OpenEPaperLink
Open EPaper Link is an alternative firmware and protocol for the ZBS243-based Electronic Shelf Labels - ESL price tags by Solum
If you want to find the source of it, you can find it on GitHub:
If you want to get started and have the reqired hardware, you can Install it right here:
Most of the information required to get started can be found in the Github Wiki
If you have more questions or want to contribute to this project you can join the: