purpleair2mqtt
rtldavis
| purpleair2mqtt | rtldavis | |
|---|---|---|
| 2 | 2 | |
| 3 | 16 | |
| - | - | |
| 2.9 | 0.0 | |
| 12 months ago | about 8 years ago | |
| Go | Go | |
| MIT License | GNU General Public License v3.0 only |
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purpleair2mqtt
-
The Hidden Cost of Air Quality Monitors
They may be referring to the changes to PurpleAir API [0] that introduces paid requests that you can rip through quickly when doing large scale analysis.
In the United States, AirNow.gov includes most PurpleAir sensors, although they are annotated differently than “higher quality” sensors (I was going to say than government sensors, but here in Connecticut, the state has a number of PurpleAir monitors deployed and rapidly deployed more when stuff got bad due to Canadian wildfires a few weeks ago).
Fortunately, for local users, you can hit your own sensor and grab the data however often you want. I even wrote a tool to help out and drop it into influxdb and post it to MQTT[1]. They still support local fetching of data. However, many default integrations from tools like Home Assistant could be affected as they use the cloud integration.
[0] https://community.purpleair.com/t/api-pricing/4523
[1] https://github.com/pridkett/purpleair2mqtt
- Monitoring My Weather at Home
rtldavis
-
Monitoring My Weather at Home
Looks like you can skip the logger and get a cheap rtlsdr to log data wirelessly (using e.g. https://github.com/bemasher/rtldavis).
A cheaper still route would be to grab the outdoor sensors for a weather station supported by [rtl_433](https://github.com/merbanan/rtl_433) (or receive signals from a neighbor!)
- Davis UV / Solar (and ISS) output signal (protocol)?
What are some alternatives?
openaq.org - The OpenAQ website
ambient2mqtt - A simple program to take weather data from an Ambient Weather sensor and forward to MQTT and influxdb
community-airmonitor - Miller Beach / NWI air quality monitor using PurpleAir PM sensor, tracking PM2.5, PM10, weather, traffic congestion, trains in "The Region", etc. built in node.js/express.js, updated every 15 minutes.
rtl_433 - Program to decode radio transmissions from devices on the ISM bands (and other frequencies)