I have my arduino feeding a digitalWrite(50, HIGH) to my transistors "Base" leg, and now i want that transistor to control a power supply for a relay, how would you guys wire that up ? . right now i collect the volt from the PSU and emit it to the relay, and on the other side of the relay i have a w…

Correct transistor wiring

system June 10, 2011, 8:35am 9

ok i made it work, i forgot to wire the minus side of the psu to the arduino ground.

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