IR obstacle avoidance sensor is for detecting obstacles in close range | Infrared obstacle avoidance sensor module can be widely used for robot obstacle avoidance, obstacle avoidance car assembly line count and black-and-white line tracking and many other occasions | This IR obstacle avoidance sensor is a good idea for detect obstacles(the presence of objects) in various Arduino robotic projects related to home automation and robotics | IR reflective barrier for raspi or arduino.Works pretty well on arduino, but especially usefull with raspberry pie and/or ESP8266 since board as sensitivity control on board (poti to adjsut threshold) and only provides digital out which can then be counted | The obstacle detector includes a potentiometter to calibrate the switching distance. Ideal for amateur optical obstacle sensor for short distances. Connection is very easy, as well as sensitivity regulation

Great IR Receivers and Transmitter. Useful for Arduino experiments and remote projects | Connected both a transmitter and a receiver to your Raspberry pi and you could control all the IR devices in your home | The IR LED is like any other LED can be hooked up directly to a GPIO port,but will give better results if used with a pull-down resistor | This IR LED can be used to control a TV with the emitter on an adruino and you can use the receiver to read the signals from other IR devices too | These infrared diodes will work fine for small-robot control via infrared control;tv remote. The pins, as you look straight at the "eye", from left to right are signal, ground and vcc