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gcormier / esphome-pressure

esphome board with a differential pressure sensor, supporting a variety of power sources
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Feature suggestions: Expose GPIO #6

Open jmtorres opened 1 month ago

jmtorres commented 1 month ago

A few additional features would make this an amazing All in one Air Handler monitoring device:

  1. 1-wire interface to connect DS18B20, DHT22, and other Temperature and/or Humidity sensors.
  2. Optocoupled / isolated 24VAC inputs to monitor float switches and call status.
  3. Relay outputs to override thermostat.

I had originally planned to use an older Shelly UNI board which can handle 24vac power and 2x 24vac inputs. However, it'd be missing the pressure sensor.

Some inspiration: https://www.youtube.com/watch?v=Hv6urCTRV70

gcormier commented 1 month ago

I've got a couple of the foundational pieces already, so perhaps a project for winter 24/25. Relay outputs does not interest me since they must be a dime a dozen from Ali. I wonder if there are any sort of module standard pinouts for these.

https://github.com/gcormier/esphome-humitemp https://github.com/gcormier/espairqual https://github.com/gcormier/esptemp8c

jmtorres commented 1 month ago

The relay output hasn't been high on my list for this project, but the others are essential in my book. If the a esptemp8c had the differential pressure sensor and some 24vac capable inputs, that would be an ideal device.

I have a few PMS sensors running on AirGradient and ESPHome. Have you used them within or near an air handler? I'm under the impression that it's not ideal near turbulent air.

gcormier commented 1 month ago

I'm not a big fan of the PMS sensors. I've have much better results with the Panasonic GCJA. I have two in my ducts and they work great. Both are designed for industrial equipment monitoring so perhaps that helps?