Datasheet

3
Wire up
Don’t connect the Pico reversely
Observe an end with silk prints on the module and an end of USB port to
determine connection direction.
You can also depend on signals of pins and pins of Pico to determine connection
direction.
Programming download
Download via Raspberry Pi, open the Raspberry Pi terminal:
And
sudo apt-get install p7zip-full
cd ~
sudo wget
https://www.waveshare.net/w/upload/3/31/Pico_Servo_Driver_Code.7z
7z Pico_Servo_Driver_Code.7z -o./Pico_Servo_Driver_Code.7z
cd ~/Pico_Servo_Driver_Code
Click the example program to download directly