This firmware is currently work in progress. It's for you to play with if you want. There is no guarantee of any functionality.
Clone the repo
git clone https://github.com/dustybee/HanshowESL.git
Change directory to Firmware/src
cd HanshowESL/Firmware/src
Build the project with Make
make all
The build bin file will be available in the Firmware directory.
Flash the firmware to the ESL via this handy web-based flasher!