At present, none. I donāt believe the protocol details have been published, so someone would have to reverse engineer how it works by monitoring the I2C communication between Tete and Tetrapad. If the message formats become documented Iām sure someone with the relevant devices will add support to crow, Teletype, or other modules.
The most comprehensive reference for what devices are supported by monomer modules is probably their source code, for instance crowās i2c descriptor files or Teletypeās op code. There is also generated documentation for these but the code is a useful way to see whatās available at a glance.