Why not Vout?
According to NodeMCU internal schematic, the Vin pin is connected directly to the 5V power from the USB Socket.
@darthbonk57 is powering the circuit through USB, so Vin pin should be 5V and the "lamp" or led or whatever should light.
Why not Vout?
According to NodeMCU internal schematic, the Vin pin is connected directly to the 5V power from the USB Socket.
@darthbonk57 is powering the circuit through USB, so Vin pin should be 5V and the "lamp" or led or whatever should light.
