Ultrasonic Sensor Module Technical Specification1,Product synopsis
ultrasonic sensor is non-contact distance measurement module, which is also compatible with electronic brick.It’s designed for easy modular project usage with industrial performance.
2,Product principle
Ultrasonic ranging module provides 2cm - 400cm non-contact measurement function, the ranging accuracy can reach to 2mm. The modules includes ultrasonic transmitters, receiver and control circuit. The basic principle of work:
Using IO trigger for at least 10us high level signal,The Module automatically sends eight 40 kHz and detect whether there is a pulse signal back.
IF the signal back, through high level , time of high output IO duration is the time from sending ultrasonic to returning. Test distance = (high level time×velocity of sound (340m/s) /2
Supply voltage | 5 v |
Global Current Consumption | 15 mA |
Ultrasonic Frequency | 40k Hz |
Maximal Range | 400 cm |
Minimal Range | 3 cm |
Resolution | 1 cm |
Trigger Pulse W idth | 10 μs |
Outline Dimension | 43x20x15 mm |
ultrasonic sensor module