62 lines
1.9 KiB
Markdown
62 lines
1.9 KiB
Markdown
This is an MQTT sensor to send NOAA space weather data to Home Assistant. Fetching the data requires a login to NASA's
|
|
EarthData which is done through Selenium and the Chrome browser.
|
|
|
|
|
|
|
|
## Install
|
|
|
|
1. Create an account at <https://urs.earthdata.nasa.gov>
|
|
2. `pip install -r requirements.txt`
|
|
3. `sudo apt-get install p7zip-full redis-server`
|
|
4. `sudo apt-get install dvipng texlive-latex-extra texlive-fonts-recommended cm-super`
|
|
5. `sudo systemctl enable --now redis-server`
|
|
|
|
### Google Chrome
|
|
|
|
If you don't have Google Chrome installed (used to log into the NASA site), here's how to install it.
|
|
|
|
```shell
|
|
wget https://dl.google.com/linux/direct/google-chrome-stable_current_amd64.deb
|
|
apt install ./google-chrome-stable_current_amd64.deb
|
|
```
|
|
|
|
## Run
|
|
|
|
The lat/lon range is used to pick the region of the planet for generating statistics, for example your home state. To
|
|
|
|
```shell
|
|
LAT_RANGE_MIN=<lower range for lat bounding box> \
|
|
LAT_RANGE_MAX=<upper range for lat bounding box> \
|
|
LON_RANGE_MIN=<lower range for lon bounding box> \
|
|
LON_RANGE_MAX=<upper range for lon bounding box> \
|
|
CDDIS_USERNAME=<username> CDDIS_PASSWORD=<password> \
|
|
MQTT_BROKER_HOST="<Home Assistant IP>" MQTT_BROKER_PORT=1883 MQTT_USERNAME="user" MQTT_PASSWORD="<password>" \
|
|
python3 mqtt.py
|
|
```
|
|
|
|
Example systemd service files are provided.
|
|
|
|
### Home Assistant MQTT Config
|
|
|
|
```yaml
|
|
mqtt:
|
|
- state_topic: "space-weather/vtec"
|
|
name: "VTEC"
|
|
unit_of_measurement: "(10^16 el) / m^2"
|
|
state_class: measurement
|
|
unique_id: space_weather_vtec
|
|
```
|
|
|
|
## Data
|
|
|
|
### VTEC
|
|
|
|
<https://www.spaceweather.gov/products/us-total-electron-content>
|
|
|
|
Unit: `(10^16 el) / m^2`
|
|
|
|
VTEC, or Vertical TEC, is a specific type of TEC measurement that is taken along a path extending
|
|
vertically from the Earth's surface to the edge of the atmosphere. Essentially, VTEC is a subset of TEC, with the
|
|
difference lying in the specific path along which the measurement is taken.
|
|
|
|
Updated hourly. |