Imagine walking through a crowded city street, your phone buzzing with notifications, unaware that hidden among the sea of signals is a device quietly tracking your every move. Or perhaps you’re ...

Thus, they entered a heart rate sensor to our 2025 One Hertz Challenge! The build is based around a Wemos D1 mini, a ESP8266 development board.

YouTuber Snappiness attempts to merge two Sony A7 IIs into a large-sensor, ultra-wide camera, inspired by the Hasselblad Xpan.