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The Dactyl Lynx Keyboard - RMK Firmware

Keyboard firmware for the Dactyl Lynx keyboard using RMK. (with Vial support, written in Rust)

Building the Firmware

Before building for the first time, make sure cargo-make is installed, and update dependencies:

cargo install --force cargo-make
cargo update

To build the firmware:

cargo build --release
cargo make uf2 --release

This will create rmk-central.uf2 and rmk-peripheral.uf2 in the root of the project.

Flashing to the Keyboard

Plug in the left side of the keyboard while holding the Boot button

Double-tap the RST button on the RP2040 to enter bootloader mode. Mount the USB storage device if needed, then copy the appropriate uf2 file to the device, for example by dragging the file to the new USB disk.

For the left side, copy rmk-central.uf2; for the right side, copy rmk-peripheral.uf2.