Romi Chassis stopped working

Hi, so I have the romi chassis 32u4, and it has been working pretty well in the past, I had code that would make the robot run a maze and it worked fine, except now it doesn’t work anymore. Last week it was being transported, and it was in very cold weather (below zero) for about 3 hours, I used the robot at the competition and at first it didn’t work, but somehow I got it to work and it ran and did the code as planned. The problem is after another 3 hours in the cold back home, the robot doesn’t seem to work anymore. When I run code to make it go forward, only the left motor moves a little, and there is also resistance, the right motor didn’t do anything. I tried switching the motors, and again only the left motor moved a little. So I’m assuming there isn’t any problem with the motors, and it’s instead a hardware problem. I then checked the soldering and non of it seemed out of place or broken. Could the time in the cold have broken my baseboard? Is there any way to fix this issue, or will I need another baseboard? Or is it possible to test it out in some other way to find the exact problem? If you would like a video or more information of the robot’s behavior I can send it, but I’m just a little confused on the exact issue with my robot. Any help is appreciated! Thanks!

Hello.

I moved your post to the robot support category.

It sounds like your Romi 32U4 Control Board is still able to run programs. Could you try the example programs from our Romi Arduino library and let us know which ones do not work as expected?

If the only task any of the programs have trouble with is driving the motors, then I would recommend removing the motors from your robot and testing them independently by connecting them directly to a power supply. Similarly, you can test the control board separately from the motors by removing the motors and monitoring the voltage on the motor driver output pins.

Pictures of the robot control board and the motors, as well as videos showing any unusual behavior you see while testing the example programs would also be helpful.

- Patrick