UNU R4 Minima - servos vibrating when plugged, but not receiving code or performing movement

Official Hardware UNO Family UNO R4 Minima
1

I bought a new UNO R4 Minima to replace a Arduino Pro Mini, which I have used to control movements of a robotic hand driven by 5 servos. When I try to upload the previously used code to the new UNO R4 Minima, the servos are vibrating but it does not perform the movements previously generated by the code. What could be the problem?

I have tried the following:

  • installed newer software (Arduino IDE) which seems to connect to the board but doesn't succeed uploading code.
  • tried using a different USB-c cable and port but same result.

I have plugged the new controller as I plugged the previous one and tried to use the same code, which used to function well except some glitch in the soldering of the cords. Do I need to change the code to get it working on the UNO R4 Minima?

Thanks in advance,
L

2

Read the pinned post re 'How to get the most from the forum', then show us the code and the wiring diagram the way the pinned post instructs.

3

Most common question with problems like this:
How do you power the servos.
Leo..

4

Try a power source with several times the amperage of your current one. If that does not solve it then post an annotated schematic showing exactly how you wired it including power sources, grounds and power connections. Also post links to technical information on the hardware items and your code which since you read the guidelines you will cue code tags.