika dan Telekomunikasi 13, no. 2 (June 29, 2016): 66. http://dx.doi.org/10.14203/jet.v13.66-72.
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Kebutuhan energi listrik saat ini terus mengalami peningkatan. Hal ini disebabkan karena jumlah penduduk yang semakin meningkat dan pertumbuhan ekonomi. Saat ini, untuk memenuhi kebutuhan energi listrik, eksploitasi terhadap sumber-sumber energi berbasis fosil terus dilakukan padahal ketersediaan di alam semakin berkurang. Hal ini masih diperparah oleh pemborosan energi, baik yang dilakukan pada tingkat rumah tangga, perkantoran, maupun industri. Oleh karena itu, pada penelitian ini, dilakukan otomatisasi pada perangkat listrik, dalam hal ini, lampu, tirai, dan kipas angin untuk mengoptimalkan pemanfaatan energi listrik. Lampu yang digunakan berupa Light Emitting Diode (LED) dan pergerakan tirai serta kipas diatur oleh motor DC. Pada sistem otomatisasi dibuat rangkaian sensor dengan menggunakan Light Dependent Resistor (LDR). Tegangan keluaran dari LDR akan diolah oleh mikrokontroler untuk mengaktifkan aktuator, dalam hal ini LED dan motor DC. Dengan sistem otomatisasi, energi yang digunakan dapat dihemat 50%.
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Gopal, Banala Krishna. "Light Monitoring System using Z-Score Analysis." International Journal for Research in Applied Science and Engineering Technology 9, no. VI (June 10, 2021): 196–204. http://dx.doi.org/10.22214/ijraset.2021.34963.
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In today’s modern world where everything is being automated and security is a growing concern, we made an automated module to live-monitor the anomalies in any provided space at all times to ensure security in our personal space. By implementing our project, we can monitor anything important which would be out of our reach at the moment with a live alert system through which we can identify any anomalies. In our proposed system we integrated Machine Learning to work with an IoT system by using Bolt Wi-Fi module which also uses an LDR sensor to detect the light intensity, here LDR is used specifically to better understand the Z-Score analysis. We are using ML to do an analysis known as Z-Score, which processes a math equation to detect anomalies. This analysis is done to predict a frame of upper and lower boundaries for the light intensity. Eventually, when the LDR sensor value i.e., light intensity goes out of range in a room, it generates Real-Time alerts in the form of an SMS alert which will be directed to the user's mobile phone through Twilio. This alert system is an advanced way to increase the work efficiency of any live monitoring system as the ML is always working to increase accuracy. In our project, this system specifically uses Light Dependent Resistor to detect changes in light intensities, but this can be implemented for any sensor to detect.
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Sharma, Karan, Kunal Mandil, and Nancy Gupta. "POWER SAVER STREET LIGHTING USING MICROCONTROLLER USING ATmega16." International Journal of Engineering Technologies and Management Research 5, no. 2 (April 30, 2020): 107–13. http://dx.doi.org/10.29121/ijetmr.v5.i2.2018.630.
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Street lights remain illuminated for whole nights and most of them used for lighting-up of highways are high energy consumption lamps. Preservation and sustainable use of energy and resources is an important factor of planning and development these days as Natural resources are depleting day by day, which pose a risk of scarcity and non-availability of the same for our presidenting generations. There is an acute need for devising a well thought out plan to prevent wastage of electricity. Perhaps, the government should think of implementing automatic street light control systems using LDR (light dependent resistor). This review paper illustrates the street light illumination system automated by the movement (frequency) of vehicles on that particular street. The crux of this paper is to emancipate the necessity and usage of street light control systems which combines various technologies is Timers, Photodiodes, Light Emitting Diodes (LED), and IR Sensors.
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Abdullah, Aziera, Siti Hajar Yusoff, Syasya Azra Zaini, Nur Shahida Midi, and Sarah Yasmin Mohamad. "Energy efficient smart street light for smart city using sensors and controller." Bulletin of Electrical Engineering and Informatics 8, no. 2 (June 1, 2019): 558–68. http://dx.doi.org/10.11591/eei.v8i2.1527.
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Smart street light is an intelligent control of street lights to optimize the problem of power consumption of the street, late in night. Conventional street lights are being replaced by Light Emitting Diode (LED) street lighting system, which reduces the power consumption. The focus of this project is to design a system of street lights controller to provide a reduction in power consumption. The prototype was designed by using Light Dependent Resistor (LDR), Infrared sensor (IR), battery and LED. The brightness of the lamps is being controlled in this project to reduce the power consumption. The dimming of the lamps depends on the speed of object motion detected such as pedestrians, cyclists and cars. The higher speed of moving object, the greater the level of intensity. For this idea, the innovation of street lights is not quite the same as conventional street lights that are controlled by timer switch or light sensor which automatically turns light on during sunset and off during sunrise. According to the study, motion detection devices may help to save up to 40% of energy per month.
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Dewi, Andriana Kusuma, Mokhammad Sholihul Hadi, and Syaiful Anwar. "Sistem Atap Rumah Otomatis pada Smarthome dengan Menggunakan Arduino." Jurnal Teknologi dan Sistem Komputer 5, no. 1 (January 30, 2017): 43. http://dx.doi.org/10.14710/jtsiskom.5.1.2017.43-48.
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Development of Smarthome system has many important contributions to make a comfortable house. One of the problems is how to keep the house comfortable without becoming moist and getting enough sunlight. In this study, the roof opening that can automatically provide the supply of sunlight using automated roof opener. Manual control of the tool is using smartphone application that communicates through a Bluetooth HC-05 module. This tool also uses an automatic controller with a raindrop sensor that automatically activated when the rain drops on the sensor panel. In addition, this system also integrates the automatic light-intensity sensor using LDR (Light Dependent Resistor). The result of whole system testing is automatic rooftop opener using Arduino Uno works perfectly as the design that the motor is able to be controlled by smartphone application using serial communication based on Bluetooth so that the rooftop can be opened and closed. Pembuka atap otomatis dikembangkan dengan mengunakan mikrokontroler Arduino uno. Kontrol manual dari alat ini dilakukan dengan menggunakan aplikasi smartphone yang secara otomatis dan serial berkomunikasi dengan modul bluetooth HC-05. Alat ini juga menggunakan pengendali otomatis dengan sensor rintik hujan yang diaktifkan secara otomatis bila tetes hujan menyentuh panel sensor. Selain itu, sistem ini juga mengintegrasikan sensor cahaya intensitas otomatis menggunakan LDR (Light Dependent Resistor). Hasil pengujian sistem secara keseluruhan adalah pembuka atap otomatis menggunakan uno Arduino bekerja sempurna sebagai perencanaan bahwa motor ini mampu dikontrol oleh aplikasi smarthome dengan mengunakan komunikasi bluetooth, sehingga atap dapat terbuka dan tertutup pada titik tertentu.
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El-Zomrawy, Adham. "AMPERO-PHOTOMETRIC METHOD (APM) FOR THE DETERMINATION OF COLORED SOLUTION CONCENTRATION USING A LIGHT DEPENDENT RESISTOR (LDR)." Al-Azhar Bulletin of Science 30, no. 2 (December 1, 2019): 11–16. http://dx.doi.org/10.21608/absb.2019.86752.
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Nadziroh, Faridatun, Fadhilatusy Syafira, and Subhan Nooriansyah. "Alat Deteksi Intensitas Cahaya Berbasis Arduino Uno." Indonesian Journal of Intellectual Publication 1, no. 3 (July 23, 2021): 142–49. http://dx.doi.org/10.51577/ijipublication.v1i3.92.
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Kemajuan teknologi menjadikan aspek kehidupan menjadi lebih mudah dan sederhana sehingga membuat sistem otomatis lebih diminati daripada sistem manual. Salah satu sistem otomatis yang digunakan adalah alat untuk mengetahui waktu siang dan malam. Dalam penelitian ini dirancang suatu alat pendeteksi waktu siang dan malam dengan memanfaatkan intensitas cahaya di lingkungan sekitar sebagai parameternya. Penelitian ini memanfaatkan sensor LDR (Light Dependent Resistor) sebagai penangkap parameter, dimana LDR terbuat dari cadmium sulfida yaitu bahan semikonduktor yang mempunyai resistansi berubah-ubah menurut banyaknya cahaya (sinar) yang mengenainya. Selain itu juga memanfaatkan LED dan buzzer sebagai deteksi indikator. Dengan di dukung Arduino uno sebagai pengendali utama. Arduino berperan mengubah tegangan analog menjadi tegangan digital. sehingga cahaya yang masuk di lingkungan LDR, akan dikonversi menjadi nilai digital sehingga dapat dibaca oleh LDR. Selanjutnya Buzzer yang terhubung ke pin Arduino akan menghasilkan suara ketika terdeteksi adanya cahaya. Hasil dari penelitian ini bekerja dengan baik dibuktikan ketika terdeteksi adanya cahaya yang diterima oleh sensor LDR maka LED On (menyala) dan buzzer On (berbunyi) sedangkan Ketika tidak ada cahaya maka LED Off (tidak menyala) dan buzzer Off (tidak berbunyi). Penelitian ini bertujuan sebagai alat bantu informasi pergantian waktu siang-malam bagi tunanetra.
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Jurnal, Redaksi Tim. "KONTROL PENERANGAN TENAGA SURYA SEBAGAI IMPLEMENTASI DARI LISTRIK KERAKYATAN." Energi & Kelistrikan 9, no. 2 (November 23, 2018): 136–40. http://dx.doi.org/10.33322/energi.v9i2.43.
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Solar Street Lighting Light (PJU-TS) is a street lighting that uses sunlight as a source of electrical energy. The Solar Street Lighting (PJU-TS) is suitable for roads in areas not covered by PLN electricity and also areas experiencing electrical energy crisis especially in remote areas. But recently PJU Solar is also rife applied in urban areas such as in the main streets, residential street, garden lights, campus area, factory area, bus stops, parking lots, gas stations (gas stations) and so on. In the process of making solar lighting control system on the lamp for PJU is first to determine the load installed, then calculate the number of solar panels or photovoltaic needs, then calculate the battery requirements and determine the capacity of the battery charge regulator (BCR). Then for PJU lamps to operate automatically installed light sensor or light dependent resistor (LDR) as a switch to turn on and off PJU lights.
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Septriyaningrum, Indah Ayu, Dodon T. Nugrahadi, and Ichsan Ridwan. "PERANCANGAN DAN PENGEMBANGAN PROTOTYPE SISTEM PARKIR." KLIK - KUMPULAN JURNAL ILMU KOMPUTER 3, no. 2 (October 5, 2016): 146. http://dx.doi.org/10.20527/klik.v3i2.59.
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<p align="center"><strong><em>Abstract</em></strong><strong> </strong></p><p class="Default"><em>Manual parking systems in mall parking lot services requires a more complex management and development system, not to mention its inefficiency. The information acquired from the parking manager about the the parking space conditions in the field is lacking every day. The purpose of this research is to design and develop a parking system prototype. The development method and system design for this research is the Waterfall method. The results obtained is that this system is able to detect the presence of a vehicle on a designated parking space, with the help of an Intel Galileo Board Gen 2 as the controller, an LDR (Light Dependent Resistor) sensor, and an ultransonic sensor (PING) as an auxiliary. The system is able to display parking activity on a web application, such as empty parking space conditions, occupied parking spaces, time of arrival, parking period, parking space capacity, and also able to display a graphic image of the parking space utilization. It can be concluded that the design and development of the system is successfully implemented.</em></p><p class="Default"><strong><em>Key Word:</em></strong><em> </em><em>Parking system, waterfall, Intel Galileo Board Gen 2, LDR (light dependent resistor) sensor, ultrasonic sensor</em></p><p><em> </em></p><p align="center"><strong><em>Abstrak</em></strong><strong> </strong></p><p><em>Sistem parkir manual pada pelayanan parkir mall memerlukan pengelolaan dan pengembangan sistem yang lebih rumit dan jauh dari kata efisien. Informasi yang didapatkan pengelola parkir terkait kondisi parkir di lapangan setiap harinya </em><em>masih kurang</em><em>. </em><em>Tujuan dari penelitian ini adalah</em><em> merancang dan mengembangkan prototype sistem parkir</em><em>.</em><em> </em><em>Metode pengembangan </em><em>dan perancangan sistem pada penelitian ini adalah metode Waterfall. Hasil yang didapatkan adalah sistem ini dapat mendeteksi keberadaan mobil pada slot parkir yang tersedia dengan bantuan Intel Galileo Board Gen 2 sebagai kontroler, sensor LDR (Light Dependent Resistor) dan sensor ultrasonik (PING) sebagai alat bantu pendeteksi keberadaan mobil. Sistem dapat menampilkan aktifitas parkir pada aplikasi web seperti kondisi lahan parkir kosong, lahan terisi, waktu masuk, waktu keluar, lama parkir dan kapasitas parkir yang tersedia serta grafik pemakaian lahan parkir</em><em>. </em><em>Dapat disimpulkan bahwa perancangan dan pengembangan sistem berhasil diimplementasikan.</em></p><p><strong><em>Kata Kunci </em></strong><em>: </em><em>Sistem parkir, waterfall, Intel Galileo Board Gen 2,sensor LDR (Light Dependent Resistor), sensor ultrasonik</em></p>
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Imron, Chairul, Imam Abadi, Ilham Amirul Akbar, Jauharotul Maknunah, Yusilawati Ahmad Nor, and Aep Saepul Uyun. "Performance Comparison of the Single Axis and Two-Axis Solar System using Adaptive Neuro-Fuzzy Inference System Controls." E3S Web of Conferences 190 (2020): 00005. http://dx.doi.org/10.1051/e3sconf/202019000005.
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Solar energy is one of the renewable energy that gets more attention from many countries. Solar photo voltaic (PV) takes the right position to get the maximum energy yield. The study was conducted by comparison of performance with two methods of tracking the sun with one axis and two axes by using ANFIS control (Adaptive Neuro-Fuzzy Inference System). The solar tracking system is a system that operates on the sun by using a light sensor and controls the photovoltaic to always perpendicular to the sun by changing the pitch and yaw axis of the sun tracing properties. LDR (Light Dependent Resistor) is one of the light sensors whose resistance changes depending on the intensity of incoming light. Direct current (DC )motor is used as a PV drive panel in a solar tracking system. A two-axis solar tracking system has a greater power output than a tracking system with a single photovoltaic panel that does not use a tracking system (fixed).
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M.Prakash, U., Priyanshu Madan, K. R. GokulAnand, and S. Prabhakaran. "Intelligent Lighting System and Garbage Monitoring System." International Journal of Engineering & Technology 7, no. 3.12 (July 20, 2018): 876. http://dx.doi.org/10.14419/ijet.v7i3.12.16554.
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This paper aims at designing a system that focusses on two major societal issues in India i.e. improper garbage management and loss of energy from existing street lighting systems. We designed an intelligent lighting system Using embedded systems and machine learning algorithm we predict the environmental lighting conditions and accordingly change the behavior of the street lights. The present street lighting systems use timer or manual interaction to turn on and off the lights. But these methods are not energy efficient. In our model, we used Light Dependent Resistor LDR and algorithm to eliminate those drawbacks. In Garbage monitoring system, alerting the concerned authorities about the level of garbage collected was the most important aspect. In this system, an Ultrasonic sensor along with machine learning algorithm was used to solve the above situation.
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SARIEF, IVANY, USMAN SARTOYO, DADANG KURNIA, CECEP SUBAGJA, ALDO GERALDI DJATNIKA, and ANDIKA PRATAMA. "Otomasi Penerangan Laboratorium berdasarkan Aktivitas Manusia." MIND Journal 4, no. 2 (December 10, 2019): 80–95. http://dx.doi.org/10.26760/mindjournal.v4i2.1-16.
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Energi listrik menjadi kebutuhan penting dalam kehidupan. Ketergantungan manusia terhadap energi listrik dewasa ini terus meningkat, sehingga manusia dituntut untuk melakukan penghematan dalam pemakaian energi listrik. Oleh karena itu otomatisasi perlatan listrik diperlukan, guna menghindari pemborosan energi listrik. Desain otomasi ini terdiri dari sensor Passive Infrared Receiver (PIR) yang berfungsi sebagai pendeteksi aktivitas manusia, sensor Light Dependent Resistor (LDR) yang berfungsi sebagai pendeteksi cahaya, dan kontroler sebagai pengendali jalannya sistem otomasi ini. Sistem yang di implemasikan mampu menghidupkan dan mematikan lampu ruangan secara otomatis berdasarkan keberadaan manusia dengan luas jangkauan sensor PIR HC-SR501 sejauh 365,3 cm.
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Hidayat, Darmawan, Bambang Mukti Wibawa, Setianto Setianto, Nendi Suhendi Syafei, and Arif Choerudin Suanda. "Sistem Sensor Estimasi Tingkat Kematangan Buah Stroberi Berdasarkan Kecerahan Warna Merah." Jurnal Teknologi Rekayasa 2, no. 2 (December 20, 2017): 83. http://dx.doi.org/10.31544/jtera.v2.i2.2017.83-90.
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Seleksi tingkat kematangan pada buah stroberi merupakan salah satu upaya untuk meningkatkan kualitasnya. Tingkat kematangan dalam panen merupakan faktor paling penting yang menentukan kualitas buah. Stroberi yang telah matang optimal memiliki banyak kandungan nutrisi. Sensor tingkat kematangan stroberi telah dibuat berdasarkan kecerahan warna merah pada permukaan kulit stroberi. Sistem sensor dirancang dengan menggunakan Light Dependent Resistor (LDR) sebagai sensor intensitas cahaya dan Light Emitting Diode (LED) sebagai sumber cahaya. Penelitian ini bertujuan untuk mengukur tingkat kematangan stroberi dengan menggunakan tiga derajat warna merah, yaitu light-red, fresh-red dan black-red untuk membedakan tingkat kematangan buah stroberi. Nilai tingkat kematangan untuk light-red 671,2, fresh-red 709,05 dan black-red 777,5. Hasil menunjukkan bahwa sensor dapat mendeteksi tingkat kematangan stroberi dengan presisi 93,3%. Dengan demikian, sensor tingkat kematangan stroberi dapat direalisasikan.Kata kunci: stroberi, tingkat kematangan, light-red, fresh-red, black-red
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Yoga Widiana, I. Wayan, I. Gusti Agung Putu Raka Agung, and Pratolo Rahardjo. "RANCANG BANGUN KENDALI OTOMATIS LAMPU DAN PENDINGIN RUANGAN PADA RUANG PERKULIAHAN BERBASIS MIKROKONTROLER ARDUINO NANO." Jurnal SPEKTRUM 6, no. 2 (June 1, 2019): 112. http://dx.doi.org/10.24843/spektrum.2019.v06.i02.p16.
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Automatic control technology for energy savings is no stranger to social life. Negligence in turning off lights and air conditioners in class is one example of the waste of electricity that occurs in school and campus institutions. By using the PIR (Passive Infra Red) sensor and LDR (Light Dependent Resistor) on the automatic control system of lights and air conditioners, it is expected to reduce excess electricity consumption. All uses of sensors are connected directly to Arduino Nano as the center of automatic system controllers. Software design uses the basic programming language C Arduino and utilizes the timer library function which functions as a room timer. From the results of the research, this tool can already be used as an automation while saving electricity consumption in the use of electronic devices such as lights and air conditioners.
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Sriwati, Tzal Aedi Al Abshari, Ansar Suyuti, Andani Ahmad, and A. Ejah Umraeni Salam. "Control of light Intensity via Microcontroller for the Efficiency of Electrical Energy." MATEC Web of Conferences 331 (2020): 06006. http://dx.doi.org/10.1051/matecconf/202033106006.
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Lighting is a factor to get a safe and comfortable environment. Good lighting allows one to see objects that are done clearly, and can give a refreshing view. Conversely, if the room has poor lighting can cause eye fatigue, therefore it is necessary to control the intensity of light-based microcontroller to regulate the lighting of a room automatically. his research was made by designing a lighting model using a dimmer circuit based on ATMega328 microcontroller, LDR sensor (Light Dependent Resistor) and Bluetooth HC-06. The working principle of the LDR sensor is receiving light from the outside which causes changes in the input voltage level to the microcontroller while the Bluetooth HC-06 works by connecting a Bluetooth device with a smartphone that has installed the PWM Light Control application. which is then processed by microcontroller output in the form of pulse voltage (PWM) in the dimmer circuit to adjust the dim and bright lights. Results for electricity voltage (Volt), Electricity (Ampere), Light level (Lux) and electrical power used. At each increase from 0-255 PWM which is channeled to the dimmer circuit, the power is 0-13,0357 watts, comparable to before using a circuit of around 13,5036 watts with a percentage of 1. 7% with a 15-Watt lamp, the light conditions are stable in brightness. The distance of control of this tool reaches 26. 15 m with 1 barrier wall and still works with 3 barrier walls with a distance of 21. 45 m. So that the use of electric power and light can be adjusted to the needs.
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F. Nori, Abbas, and Faisel G. Mohammed. "A Prototype solar tracking system design and implementation." Journal of Kufa-Physics 12, no. 01 (June 10, 2020): 32–37. http://dx.doi.org/10.31257/2018/jkp/2020/120105.
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In this work comparison between the results of the first systems is a fixed solar and the second is the sun tracking in an attempt to increase the proportion of electricity production. Here a microcontroller (Arduino) and the light-dependent resistor (LDR) photo detector is used in this tracker. And then compare the results in different weather conditions and on different days to test the efficiency of the two systems. The efficiency of the tracking system is better than the fixed system by 12.3% on a sunny day and 4.9% on a partly cloudy day. However, it failed by 3.3% on a cloudy day. With a sunny day preference in the tracking system at 6.9% of partially cloudy days, and 12.1% with partially cloudy to a cloudy day. And verified from The efficiency of the work of the microcontroller (Arduino) system and the optical detector (LDR).
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Salawu, R. I., and S. O. Adetona. "Modeling of A LDR Based Liquid Level Detecting Device Using Power Function." Engineering and Technology Research Journal 6, no. 2 (September 2, 2021): 16–23. http://dx.doi.org/10.47545/etrj.2021.6.2.080.
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All vehicles require liquid to move from one point to the other; and it is necessary for the driver of the vehicle to ascertain the volume (level) of the liquid in the tank before setting out on a journey, hence the need to know the level of the liquid in the tank. This paper therefore presents modeling and simulation of a sensory device, which evaluates the volume VLQD of any type of liquid in any type of a closed container that has a cross-sectional area A (m2) and height h (m). The main attraction of the approach is that it does not get in touch with the liquid, its simplicity and lower cost. The aim is achieved by using a sensor, Light Dependent Resistor (LDR); which operates on a principle which states that the voltage ELUX in Volts across a LDR is a function of luminance it receives from a light source, Light Emitting Diode (LED). This principle and a power function developed using experimental data were used to model VLQD; which reveals that VLQD in litres is a function of ELUX in Volts. The model of VLQD was simulated for the sake of validation in the Proteus 8.9 professional environment. The results obtained revealed that the proposed model correctly indicated the VLQD in litres in a closed container that its A (m2) and h (m) are known and specified in the model.
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Rahmadi, Aji, Adi Ahmad Dimisa, Asep Kurniawan, and Frida Agung Rakhmadi. "SiAlS (Simple Alarm System) Based Light Dependent Resistor (LDR) and Basic Logic Gate as an Attempt to Preventing on Helmet Theft." Proceeding International Conference on Science and Engineering 2 (March 1, 2019): 229–30. http://dx.doi.org/10.14421/icse.v2.91.
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Research on the Light Dependent Resistor (LDR) and the basic logic gates in the designing and manufacturing SiAlS (Simple Alarm System) as an attempt to Prevent theft helmet on had been done. This research was conducted aiming to create and Characterize alarm system. This study was intended to Prevent theft of the helmet. The method used in this research is divided into three stages, designing, manufacturing and testing. The working principle of this alarm system is when the helmet is mounted in the rearview mirror, the LDR will be closed so that the resistance increases the which causes the alarm to Become inactive. However, if the helmet is taken, the alarm will activate because The resistance decreases. However, the alarm will not work if the sensor cable is cut by the thief. To Overcome this problem, additional circuits are made using a NOT logic gates. The results of this research are prototypes in testing alarm systems and alarm systems get a 100% success rate. The advantage of this alarm systems are cheap and simple, Because it does not use a microcontroller and can be made individually.
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Bulusu, Sowjanya, Madhuri Krosuri, Rishitha Koripella, and Nalini Sampath. "Smart and Secure Home Automation Using Internet of Things Enabling Technologies." Journal of Computational and Theoretical Nanoscience 17, no. 1 (January 1, 2020): 390–95. http://dx.doi.org/10.1166/jctn.2020.8680.
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Many tools have been developed to control different devices from a remote location with the advancement in science and technology. These tools enable the control of the devices automatically without any physical contact with the switches. The purpose of the paper is to design Internet of Things (IoT) based prototype and implement high security system with smart controlling of the appliances of the home in an automated way. For this we use fingerprint sensor for authentication, Voice controlled system and Light Dependent Resistor (LDR) sensor for controlling the home appliances and a Global System for Mobile Communication (GSM) technology is used to alert the owner in case of authentication failure.
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Alisman, Alisman, and Wildian Wildian. "Rancang Bangun Sistem Kontrol Gorden, Lampu, dan Kipas Angin Berbasis Arduino Uno R3." Jurnal Fisika Unand 7, no. 3 (July 2, 2018): 279–85. http://dx.doi.org/10.25077/jfu.7.3.279-285.2018.
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Telah dilakukan sebuah rancang bangun prototipe sistem kontrol gorden, lampu, dan kipas angin ruangan berbasis Arduino Uno R3. Gorden diruangan terbuka atau tertutup dan lampu hidup atau mati secara otomatis berdasarkan pendeteksian cahaya luar ruangan oleh sensor LDR (Light Dependent Resistor).Gerak buka-tutup gorden tipe vertical blind ini dilakukan melalui mekanisme putaran motor stepper 5V. Suhu dan kelembaban ruangan dideteksi oleh sensor DHT22 untuk pengontrolan kipas angin. Nilai suhu dan kelembaban ditampilkan pada LCD 2x16. Hasil uji ini menunjukkan bahwa sistem otomatis yang dikontrol dengan mikrokontroler ATmega328 dapat bekerja sesuai dengan algoritma yang dirancang. Kata kunci : Sensor, Intensitas cahaya, vertical blind, kelembaban relatif, suhu, motor stepper
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Setiawan, Andrew, and Supriono Supriono. "PROTOTIPE KENDALI MODEL ATAP BERSIRIP OTOMATIS TERMONITORING UNTUK TEMPAT PENGERINGAN BERBASIS SMS GATEWAY DENGAN MODUL GSM(GPRS) SIM800L." Transmisi 22, no. 3 (August 17, 2020): 88–95. http://dx.doi.org/10.14710/transmisi.22.3.88-95.
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Permasalahan utama dari proses penjemuran hasil panen pertanian dan proses permindahan hasil panen dari penjemuran ke tempat penyimpanan adalah kondisi cuaca. Kemajuan teknologi nirkabel (wireless) sangat mendukung sebagai sarana monitoring pada proses penjemuran hasil panen pertanian, salah satunya adalah teknologi GSM (Global System for Mobile Communications) yang murah dengan jangkauan luas serta media komunikasi dan sarana informasi yang real-time. Penelitian ini bertujuan merancang suatu sistem kendali model atap bersirip otomatis termonitor melalui handphone yang bisa mengendalikan buka atau tutup atap secara manual, dapat juga bekerja secara otomatis terus-menerus dengan membaca parameter-parameter kondisi lingkungan seperti cuaca hujan atau tidak, cuaca cerah tersinari matahari maupun suhu ruang yang disesuaikan >29o. Sistem dirancang menggunakan sensor hujan ( Weather Sensitivity Module ), sensor suhu DHT11, dan sensor cahaya LDR (Light Dependant Resistor) serta motor servo sebagai aktuator dengan menggunakan Arduino sebagai unit pengendali sistem. Sistem dirancang dengan kemampuan untuk menyesuaikan arah sinar matahari (tracking) dengan posisi sirip atap antara 110o,130o,145o dan 175o guna memaksimalkan panas sinar matahari pada proses penjemuran yang dilengkapi dengan modul GSM SIM800L untuk proses monitoring dan kontrol jarak jauh. Keberhasilan penelitian ini sangat bermanfaat di bidang pertanian khususnya penerapan teknologi hasil pertanian.
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Francis, John, Denie Sam Jawahar, Antony John Paul, and M. Lydia. "Design and Analysis of 24 Hours Solar Panel." MATEC Web of Conferences 225 (2018): 06006. http://dx.doi.org/10.1051/matecconf/201822506006.
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The design of a 24/7 solar panel using artificial method of producing Infra-Red (IR) has been proposed in this paper. This arrangement ensures that the solar panel can produce energy even during night time. The major disadvantage of a solar panel is that it cannot be used during night time and when the panel is shaded. Our project aims to eliminate these disadvantages of solar panel. In this work, a Light Dependent Resistor (LDR) resistor is used to sense day or night conditions and the analog sensed value is sent to the PIC microcontroller. During night hours, only specified load will be on, so that the battery works without getting discharged fully even in the midnight. The IR Light Emitting Diodes (LEDs) that are used in night are placed in inner side of the shutter which is placed on top of the panel. The shutter is opened and closed using a motor which is controlled by using relay. The charge and discharge conditions of the battery are monitored by a Global System for Mobile Communications (GSM) module. The efficiency and economic analysis of the system has been presented.