3 ms·

I built a similar thing last year affectionately named "Sniffer"[0]. My build uses the newer PMSA003. * Uses an ESP32 + ESPHome + PMSA003 + BME680. * Data co

I built a similar thing last year affectionately named "Sniffer"[0]. My build uses the newer PMSA003. * Uses an ESP32 + ESPHome + PMSA003 + BME680. * Data collection is via MQTT -> HomeAssistant -> InfluxDB -> Grafana. * Software and PCB design files are on Github[1]. Looks like adding the SenseAir CO2 module would be trivial with ESPHome[2] [0] https://blog.kylemanna.com/hardware/sniffer-air-quality-monitor-aqi-using-esp32-pmsa003-bme680/ https://blog.kylemanna.com/hardware/sniffer-air-quality-moni... [1] https://github.com/kylemanna/sniffer https://github.com/kylemanna/sniffer [2] https://esphome.io/components/sensor/senseair.html https://esphome.io/components/sensor/senseair.html

abraae 5y ago
Nice. I chose the TTGO Display for my project to measure levels in my water tanks. It's a great board, though the ADC is rubbish. Unfortunately prices are on the move now (presume the chip shortage) and they now cost 2x what they were a few weeks ago.
ahaucnx 5y ago
Nice project! How was your experience with the PMSA003? We used it before but believe that the PMS5003 has more stable readings and a longer life time.
- 2bluesc 5y ago
  Never bought a PMS5003, couldn't find any real data suggesting it was better. The only indication I had was the PMSA003 was newer, so I ran with it. I've had one running 24/7 for 9 months now with no issues. I checked the accuracy outdoors relative to PurpleAir sensors in the area and they were with a percent or two which was pretty close for such a simple experiment.
jfim 5y ago
Haha, did something similar too, except it logs to a server written in Elixir and has a Phoenix live view dashboard, which I check on an eink display and on my phone. Data is also logged to CSV at 1Hz and can be analyzed in R. Code is also on GitHub. https://blog.jean-francois.im/2021/05/08/building-a-simple-air-quality-monitor/ https://blog.jean-francois.im/2021/05/08/building-a-simple-a... https://github.com/jfim/air-quality-server https://github.com/jfim/air-quality-server https://github.com/jfim/air-quality-monitor-firmware https://github.com/jfim/air-quality-monitor-firmware
jfim 5y ago
Nice compact board, by the way, and it's pretty cool that you got it working with grafana!

abraae 5y ago

Nice. I chose the TTGO Display for my project to measure levels in my water tanks. It's a great board, though the ADC is rubbish. Unfortunately prices are on the move now (presume the chip shortage) and they now cost 2x what they were a few weeks ago.

ahaucnx 5y ago

Nice project! How was your experience with the PMSA003? We used it before but believe that the PMS5003 has more stable readings and a longer life time.

2bluesc 5y ago
Never bought a PMS5003, couldn't find any real data suggesting it was better. The only indication I had was the PMSA003 was newer, so I ran with it. I've had one running 24/7 for 9 months now with no issues. I checked the accuracy outdoors relative to PurpleAir sensors in the area and they were with a percent or two which was pretty close for such a simple experiment.

jfim 5y ago

Haha, did something similar too, except it logs to a server written in Elixir and has a Phoenix live view dashboard, which I check on an eink display and on my phone. Data is also logged to CSV at 1Hz and can be analyzed in R. Code is also on GitHub. https://blog.jean-francois.im/2021/05/08/building-a-simple-air-quality-monitor/ https://blog.jean-francois.im/2021/05/08/building-a-simple-a... https://github.com/jfim/air-quality-server https://github.com/jfim/air-quality-server https://github.com/jfim/air-quality-monitor-firmware https://github.com/jfim/air-quality-monitor-firmware

jfim 5y ago

Nice compact board, by the way, and it's pretty cool that you got it working with grafana!