Thanks all, this makes everything a bit more clear now. Changing it to GPIO.BCM did the trick for the python script.

Heres the circuit wiring

Have you tried setting the pin from the command prompt? # gpio mode 5 out # gpio write 5 1 # gpio write 5 0 See if that flips your LED. Forgot to say that yes, I tried setting gpio mode to out. Do you get any errors from the Python script? You aren't passing pin to the def. Return doesn't need the ...

I have tried quite a bit over these past few hours trying to get a simple LED to light up to no avail. Plugging into the 3.3v worked, but GPIO pins just will not work for whatever reason. WiringPi & Python just won't work. pin I'm using | 18 | 1 | OUT | GPIO. 5 | 5 | 24 | commands I've tried: gpio w...