I have the Mk.1 board. You cannot see the reverse of the board in the above photos. A trace runs from Pico Vsys to the jumper Vsys. This is a straight link; no components. This should not be used in the described configuration. The only other Pico links are GP 0 to 15 to the yellow servo control pins, and a ground connection which I have not yet spotted. So the Pico must be powered separately as stated above, either through the USB connection or Pico Vsys following the recommendations in the Pico documentation.
The Mk.2 board has moved the On-Off switch to a more sensible location, otherwise I am not sure much has changed. You can call it a cheap board if you want but it has worked reliably here for the last 2 years or so. The main thing is that it is current-limited as you have observed. 5 servos work reliably with simultaneous drive. I keep meaning to try 8 working together which is the maximum I think I would need.
The Mk.2 board has moved the On-Off switch to a more sensible location, otherwise I am not sure much has changed. You can call it a cheap board if you want but it has worked reliably here for the last 2 years or so. The main thing is that it is current-limited as you have observed. 5 servos work reliably with simultaneous drive. I keep meaning to try 8 working together which is the maximum I think I would need.
Statistics: Posted by dBerriff — Tue Jan 21, 2025 5:14 am