Fox Red Labs / Builds / Networking
Send a sensor reading to Home Assistant over Wi-Fi
A sensor that reports over your Wi-Fi into Home Assistant.
Hardno timed run
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-EM-CC35X1: TI's MQTT example answered 720 of 720 requests, median 167 ms; not connected to Home Assistant
What to build next
Detect a person in a room with Wi-FiA board that reads the Wi-Fi in a room and says whether anyone is there
A DNS ad blocker on a Wi-Fi boardA board that answers 0.0.0.0 for ad and tracker names on your network
Blink an LEDThe board's LED blinks, then blinks the pattern you asked for in plain English
Every build. The code for all of them is in the GitHub repository.
Evidence and limitsTI's MQTT example answers a Mac in 167 ms median on the CC35X1; not in Home Assistant. Ran on 1 board. Results, sources, timing and limits.
Which boards ran it
- Could work LP-EM-CC35X1: TI's MQTT example answered 720 of 720 requests, median 167 ms; not connected to Home Assistant
Experiments (3)
| Status | What was tried | Result |
|---|---|---|
| Works | Does Wi-Fi provisioning over Bluetooth work on the TI LP-EM-CC35X1, and how long from power-up to joined? CC35X1, 2026-10-09 | TI's Wi-Fi provisioning over Bluetooth works without TI's phone app. A Mac script writing four Bluetooth characteristics took the board from reset to a Wi-Fi IP address in 16.5 to 17.8 s, 7.13 s of it after the... |
| Could work | Does TI's Wi-Fi CSI presence model on the LP-EM-CC35X1 detect a person in a room through the house Wi-Fi, and how well? CC35X1, 2026-10-09 | In a lived-in house the shipped model said "presence" in 98% of scored windows across 21 minutes. In the one phase with a known label, the room empty with the door closed, it said "presence" in 135 of 136 windows. It... |
| Works | Can an MCU-only thermostat work: a LaunchPad with an LVGL touch screen, a radar sending presence, and a Wi-Fi radio feeding Home Assistant? MSPM0 G3519, IWRL6432BOOST, CC35X1, 2026-10-10 | The screen half runs on live radar data: radar frame to panel in 111 ms median over 10 minutes with 2,310 frames and none dropped, on a two-page screen that also shows a Wi-Fi presence badge. The Mac sits in the radar... |
Source files
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-EM-CC35X1: folder
cc35x1/.- 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.