v1.1
2026-04-29
blue PCB
- changed ATtiny402SSF to ATtiny402SSN
- added a pull-up resistor on ATtiny UPDI pin to provide a defined level at all times
- added a clamping circuit on ADM3485E DE/RE to Vcc, to protect ADM3485E from 12V AVR UPDI programming
- added EMI filtering
- tightened connector footprint
- added paneling and prod.zip to Makefile


v1.0
2026-01-23
green PCB
Initial release
