Im in the hvac building automation service. Currently using these controllers bc-service.nl/downloads/FX15.pdf and also from distech-controls.com .. We use these controllers to run entire hvac systems. Its almost the same as an ardunio. Has inputs and outputs.
One thing I seen is that Arduino doesn't have analog outputs only pwm. Is there anyway to be able to send outputs 0 to 10dc. Example if I had fan vfd that operates on a signal of 0 to 10. To maintain a static pressure.
or if I want to run a economizer damper system. Where it opens damper to a certain position.
Sorry if Im all of the place. I just ordered a Arduino and its looks very interesting cause its open source
The controllers I currently use are not open source and cant do much custom programing.
Thanks for your help and if anyone has any questions for me I'm always around