Hi,
I have 4 servos and 4 potentiometers hooked up to a arduino uno r3. When the servos are not connected, everything works just fine, but the more servos I connect, the more unstable the values of the potetniometers get and with 4 servos, they become practically unusable. Does anyone know how to fix this issue?
Thanks
Sounds like canonical sin #3 - powering any servo from the onboard 5V rail of an Uno or Nano is verboten, they draw way too much current and will definitely cause your symptom, and quickly damage your Uno.
Welcome! Please post an annotated schematic as you have it wired be sure to show all power supplies, and grounds. Links to technical information on the hardware items will also help. If you do not want to post the schematic, fine but expect a lot of time before your problem gets solved. Reason we be all guessing as to what is there. You can explain it but we cannot see it.
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