I have just received PCBs for a "HighVolgage" (12V) UPDI programmer featured here:
- See info at Arduino IDE-Compatible UPDI Programmer Allows for Safe ATtiny Configuration Experimentation
- Arduino Nano HV UPDI Programmer (GitHub) for the BOM, etc.
I have some spare pieces so if you need one please secure it until the stock lasts as I am not planning to get more. You can click-purchase (9,99 EUR + 4 EUR shipping) here :