Sold by German DIY store OBI, the OBI Energy Tracker is a €15 set of two devices, one of which you essentially stick on top ...
XDA Developers on MSN
6 smart home devices anyone can build with a cheap ESP32 and an even cheaper sensor
These are some great DIY projects that you can do for cheap.
I n “Brazil”, Terry Gilliam’s film about a dystopian society, eyeball-shaped surveillance bots hover over citizens’ shoulders ...
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