On Sun, 21 Jan 2018 14:33:13 +0000, RobH wrote:

> I have been trying to get a simple led project to work on my pi 3 using
> a 5 volt 6 amp power supply and a 510 ohm resistor in front of the led
> to reduce the current going to it. Now after trying different tutorials,
> my pi 3 goes off on it's own from being powered up.
>
> If I remove the power lead and restart the pi 3 the red comes on and the
> green led flashes as well as the ethernet port flashing green led.
>
> I ssh into the pi 3 to try and run a python program, but then the pi
> dies, and there are no lit up leds anywhere at all on it.
>
> Is there any way it can be fixed or should I just forget about it.

The GPIO ports on a pi are 3.3 V
if you have driven them at 5V without protection you may have damaged the
port & possibly other parts of the CPU (current limiting with a resistor
may not be sufficient protection).

this could easily result in erratic or unpredictable behaviour.




--
A baby is God's opinion that the world should go on.
  -- Carl Sandburg

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