I think my RPi is fried
So yesterday I was trying to get dimming to a LED strip using MOSFETs and PWM through Pi-blaster. I didn't have a breadboard at hand so I connected the components on the table and one of the MOSFETs short circuited all the three pins on the other MOSFET forcing 12V into the GPIO of the RPi. I know that the GPIO do not have a fuse to shield it and the RPi is probably nothing more than electric waste, but do you know of anybody getting the RPi back to life from something like this? Checking what component broke and then changing it?
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mahjongg
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Re: I think my RPi is fried
without a safety resistor between the GPIO and the gate of the FET putting 12V on it means putting (through a diode in the GPIO logic) 12V on the 3,3V logic, which means instant destruction of all the 3V3 logic. The only recovery from that is to buy a new one. 
If you had used a 10K safety resistor the current flowing from 12V into the GPIO would have been less than 1mA, and the 3V3 regulator would have managed that, and your PI would have kept working, but not now.
If you had used a 10K safety resistor the current flowing from 12V into the GPIO would have been less than 1mA, and the 3V3 regulator would have managed that, and your PI would have kept working, but not now.
Re: I think my RPi is fried
well that's what happens when I can't wait for all my components to arrive before I start messing around. Now I have to wait until tomorrow to get my spare RPi from work. Thanks for the tip about the 10K resistor. Will pick one of those up before messing around with this setup again.