Blinds - servos buzzing every so often

#1

As the topic suggests - using 2 blind controllers - both suffering the same issue (using HomeAssistant)

I haven’t managed to time the gaps between them, but they do not seem regular.
Every so often the blind servos will hum or buzz - no movement commands have been sent, so no idea why.

Reading online seems to suggest the signal line to the servos isn’t clean - so to either:

  1. clean it by writing more code not using a library (way out of my ability)
  2. keep the servos off until and MQTT command is received, turn them on, move and turn off (seems this is done in the V2
  3. put a capacitor across the servo

Anyone else got this issue?

#2

Are you using version 2?
The code already connects the servo before moving and then disconnected after.
Make sure the USB power adapter can supply enough current, I use 2 amp as I had similar problems using an adapter from a mobile phone