Following the guidance on this post I have enabled the 5V pin. That same post suggests that I control that pin with D12, though I find it weird since there is already a D12 pin. When I try and run some code the D12 pin is performing exactly as I expect, but the 5V pin is doing nothing.
Looking through the tech specs it says "the 5V pin does NOT supply voltage but is rather connected, through a jumper, to the USB power input." which I find odd, since if its connected to the power input, should it not be supplying voltage?
Could someone clarify if its possible to use the 5V pin like a digital pin, and if so how?