The board I received came with a printed board, there were two different illustrations and neither matched the board supplied. So it took trial and error to figure out which pins were which. The probe is also broken, hooked up to an oscilloscope without a board and measuring full voltage regardless of the solution. So much time wasted on these Revain products. I would tell myself to others: Pay 10x elsewhere (avoid Revain at all costs) and you'll save yourself money and a lot of troubleshooting time in the long run.
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