wshealy
Full Member
Posts: 187
Raspberry Pi: Yes
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Post by wshealy on May 6, 2021 8:26:23 GMT -8
  Is it practical to add a BME280 to WS-AQI? It seems BPI is the only thing left on my Sky2 hat. Not much of a C programmer but was wondering how hard it was to add. Thanks W |
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Post by doxidad on May 6, 2021 15:09:06 GMT -8
Look at the OurWeather Arduino project. There is code in that project for the BMP280. I don't think you will gain anything by moving to a remote BMP since the pressure will be the same either in house or outside. If the remote was a great distance or different altitude it might be useful . I don't have skyweather2 board. My BMP is just hung off my I2C pins on my pi4 which is in the house. The pressure readings are pretty close to the 2 local airports metars.
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wshealy
Full Member
Posts: 187
Raspberry Pi: Yes
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Post by wshealy on May 6, 2021 17:31:09 GMT -8
If I get BMP running in my WS-AQI I can ditch the Sky2 header once we have remote camera and run Sky2 on my desktop Rpi4-8gb. I am working on a very clean version running on Bullseye that might run Home Assistant too.
W
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Post by SDL on May 8, 2021 7:40:42 GMT -8
This is a perfectly doable project. There is a chain of changes that has to be done with regarding the 433MHZ data link back to the Raspberry Pi. But, you can be sneaky about it and replace one of the values in the link with a code barometric pressure and not change the chain, but retranslate it to BP in Python when you receive it.
BTW, we are looking at adding the BMP280 into the Remote Camera project (which is starting next week, but John is going on vacation for two weeks, so it won't be finished until June - looking for a couple of beta sites!)
BP
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