Minimizing Digital Pins Used on Pololu DRV8825

Hi, can I attach MS1, RESET, and SLEEP to one digital pin on the Arduino? How much current is necessary to drive those 3 HIGH?

Right now I have pin 7 connected to both SLEEP and RESET and it appears to work… can I go ahead and solder in MS1 too? How about MS2 too?


The Arduino’s digital outputs can each comfortably source/sink up to around 20 mA, so one output should have no problem driving four of those pins simultaneously. You should also be able to connect MS1 and MS2 permanently to VCC, but if you find it more convenient to connect them to the Arduino, that is fine as well.