Fox Red Labs / Builds / Smart home and radio

Join a Thread network

A Thread device on the chip itself: it forms or joins a network.

Hard

No recorded steps

Some pieces of it have run. There are no recorded steps for this project, so this page does not give any.

What exists:

LP-CC1354P10-1: Formed its own Thread network and became leader in 6 to 10 s; full device uses 427 kB of flash and 94 kB of RAM
LP-EM-CC2755P10: Full Thread device became leader of a new network 12 s after start (one run)

Errors and fixes: LP-CC1354P10-1.

What to build next

Build a Thread border router from two chips, with no LinuxThread devices reaching the home network through two small chips and no Linux computer

Switch a board's LED from Home Assistant over ZigbeeThe board's own LED, switched on and off from Home Assistant

Add a low-power temperature sensor to Home AssistantA low-power Zigbee sensor that sleeps between readings and shows up on your dashboard

Every build. The code for all of them is in the GitHub repository.

Evidence and limitsA Thread device forms a network on the CC1354P10 and the CC2755P10; the CC2340R5 is 7.5 kB of RAM or more short. Ran on 2 boards. Results, sources, timing and limits.

Which boards ran it

Works LP-CC1354P10-1: Formed its own Thread network and became leader in 6 to 10 s; full device uses 427 kB of flash and 94 kB of RAM
Works LP-EM-CC2755P10: Full Thread device became leader of a new network 12 s after start (one run)

Experiments (1)

Status	What was tried	Result
Not for this chip	Can the TI LP-EM-CC2340R5 run Thread as an end device or router on its own? CC2340R5, 2026-10-05	Fails to link with TI's configurations and this repo's toolchain: each Thread node build was 7.5 kB to 23.8 kB short of RAM, depending on build options. All link on the 64 kB CC2340R53; not run.

Source files

Thread (OpenThread) on the LP-CC1354P10-1 (CC1354P10-1)

Get the code and tell us how it wentThe clone command, the board folder with its AGENTS.md, reports from others, and the three report forms.

Get the code

Clone the repository and open the board's folder below. AGENTS.md is a plain text file of notes for AI coding assistants, and llms.txt at the root indexes the site for one.

git clone https://github.com/Fox-Red-Labs/fox-red-labs.git

LP-CC1354P10-1: folder cc1354p10/.
- README: the board's lab notebook (what was run, in order)
- Notes for an AI coding assistant working in this repository: notes for an AI assistant; copy it into your own project if you use one
- FAQ: errors and fixes
The other 1 board folder
- LP-EM-CC2755P10: folder cc2755p10/.
  - README: the board's lab notebook (what was run, in order)
  - Notes for an AI coding assistant working in this repository: notes for an AI assistant; copy it into your own project if you use one
  - FAQ: errors and fixes

Code is BSD-3-Clause, writing is CC BY 4.0; third-party folders keep their own licenses.

Built it? Tell us

Built this, or got stuck? Report it on GitHub with a few short answers. Your report shows here in your words, marked as yours. A failure that repeats on the bench gets its fix here.

Share a projectWhat you built or ported, what it runs on, a photo or a clip, and anything that did not work.Report a problemThe step, the exact error text, your tool versions. Once it repeats on the bench, the fix goes on the page.A prompt that workedWhat you typed and what came out.