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Press a keyboard key or gamepad button

M8 Display

This is a display for the M8 Headless firmware running on a Teensy 4.1, or a real M8 device. You can use keyboard and gamepad input or use on-screen controls. Where possible, the audio output from the M8 is routed to your default audio output device. Firmware can be installed and updated from the menu.

By default the arrow keys on your keyboard map to the arrow keys on the M8. Shift is Left Shift, Play is Space, Option is Z, and Edit is X. These control mappings and other settings can be configured from the menu.

A virtual keyboard from A to ' lets you send MIDI notes. Use -/= to change octaves and [/] to change velocity.

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Source code and more details are available at