# ADM42 ![ADM42](https://i.imgur.com/pviCQSQh.jpeg) A compact ergonomic 40% ortholinear keyboard. [More info on ADM42.dev](https://adm42.dev) * Keyboard Maintainer: [Lorenzo Leonini](https://github.com/lleonini) * Hardware Supported: ADM42 * Hardware Availability: [Shop](https://shop.adm42.dev) Make example for this keyboard (after setting up your build environment): make adm42:default Flashing example for this keyboard: make adm42: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: * **Keycode in layout**: Press the key mapped to `RESET` if it is available * **Bootmagic reset**: Hold down the key at (0,0) in the matrix (the top left key) and plug in the keyboard * **Physical reset button**: Briefly press the button on the back of the PCB