benny_profane
Well-known member
What is the 47k resistor on the earlier rev of the board doing? It seems like that's the only circuit difference (beside the addition of the channel switching functionality in the newer boards). Also, what is the approximate voltage output and current limit for pin 5? I'd like to drive an LED indicator from that, but I wanted to check to see if making an LED daughterboard and using the NPN switch would be a better way to go.