- Sat Mar 20, 2021 10:19 pm
#49176
Hi all I took the darlington uln2803a to control the pump relay on my v4.4b board but I can't get the 5v signal to drive the transistor.
When the pump turns on the PIN16 of the proto area is shorted to ground, but if I have to put a transistor, what sense does this have?
Does this mean that the PIN16 on this card is high current?
From output 45 of arduino come out 5 volts and I would not like to wildly solder a wire on this pin.
Thanks for the reply in advance !!!
When the pump turns on the PIN16 of the proto area is shorted to ground, but if I have to put a transistor, what sense does this have?
Does this mean that the PIN16 on this card is high current?
From output 45 of arduino come out 5 volts and I would not like to wildly solder a wire on this pin.
Thanks for the reply in advance !!!