Ultrasonic Distance 37

Measure obstacle distance with trigger and echo timing.

Source code and build tools are available in the protected platform workspace.

How it works

Measure distance with an ultrasonic trigger/echo module.

1. Wire TRIG and ECHO to the listed pins.
2. Send a short trigger pulse.
3. Measure echo pulse time with pulseIn().
4. Convert travel time into distance in centimeters.

Connections