IBM Model M Keyboard conversion to combined USB/BLE device using RetroBle device framework.
- Original Portuguese PT-PT layout
- All keys working including Pause/Break
- Indicator lights NumLock and CapsLock working correctly
- ScrollLock light used as On/Off light (dimmed when in BLE mode)
- RetroBle - USB/BLE device framework.
- Template I2C - I2C host and driver abstraction.
- MCP23017_RT - MCP23017 I2C driver


