Product Feature :
HC-SR04 ultrasonic module can offer non-contact distance whose range sensing is up to 2mm function with the range of 2cm - 400cm. And the range accuracy is up to 2mm.
This module includes ultrasonic transmitter, receiver and control circuit.

Module Technical Parameters :
1. Working Voltage : 5V(DC)
2. Static current: Less than 2mA.
3. Output signal: Electric frequency signal, high level 5V, low level 0V.
4. Sensor angle: Not more than 15 degrees.
5. Detection distance: 2cm-450cm.
6. High precision: Up to 0.3cm
7. Input trigger signal: 10us TTL impulse
8. Echo signal : output TTL PWL signal

Mode of Connection :
1. VCC
2. Trig(T)
3. Echo(R)
4. GND

Specification :

Tested by ICStation Outstanding Partners Leon Anavi and Ecprojects :

Please click the button below to download the material