# sweet16v2 A 4x4 macropad with RGB inswitch lighting and underglow. * Keyboard Maintainer: [ziptyze](https://github.com/ziptyze) * Hardware Supported: 1upkeyboards Sweet 16 v2 * Hardware Availability: [1upkeyboards](https://1upkeyboards.com/) Make example for this keyboard using an atmel-based controller (after setting up your build environment): make 1upkeyboards/sweet16v2/promicro:default Flashing example for this keyboard using an atmel-based controller: make 1upkeyboards/sweet16v2/promicro:default:flash Make example for this keyboard using an rp2040-based controller (after setting up your build environment): make 1upkeyboards/sweet16v2/kb2040:default Flashing example for this keyboard using an rp2040-based controller: make 1upkeyboards/sweet16v2/kb2040:default:flash See the [build environment setup](https://docs.qmk.fm/#/getting_started_build_tools) and the [make instructions](https://docs.qmk.fm/#/getting_started_make_guide) for more information. Brand new to QMK? Start with our [Complete Newbs Guide](https://docs.qmk.fm/#/newbs). ## Bootloader Enter the bootloader in 3 ways for atmel-based controllers: * **Bootmagic reset**: Hold down the key at (0,0) in the matrix (usually the top left key or Escape) and plug in the keyboard * **Physical reset button**: Briefly press the button on the back of the PCB - some may have pads you must short instead * **Keycode in layout**: Press the key mapped to `RESET` if it is available Enter the bootloader in 2 ways for rp2040-based controllers: * **Bootmagic reset**: Hold down the key at (0,0) in the matrix (usually the top left key or Escape) and plug in the keyboard * **Bootsel button**: Hold the bootsel button on controller and plug in the keyboard