DIY HVAC system over pressure device

[kevin]

Maybe something like this (I have no idea the pressure ranges needed)…
https://www.amazon.com/s/ref=nb_sb_noss_2?url=search-alias%3Daps&field-keywords=arduino+air+pressure+sensor&rh=i%3Aaps%2Ck%3Aarduino+air+pressure+sensor&ajr=2

And this…

[DEPRECATED] ST_Anything - Arduino/ESP8266/ESP32

UPDATE 2022-08-17 - Per this recent SmartThings announcement, the Groovy IDE will disabled on September 30, 2022. My best guess is that any existing ST_Anything devices will probably cease to operate at this time, or shortly thereafter. It has been a good 7+ year run for ST_Anything users. I want to thank you all for making ST_Anything a successful project! My son and I really had a lot of fun creating it together, and have enjoyed hearing how you have all used it in so many creative ways. As many of you probably already know, I have moved on from ST and have ported ST_Anything over to Hubitat as “HubDuino”. If you have devices running ST_Anything that you ‘can’t live without,’ at least you know you have options. Another option for ESP8266/ESP32 users would be to use ESPHome along …