Does anyone know any simple to use USB data aquisition hardware that supports car voltages? I am installing a carpc into a car without OBD and require some of the digital outputs displayed as dash lights to be viewed in the pc display. Analogue outputs such as engine temp or fuel may need to be veiwed too. Not too sure whether these analogue outputs a variable voltage or resistance though i'll get the simple digital outputs out of the war first.
Any ideas ppl?
I use a lot of these at work:
http://www.measurementcomputing.com/...EKJX6D4WXU9L0C
They accept up to 20Volts in differential mode G1.
http://www.measurementcomputing.com/...08lsspecs.html
As far as digital I/O use resistors for input voltage dividers (down to board range) and optocouplers or relays to raise TTL output to 12V:
http://www.mikroe.com/en/books/picbook/7_04chapter.htm
Posting Permissions
LinkBack URL
About LinkBacks
Reply With Quote
Bookmarks