this post was submitted on 07 Feb 2026
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yes as others have said. microcontroller with decent io and wifi, fairly easy to make web interfaces which is handy. A step up from arduino and i dont think it eats too much more power if the wifi is used sparingly.
I've got a wildlife infrared camera made off a pi zero. I reckon if i can switch that to esp32 the battery life might stretch quite a bit - or i can shrink the case to a smaller battery. raspberry pipico would probably do similar tbf, but i bought like 10 esp32 for cheap. but i'm not quite sure how well they handle the image processing triggering.
Recently i've been making these: https://github.com/gadec-uk/departures-board as gifts for people who i know that live in London who i sometimes stay with. extremely useful.
There's loads of projects like this that people have done and you can just put them together for a few tens of quid and a few hours of time if you dont have to write the software.