Brad Lepinski
New member
I would like to use my Teensy 4.0 without the USB connected for power. I understand the Vin pin is limited to 5 volt input. If I wanted to use a wall power to convert AC to DC (5 volt), is there a maximum amperage I should stay below? Most items on Amazon will say 5 volt and 1 or 2 amps, but that seems like that would fry the board. Anyone have a recommendation?