[Gumstix-users] Using Robostix for timing an Ultrasonic echo

[Lee W. <lee...@go...>]

Hi there,

I am currently using a standalone Robostix board with a Senscomp 6500-SMT
ultrasonic range module. I'm using Port C to set a pin high, which triggers
a pulse from the ultrasonic module, and (at the moment) using the ADC port
to receive a return echo signal. My question is, how do I setup a timer such
that I can measure the time elapsed between the trigger and the echo? I've
tried using the timer TCNT2 without any success and I have very limited
experience with this setup so any help or advice would be much appreciated.

Thank you kindly,