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LilyGO T-Deck Plus

By the end of this page you have a T-Deck Plus running Ratspeak that sends messages by radio, without internet.

Tier 0: no internet · Works without internet.

Draft: this page has not been checked on a real device yet, and its Farsi has not been reviewed. Use with care.

Before anything else, read Before you switch on a radio. This device is physical evidence, and radio transmissions can be located.

1. Buy

  1. A LilyGO T-Deck Plus, with keyboard, screen and LoRa radio.
  2. Frequency: the 868 or 433 MHz version, whichever the others in your group have. Every device in a group must use the same frequency and radio preset. Know your local law.
  3. A better antenna than the one in the box, with an SMA connector.

Never switch the device on without an antenna. Transmitting without one can damage the radio.

2. Install the firmware

Ratspeak Handheld works on its own (Standalone) or as the radio for a phone (RNode).

  1. On a computer with Chrome or Edge, open Ratspeak's download page: ratspeak.org/download.html
  2. Choose the T-Deck Plus and press "Flash in browser".
  3. Connect the device by USB. If it is not found: switch it off, hold the trackball, switch it on, then connect USB.

3. First start

  1. Choose Standalone mode.
  2. The device creates a Reticulum identity and asks for a display name. Do not use your real name.
  3. The default radio preset is Medium Fast. If your group uses another preset, use that one.

4. First message

  1. On the home screen, announce yourself.
  2. In Peers, choose someone and open a chat.
  3. Type and press Enter. A message is yellow while in transit and turns green once delivered.

5. When there is internet

In Settings, Propagation, AUTO mode connects the device to Wi-Fi/TCP nodes so messages can leave the mesh. The addresses are on Ways to connect.