Ultrasonic Module HC-SR04 Distance Sensor

Module main 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-500cm.

6.High precision: Up to 0.3cm

7.Input trigger signal: 10us TTL impulse

8.Echo signal : output TTL PWM signal

Mode of connection:

1.VCC

2.trig(T)

3.echo(R)

4.GND