This repo has the code for my very extended reverse engineering effort for the Sainlogic WS-0835 weather station.
For a more detailed breakdown of this project, see the blog post https://www.robopenguins.com/weather-station/
Broadly this effort had two parts:
- Log data with an SDR and reverse engineer the 433MHz wireless protocol
- Tap into the data received at the display and publish it over WiFi
I logged the 433.92MHz transmissions with and SDR and created the sdr_analysis1 and sdr_analysis1 notebooks to capture the analysis.
I ended up figuring out most of the fields as covered in the blog post.
I then created the GNURadio module in gr-sainlogic to decode the data in realtime.
See https://www.robopenguins.com/weather-station/ for details, but I connected a NodeMCU WiFi board to the data stream received by the weather station display.
The firmware is the PlatformIO project for capturing the data and publishing it over MQTT.
I then created the scripts in client to log the results and publish them to Weather Underground.