finished making my VOC sensor and hooked it up to wifi and home assistant.Time to put my money where my mouth is. I got 5 pcb's in my order (because that was the minimum order) and I've spent the last couple weeks brushing back up on my soldering skills one one of them as a throwaway, because boy were they rusty.
But today, after spending most of the evening flashing a new firmware to the arduino-based controller chip for the whole shebang, I decided I had dusted them off enough to quit procrastinating and get started.
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Not as nice as they might've once been, but seem perfectly serviceable.
Looks perfectly serviceable for knowing when my printer is printing. Now to get some smart switches and connect the Bento Box and the room air purifier to automation based on this data.