I need to have my arduino (mega) know the state of my blinker on my car. Not if the signal is high or low (whether the actual signal is high or low), but if the blinker is turned on or off. Yes i could take the signal from before it blinks but i want to take it from the blinker directly. To clari…

Need help on how to approch 12v digital read on a blinking signal

sirbow2 March 7, 2012, 1:32pm 7

sorry bout that optoisolator, don't know what i was thinking

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