I’m new to Pi & BrickPi, I was having networking issues to setup the board, when I finally manage to connect the boards I ran to test with lego motors that where installed in a lego robot with NXT Brain and everything else - I end up mistakenly connecting two of the BrickPi motor ports to the NXT BRAIN, instead of the motors
Now, the two ports are not working. I’ve tested the other two ports and they are working fine. Any ideas of how to fix them (if there is a fix)?
Hey Alex, yes, there’s a relatively easy solution. You’ve just got to replace the motor chip that was affected; I think that should be the only part that got fried. The motor chip is a Texas Instrument chip, the part numbers are listed on this thread:
Hope the replacement goes easily!
i’ve just recieved the chip.
I’ve noticed that BrickPi has two of this chips. Which one should I replace?
The ports that are not working are A and B.
Hey Alexandre, you’ll need to replace the the chip that’s on the side of those two ports. If you’re replacing A&B’s chip, I’ve circled the chip you’ll need to replace in red on the attached diagram.
- Disconnect all power from the BrickPi before doing this.
- If you have wire cutters or snips, cut the motor chip out before you add a new one, and then heat up each of the pins to remove the remaining pins.
- If you have a desoldering pump or wick, use it to remove the solder from around the pins before you try to put the new one in.