Product Summary

The HC-SR04 is an Ultrasonic ranging module. It provides 2cm - 400cm non-contact measurement function, the ranging accuracy can reach to 3mm. The modules includes ultrasonic transmitters, receiver and control circuit.

Parametrics

HC-SR04 absolute maximum ratings: (1)Working Voltage DC: 5 V; (2)Working Current: 15mA; (3)Working Frequency: 40Hz; (4)Max Range: 4m; (5)Min Range: 2cm; (6)MeasuringAngle: 15 degree; (7)Trigger Input Signal: 10uS TTL pulse; (8)Echo Output Signal: Input TTL lever signal and the range in proportion; (9)Dimension: 45*20*15mm.

Features

HC-SR04 features: (1)5V Supply; (2)Trigger Pulse Input; (3)Echo Pulse Output; (4)0V Ground.

Diagrams

HC-SR04 block diagram