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Month: June 2020

2020-06-15

So this contraption that’s been in the making since December 2016 is officially controlling my home AC.  Additionally, it’s logging all of the operational data of the AC: operating state, supply temp, return temp, space temp, space relative humidity as well as attic temperature, outdoor temperature, and outdoor humidity into a real database (PostgreSQL) at one second intervals. Here’s the complete install.  Yes I know some covers (and screws) are missing.  I’m working on that Read more…


2020-06-13

I don’t think that it’s an awe inspiring revelation that new ideas are sexy and exiting. Starting new projects, developing new designs, and shopping for and putting together BOMs is exciting. What’s not sexy and not exciting is working on the last 5% of the idea. The grinding out of the bugs and refinement of ideas and dealing with design decisions that you have no one to blame but your self. That’s where I’m at Read more…