On 29/02/2012 9:45 PM, IVP wrote: >> Has anyone ever interfaced these off-the-shelf >> sensors to a PIC? > > Popular in robotics. Google ultrasonic robot Yeah, already played with the robot ones. They are open transducers. =20 The sealed ones need a lot more drive level it seems. I guess my question is really two-fold; A) Does anyone have a reasonable reference design for interfacing to the=20 sealed parking type sensors? B) Is there some basic code out there that shows what's required the=20 ping and receive? There are lots of Google hits for unsealed Tx-Rx pair system, but not=20 much for the sealed all in one units. David... --=20 ___________________________________________ David Duffy Audio Visual Devices P/L Unit 8, 10 Hook St, Capalaba 4157 Australia Ph: +61 7 38235717 Fax: +61 7 38234717 Our Web Site: www.audiovisualdevices.com.au ___________________________________________ --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .