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Need interface circuit for oil pressure - Picaxe processor

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rexlan

rexlan

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picaxe gauge

I have the 12v single wire oil pressure sender in the car. I believe it produces a variable output voltage vs. pressure which usually connects to a gauge.

I want to connect this signal to the Picaxe processor A/D input. Issues are noise from the auto electrical system and converting the maximum sensor swing to a usable voltage for the processor without the use of an amplifier.

Second is an interface for the temperature sensors. The "proto" car is a Ford Escort engine. I think these are thermistors.

Thanks
 

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