Jumper Wires Working Principle: IR Sensor Operation: The IR sensor emits infrared light from an LED and detects the reflected light with a photodiode. When an object comes within the sensor's range, ...

Note: A compact analogue reflectance sensor such as the CNY70 was not used in the Arduino Uno experiments described. Instead, a homemade sensor was assembled using a single infrared LED (IR333C) and a ...

When a finger or other object touches the surface, it causes the IR light to scatter in many directions. Some of this light is directed down into the screen, towards an array of 64 IR sensors.

The part list consists of one Arduino, two resistors, and one IR emitter. That’s right, an emitter. When an LED (IR or otherwise) is reverse biased it can act as a light sensor.

Posted in Arduino Hacks Tagged arduino, arduino pro mini, candle, lighting, neopixel, neopixel ring, RGB LED, ws2812b ← Retrotechtacular: There’s More Than One Way To Escape A Submarine ...