Features:

  • Using IO trigger for high level signal (Not less that 10us)
  • The module sends eight 40kHz automatically and detect whether there is a pulse signal back
  • Working Voltage: DC 3V-5.5V; Quiescent Current: <2mA
  • Test distance=((Duration of high level)*(Sonic: 340m/s))/2
  • Good for learning basic knowledge about Arduino and sensors