Re: How do i use the spare printrboard pins to drive a transistor

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oldmanbeefjerky
OK, i decided to go through every pin until i got it, finally found the output pins. Ironically my laser driver stuffed itself somehow, right before i had it all ready to wire up, so i have to build a new one.

hi, i was thinking of adding an eject function for my printrbot and found your post. Could you point out which pins are output? i think it could prove useful for anyone trying to add something extra to their printers.
Thanks