I am controlling a stepper motor driver and the current required on the digital inputs of the stepper driver is around 11mA (at 5V). My USB-6001 is not capable of outputting that high of a current. I have seen people using the ULN2003A to control relays and it looks like it should work for my application. Will this work and then can I use the 5V output to go to the ULN2003A since it can output 150mA. To wire up the ULN2003A would I use the 5V output and put the positive on the COM?
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