Optional. Set proper command for your controller, bootloader and programmer. This command can be used with `make program`. Not needed if you use `FLIP`, `dfu-programmer` or `Teesy Loader`.
### 3. Programmer
Optional. Set proper command for your controller, bootloader and programmer. This command can be used with `make program`. Not needed if you use `FLIP`, `dfu-programmer` or `Teesy Loader`.