psmmacker Posted September 18, 2017 Share Posted September 18, 2017 a car ecu computer this is from my fiat panda had a gnd added to the pcb on the outside of the casing from the 12 volt battery i wonder if the mcu of the stm32 needs the same as there is transisters or smd fueses on every pin of the car ecu outputs and inputs pins thanks paul Link to comment Share on other sites More sharing options...
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