Is it a plug to use module? cause when i attempt to do so, there is no voltage at the output. is jumper wiring required to make this thing
work?
From what I can see there are two removable jumper pins on each output to select whether you want 3.3 volts or 5 volts..You must select what you want.. Center position is no voltage, either left or right selects what you want.No external wiring should be needed..Just power it with either USB or a 9volt dc walwart and you should be good to go once you do the above.
The second question I will leave to others to answer..
Goodluck,
jolphil