Modulo per Arduino
Ultrasonic sensor HC-SR04
Working Voltage: 5V(DC)
Static current: Less than 2mA.
Sensor angle: Not more than 15 degrees.
Output signal: Electric frequency
Echo signal: output TTL PWL signal
Sensor angle: Not more than 15 degrees.
Detection distance: 2cm-450cm
High precision: Up to 0.3cm
Input trigger signal: 10us TTL impulse
Weight: 20g
Mode of connection:
1.VCC
2.trig(T)
3.echo(R)
4.GND
