Looking to buy some Altoids tins with different designs. Currently you can only get red peppermint ones in the uk. Cheers Justin

Thanks for the reply, to test the voltage do you simple do the same but turn the dial to 20v?

How do you actually test the 5V going from the D1 to the two GPIO puns? 1. Do you use simply use the multimeter touching the D1 with one probe and the other probe on one of the pads on the far right? 2. Does it have to be powered by the raspberry pi? Sorry for the silly question, very new to buildin...