IR LED
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A Homemade Approach to Long-Range Night Vision Most infrared night-vision systems are limited to relatively short distances mainly because standard IR LEDs spread light too widely to be effective over long ranges. Curious about the practical limits of infrared imaging, the independent engineering channel Project 326 developed a custom-built system aimed at long-range nighttime observation. The system combined a modified low cost… |
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Understanding MAXREFDES117 Module: A Tiny Optical Heart-Rate Sensor For wearable projects, having the right sensor module makes all the difference. As you all know, this year’s contest theme is Smart Home and Wearables, so we came up with another sensor module, the MAXREFDES117 optical heart-rate module. This device comes with integrated red and IR LEDs, making it an ideal choice for developers and enthusiasts alike. The MAXREFDES117… |
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Automatic AC Temperature Controller using Arduino, DHT11 and IR Blaster An AC (Air Conditioner) which was once considered to be a luxury item and was only to be found in big hotels, movie halls, restaurants etc... But, now almost everyone has a AC in our home to beat out the summer/winter and those who have it, worry about one common thing. That is their high electricity consumption and chargers due to it. In this project we are going to… |
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Interfacing IR Sensor Module with Arduino An infrared proximity sensor, or IR Sensor, is an electronic device that emits infrared light to detect objects and motion in Arduino projects. This interfacing of the IR sensor module with Arduino is perfect for obstacle avoidance robots, motion detection systems, and proximity sensing applications. Whether you're building your first Arduino project or need a reliable… |
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A Simple Dynamic System for Monitoring of Heart Rate, Oxygen Level and Body Temperature We all saw how everyone started to panic during the onset of the pandemic, and it was because of the lack of solid information and the spread of fake news. And this is how people fall under the misconception and get confused about the symptoms of a disease. That is why we wanted to build a project that will allow people to check whether they are COVID… |
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Optocoupler: Its Types and Various Application in DC/AC Circuits Opto-coupler is an electronic component that transfers electrical signals between two isolated circuits. Optocoupler also called Opto-isolator, photo coupler or optical isolator. Often in circuits, especially low voltage or highly noise sensitive circuits, Optocoupler is used to isolate circuitry to prevent electrical collision chances or to exclude… |
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Remote Controlled Light Switch IR LED emits infrared light, and used in TV remotes. This Infrared is received by the receiver TSOP17XX (TSOP 1738used in TV). TSOP17XX receives the modulated Infrared waves and changes its output. TSOP is available in many frequency ranges like TSOP1730, TSOP1738, TSOP1740 etc. Last two digits represent the frequency (in Khz) of modulated IR rays, on which TSOP responds.… |
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How to build a Simple IR Transmitter and Receiver Circuit using 555 Timer? IR Transmitter and IR Receiver are commonly used to control electronic devices wirelessly, mainly through a remote. TV remotes and AC remotes are the best example of IR transmitters. TV generally consists of TSOP1738 as the IR receiver, which senses modulated IR pulses and convert them into electrical signal. Here in our circuit we are building IR remote and its receiver.… |
