Still strange but it seems the root cause is the Raspberry Pi Imager (v1.8.5). I selected the device Raspi zero 2W and write the image, but if using the other imager, the symptom disappeared. Then I selected RPi 4 instead of Zero 2W. After installing pigpio related items, now I can control the servo motors as I'm expecting.
Statistics: Posted by sohonomura2020 — Tue Apr 02, 2024 7:55 am