weatheredscientist/weewx-rtldavis repository overview

⁠weewx-rtldavis

Dockerized weewx weather station for wireless Davis ISS using RTL-SDR dongle

A ready-to-run Docker container for a Davis Vantage Vue or Vantage Pro 2 weather station using an RTL-SDR USB dongle and weewx⁠. No Davis console or WeatherLink subscription required.

⁠What it does

• Receives data directly from your Davis ISS transmitter via RTL-SDR dongle
• Runs weewx to process and upload weather data
• Posts to Weather Underground (rapidfire), WOW, CWOP, and PWSweather
• Calculates and caches dewpoint across packets
• Optionally fetches pressure from Davis WeatherLink cloud API (free tier, once/hour)

⁠Requirements

• Davis Vantage Vue or Vantage Pro 2 ISS
• RTL-SDR Blog V3 dongle (or compatible RTL2838)
• Docker host with native Linux USB access (Synology NAS, Linux PC, Raspberry Pi)
• Note: WSL2 and VirtualBox USB passthrough do not work reliably with this dongle due to I2C timing issues

⁠Quick Start

⁠1. Pull the image

docker pull weatheredscientist/weewx-rtldavis

⁠2. Copy config out of image

mkdir -p ~/weewx-data docker run --rm -v ~/weewx-data:/backup weatheredscientist/weewx-rtldavis cp -r /opt/weewx-data/. /backup/

⁠3. Edit configuration

Edit ~/weewx-data/weewx.conf and set:

• Station location, latitude, longitude, altitude
• Weather Underground station ID and key
• WOW, CWOP, PWSweather credentials as needed

⁠4. Run

docker run -d --name weewx-rtldavis --privileged --restart unless-stopped -v /dev/bus/usb:/dev/bus/usb -v ~/weewx-data:/opt/weewx-data weatheredscientist/weewx-rtldavis

⁠Optional: Pressure via Davis WeatherLink API

If you have a Davis WeatherLink account (free tier), you can fetch pressure once per hour. Add this to weewx.conf: [DavisPressure] api_key = YOUR_API_KEY api_secret = YOUR_API_SECRET station_id = YOUR_STATION_ID fetch_interval = 3600

Get your free API credentials at weatherlink.com⁠ → Account → Generate v2 Token.

To find your station ID, use the Davis v2 API stations endpoint with your credentials.

⁠Synology NAS Notes

Plug the RTL-SDR dongle directly into a USB port on the NAS. No driver installation needed — the container handles everything.

⁠License

GPL v3