I'm having a problem with a fresh build of a Blue Dot ROV. I've got everything hooked up and running, but one of the motor drivers (the left side) won't reverse direction on either motor. Vertical only spins one way whether I push the controller up or down, horizontal only spins one way whether I push the controller forward or back. The right side behaves normally. Watching the cytron's lights, I see that the right side lights up M1A for up, M1B for down, M2A for forward, M2B for reverse. But the left side only lights up M1B for either up or down, M2B for either forward or reverse. The jumper connections all appear to be in the right places.
If I disconnect DIR1, the vertical control only lights up M1A in both directions. If I disconnect DIR2, the horizontal control only lights up M2A in both directions. So there must be some sort of connection there, because it lights up B when connected. But somehow the Pi is not telling the Cytron the proper direction and is sending the same signal no matter what. Any idea what's going on?
Thanks for the update. Good to hear it is all running! Hopefully I will be doing the same soon :-)