UPDI-dat
https://create.arduino.cc/projecthub/john-bradnam/create-your-own-updi-programmer-1e55f1
power supply setup
3.3V + 3.3_jump
official programmer
- ateml ICE
tuto - self made arduino nano as UPDI programmer
- https://www.instructables.com/Arduino-Nano-1/
Common Programmer in Arduino
Support
Demo
- https://t.me/electrodragon3/45