I have a Speeduino Dropbear V2 and I want to add a Knock sensor with an external controller that puts out a digital High/Low signal. There is no dedicated pin available so I have to use one of the ...

I have an issue with my Wtmtronics v0.4.3d board where my output for my fuel pump pin is not grounding when I turn the key to the start. The fuel pump will actuate if I manually ground the ecu pin for ...

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