This contains the 2048 game implemented on a stm32 smart knob off AliExpress.

More importantly, it shows:

• use of Embassy HAL for STM32
• a testable project structure
• using EXTI and SPI peripherals
• setup for RTT debugging

• /docs - Contains docs for the smart knob hardware.
• /app - The microcontroller independent game logic.
• /stm32 - Implementation of the game with STM32 hardware.

• cargo run - From within the stm32 folder, this will build and flash the game to the smart knob with debug output.
• cargo test - This will run the tests in the app folder.