TELEX firmware (TXo, TXi)
Firmware for TELEXo / TELEXi (TXo, TXi) (Brendon Cassidy (bpcmusic))
Open firmware for the TELEXo output and TELEXi input expanders for Teletype, an Arduino/Teensyduino project loaded onto the module's Teensy 3.2 or 3.6 with Teensy Loader.
- Distribution
- Prebuilt image you flash yourself
- Requires stock
- TELEXo or TELEXi module with a Teensy 3.2 / 3.6
- License notes
- Software is MIT (software-license.txt). Hardware files are CC-BY-SA-4.0.
- Source
- github.com https://github.com/bpcmusic/telex
- Homepage
- llllllll.co https://llllllll.co/t/a-teletype-expander/1379
- platform
- i2c
Description
The repository holds the TELEXo and TELEXi sources, hardware files and a command reference. Releases attach prebuilt hex files per module (the v.022A release covers TELEXo and TELEXoPlus). The README says to overclock a Teensy 3.2 to 120 MHz and a 3.6 to 180 MHz when compiling, and not to power the module while the Teensy is on USB. The last release is from September 2021.
Install notes
Open the module's hex in Teensy Loader with the Teensy connected to USB and the module unpowered.
Version history
| Version | Date | Notes |
|---|---|---|
| v.022 | 2021-09-18 | GitHub pre-release; restores pulse width for square waves (tested on TELEXo Plus). |
| v.021 | 2018-03-02 | GitHub pre-release. |
| v.018 | 2017-12-03 | Latest release not marked pre-release. |