This is a config to run a 3dprinted keyboard controller with qmk based on this project:
https://sites.google.com/view/alvaro-rosati/azeron-keypad-diy-tutorial
Some additional and redesigned files (i.e. for the OLED-display) can be found here:
https://github.com/9R/replicazeron
Currently configs for STM32F103 and atmega32U4 are available, but STM32 is recommended, since the atmega may run out of flash with all features enabled.
With minor adjustments to Pinconfig it should be possible to use other MCUs that are supported by QMK
Full schematics can be found in this repo:
https://github.com/9R/replicazeron_schematics
| 0 | B1 | 15 | B15 | red | | 1 | B3 | 14 | A8 | blue | | 2 | B2 | 16 | A9 | yellow | | 3 | B6 | 10 | A10 | brown | | 4 | B5 | 9 | A15 | orange | | 5 | B4 | 8 | B3 | green |
| 0 | C6 | 5 | A7 | white | | 1 | D4 | 4 | A6 | grey | | 2 | D7 | 6 | A5 | violet | | 3 | E6 | 7 | A4 | grey | | 4 | F7 | A0 | B4 | white |
| GND | GND | GND | white | | VCC | VCC | VCC | red | | F4 | B1 | VRx | brown | | F5 | B0 | VRy | yellow| | | | SW | blue |
| GND | GND | GND | white | | VCC | VCC | VCC | red | | D4 | B10 | SDA | green | | C6 | B11 | SCL | yellow|