universal-solder.ca
Ultrasonic Distance Measuring Sensor HC-SR04 Arduino etc.
Ultrasonic Distance Measuring Sensor HC-SR04 for Micro Controller (Arduino, Raspberry etc.). Measuring range 2 - 400 cm, resolution 3 mm. Very easy to use ultrasonic distance measuring. The small PCB contains ultrasonic transmitter, receiver, and control logic. 2 digital ports are needed to connec