Ultrasonic Sensor HC-SR04
$3
IR Transmitter and Receiver Module – Infrared Pair for Communication & Object Detection
$3
The IR Transmitter and Receiver Pair provides a simple, effective way to implement infrared communication or proximity detection in electronics projects. Ideal for remote controls, object detection, and IR communication between devices.
The IR Transmitter and Receiver Module is a matched set that uses infrared light for wireless communication and sensing. The transmitter (IR LED) emits modulated IR signals, and the receiver (IR photodiode or phototransistor) detects these signals when reflected off objects or received directly from a source.
This setup is widely used in IR remote control systems, line-following robots, obstacle detection, and non-contact object counters. The module operates on standard 3.3V–5V logic and integrates easily with microcontrollers like Arduino, ESP32, and Raspberry Pi.
