So I've come up with the idea to make the Arduino display something on a tiny OLED display once it gets a signal. However this signal is 12v. The signal in question is the VTEC signal (1994 Honda), this wire powers the VTEC solenoid on the engine. Now what I want that signal wire to do is send a si…

Using a 12V signal from my car to make the Adruino draw on a display

Paul_B May 4, 2022, 10:39pm 7

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