this post was submitted on 08 Mar 2025
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Depends but I have some cheap esp based heltech knock offs from temu that do about 2km from being haphazardly taped into my upstairs windows. Power draw is about 200ma but I don't bother with deep sleep or other optimizations. I'm in a flat suburban area.
I imagine it'd be much better if I whipped them up on the chimney with proper antenna but for something that just fits in my pocket they're really impressive.