Sensors for Automobile Computers?

Posted by Cliff on Tuesday December 30, 2003 @04:55AM from the computers-and-automobiles dept.

Bombcar asks: "I'm going to be installing an EPIA mainboard in my car, using a DC-DC power supply. It is mainly for playing music, but it has the potential for so much more. I know I can get LCD displays, and I know that various sensors are made for automobiles, but I want to combine both these with the computer. Most car sensors are analog, so does anyone know of an easy way to interface with analog (and perhaps some digital) sensors? Anything used would have to be able to stand up to the rigors of automobile use. The EPIA board has 4 serial ports, a parallel port, and some USB ports, along with a PCI slot. I plan to use this for display purposes only (not control any important vehicle functions), but am also leaning towards some 'fun' improvements, such as playing certain songs when the pedal is floored."

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Automotive Electronics Engineering by ka9dgx · 2003-12-30 06:00 · Score: 2, Insightful

Cars are VERY hostile to electronics. You've got the pulse noise from the ignition, a power supply that can vary from 0 to 15+ volts during normal operation, and environmental extremes that go from whatever the coldest night you encounter, through more that 20 degrees C over the hottest noon.
Needless to say, it sounds like you're going to take the prudent choice and let someone else do the engineering. Try not to be surprised when your system has to deal with the oddities.
Good luck!
--Mike--