interfacing the ping! ultrasonic rangefinder directly to the PC

grindel

Please help a noob out here.
I have a parallax servo controller, The way I read the ping sensor documentation is that it is a PWM signal, is there a way to read this signal with my servo controller?
this is a laptop telepresence bot running roborealm, I don't really want to go to the expense of getting a basic stamp just for an ultrasonic sensor.

Thanks

Chris Savage

Hello,

Actually the PING))) doesn’t work on PWM. That implies a duty cycle whereas the PING))) simply returns a pulse whose width is proportional to the distance. Since the pin is bi-directional and not serial there is not way to connect it directly to the PSC without using a BASIC Stamp or other microcontroller to handle the two different protocols. I hope this helps. Take care.

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Chris Savage
Parallax Tech Support

grindel

any suggestions for the cheapest path to get the ultrasonic sensor to work with roborealm?

Tricky Nekro

Try the SX microcontroller·family
Cheap, versatile and very fast...

Regards...

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