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- # Ploopyco Madromys Trackball
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- It's a DIY, QMK-powered trackball!
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- * Keyboard Maintainer: [PloopyCo](https://github.com/ploopyco)
- * Hardware Supported: RP2040
- * Hardware Availability: [Store](https://ploopy.co), [GitHub](https://github.com/ploopyco)
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- Make example for this keyboard (after setting up your build environment):
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- qmk compile -kb ploopyco/madromys -km default
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- # Building Firmware
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- 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).
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- # Triggering the Bootloader
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- [Do you see those two golden holes in the board](https://ploopy.co/wp-content/uploads/2023/11/boot.jpg)? Those are called **vias**. They act exactly like a switch does. Right now, that switch is OFF. However, if you take a paperclip or a pair of metal tweezers and touch those two vias, the two vias will form an electrical connection. Effectively, that switch turns ON.
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- Go ahead and connect the two vias, and then (while the vias are connected) plug in the Madromys board into your computer.
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- The computer should recognise that a mass storage device was just plugged in. Once this is done, you should be able to drag and drop files onto the Madromys board, as if the board was a USB drive. Feel free to remove the tweezers or paperclip at this point.
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- If you want to upload a new firmware file (a ".uf2" file, like "madromys_awesome_version.uf2" or something), just drag it into the folder, and it'll automatically install on the Madromys board and restart itself, in normal operating mode. You're done!
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- **TIP**: If your firmware is in some kind of strange state and uploading new firmware isn't fixing it, try uploading [a flash nuke](https://learn.adafruit.com/getting-started-with-raspberry-pi-pico-circuitpython/circuitpython#flash-resetting-uf2-3083182) to the Madromys board before flashing the new firmware. It wipes the memory of the Madromys board completely clean, which can help clear a few types of errors.
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- # Customizing your Ploopy Madromys
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- You can find customziation options [here](../readme.md).
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