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I saw your trig code and figured it was engine related.
I actually wrote this code to measure engine exhaust gas temperature. You can buy temperature probes that are designed to work for this application
search type K EGT on ebay and you will find them for about $15.
I picked up a pressure sensor to measure turbo boost pressure. That sensor has a 0 - 40mv voltage swing from 0 - 29 psi. I now realize I should have looked harder to find one that had SPI or I2C interface as it would be easier to interface.
user7143
Nice, thanks both of you!
I've got an Espruino car ECU project and I always wanted to be able to log the exhaust temperature. It glows cherry red so it'd melt most stuff - I'll have to have a look at this and see if I can rig something up :)