Today I built and tested 4 thermostats and it took me well over 4 hours. Usually I'm faster, but an hour per unit is probably still a fair estimate.
Off the top of my head, I'd say it's somewhere around 130 solder joints. The new board design allows using Pi Zero 2 boards with pre-soldered headers. That that'll cut out 40 pins that I have to do by hand once I'm through my current stock.
If I sold more devices, I'd try creating a 3D printed jig to hold all the parts in at the same time. It just doesn't make much sense to do that when I sell so few units per year.
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npub1yd…serpq
2025-09-30 05:58:23 UTC
Author Public Key
npub1ydhmq6k7zshd5chdfrmpqpy44jyn02z7amw98knaqascw2flnpzq5serpqPublished at
2025-09-30 05:58:23 UTCEvent JSON
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"content": "Today I built and tested 4 thermostats and it took me well over 4 hours. Usually I'm faster, but an hour per unit is probably still a fair estimate.\n\nOff the top of my head, I'd say it's somewhere around 130 solder joints. The new board design allows using Pi Zero 2 boards with pre-soldered headers. That that'll cut out 40 pins that I have to do by hand once I'm through my current stock.\n\nIf I sold more devices, I'd try creating a 3D printed jig to hold all the parts in at the same time. It just doesn't make much sense to do that when I sell so few units per year.",
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