The Themis is Acheron Project's open-source, freely available tenkeyless (TKL) keyboard Printed Circuit Boards (PCB) which features:
In order to flash this PCB, first build the default layout (after setting up your build environment):
make acheron/themis/<revision>:default
After building or downloading the firmware, put the PCB into DFU mode by holding the reset button for at least five seconds and upload the firmware onto the microcontroller through a utility like dfu-util
or QMK Toolbox. Alternatively, you can build and flash using:
make acheron/themis/<revision>:default:flash
See the build environment setup and the make instructions for more information. Brand new to QMK? Start with our Complete Newbs Guide.