M5Unit_Roller CAN Bricked.
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Hi all,
after some test, Unit_Roller stops to work. now the motor doesn't move, the display say: E:4 Over Range. I can't make any selection in the config menu (there are missing items in the menu and no way to move the selection from "Quit").any tips to reset and clear the error?
best regards
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nobody?
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@cepics said in M5Unit_Roller CAN Bricked.:
Unit_Roller
Greetings,
I have no experience with this device but I did find this link that deals with the Roller Can firmware:
https://github.com/m5stack/M5Unit-RollerCAN-Internal-FW
Do you have other Roller Cans to verify operation?
Other trouble-shooting tips: (please remember, I have ZERO experience with this device but if I did this is what I would do)
- remove all unnecessary devices/connections
- verify that the power supply is still operational (measure voltages with a DVM) when connected
I hope you can get this operational again with a firmware update/reset-Brian
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Can you still communicate with the Roller? Then you can disable the Motor Over Range Protection.

If this doesn't work and you restart (disconnect the motor and the controller for at least 1 minute) and the motor isn't blocked, you can try manually turning it back. If the motor is blocked, you can try lowering the current or voltage so that the motor loses power while the electronics continue to function.