Ultrasonic Distance Sensor HC-SR04

Distance measurement module HC-SR04 Ultrasonic Arduino support, contactless free 

Technical parameters: 

1.Working Voltage: 5 V (DC) 

Actual 2.Static: Less than 2 mA. 

Output signal: frequency electrical signal, high level 5V, 0V low. 

Sensor detection angle: ≤ 15 ° .

Detection range: from 2cm to 500cm. 

Accuracy: Can detect variations of up to 0.3 cm 

Sign commissioning: TTL signal 10 microseconds 

Output signal: TTL signal PWL ("piecewise linear" piecewise linear) 

Leaded: 

1.VCC (Power) 

Two. Trigger Pulse Input (input signal) 

Three. Echo Pulse Output (output) 

4.GND (Earth)