497 B
497 B
v2
same USB type-A plug form factor. change MCU to STM32F042 since it provides read out protection.
v1
smaller form factor. fits in USB type-A port. uses CH32V203 as it is smaller, cheaper, and requires less external parts (DP pull-up, crystal).
issues:
- USB pins are mirrored
v0
this is a large development board. it accepts the classical STM32F103 (which I'm more familiar with), and CH32V203 (cheaper). it has a proper debug port and buttons.
issues:
- USB pins are mirrored