# balloondogcaps/tr90pm ![balloondogcaps/tr90pm](https://i.imgur.com/AO5anzZh.png) A 3x3 Pro Micro enabled Macropad * Keyboard Maintainer: [Balloondog](https://instagram.com/balloondogcaps) * Hardware Supported: Balloondog Play Rough series case(s) * Hardware Availability: [Balloondog](http://store.balloondog.nl) Make example for this keyboard (after setting up your build environment): make balloondogcaps/tr90pm:default Flashing example for this keyboard: make balloondogcaps/tr90pm: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 2 ways: * **Physical reset button**: Briefly press the button on the back of the PCB. Some Pro Micro's require a double press. * **Keycode in layout**: Hold the bottom right key and then press the bottom left key to enter the bootloader