2 X HC-SR04 Ultrasonic Distance Measuring Transducer Sensor For Arduino
Module main technical parameters:
- Working Voltage : 5V(DC)
- Static current: Less than 2mA.
- Output signal: Electric frequency signal, high level 5V, low level 0V.
- Sensor angle: Not more than 15 degrees.
- Detection distance: 2cm-450cm.
- High precision: Up to 0.3cm
- Input trigger signal: 10us TTL impulse
- Echo signal : output TTL PWL signal
Mode of connection:
Connection: VCC, trig (control side), echo (receiving end), GND