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Topic: 2.5-12V 4-Channel HG7881 DC Stepper Motor Driver - Issue with MotorD (Read 884 times) previous topic - next topic


I recently bought a 2.5-12V 4-Channel HG7881 DC Stepper Motor Driver Controller Board for Arduino from eBay. All the 3 connectors are working fine that is they can make the motors rotate in either directions. But the motorD connection can only turn on one direction. what could be the issue here?


Check for solder bridges or other poor workmanship.

Double check YOUR wiring from start to finish.

If everything else checks out OK and you didn't accidentally fry it in some way then it was bad from the word go.

I have two on order and they should be here any day. Almost always worth double up on anything from China but for the most part have been pleasantly surprised by how well almost all of it has worked.

It may not be the answer you were looking for but its the one I am giving based on either experience, educated guess, google (who would have thunk it ! ) or the fact that you gave nothing to go with in the first place so I used my wonky crystal ball.

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