Look up the chips on the board. One should be a voltage regulator that converts 12V to 5V. Check the regulator to see if it is working.br0dy519 wrote: 29 Nov 2021, 21:00 Still looking for someone to donate 5 min of their time and let me know when that relay gets 5V to the coil.
As I said above, the boards are not all the same. There is no way anybody can know which one you have and what parts it is built with. That why I ask for a high resolution image of your board.