ZMK is the recommended firmware as it's extremely customizable and was designed with wireless in mind. ZMK offers:
- Customizable keymap
- Use as a USB keyboard with either a dongle or one of the halves as the central (see details)
- Use as a Bluetooth keyboard
- Seamlessly switch between multiple Bluetooth devices (phones, tablets, computers, etc) using user defined keys
- Low power consumption and long battery life
A video will be uploaded in October 2021 demonstrating the firmware customization and upgrade process.
There are several other firmware options that users may decide to use at their own risk. The setup and configuration for these alternatives may require extensive programming and development knowledge.
Please note that QMK does not support nRF5, which is the family of microcontrollers that we use for our keyboards. While there are QMK forks with nRF5 support, we do not recommend them as they are very buggy and difficult for even experienced users to setup.