Before LCDs and LEDs became cheap enough to add to nearly any device, mechanical flap displays were used in large-scale signage and bedside alarm clocks for improved legibility. Shinsaku Hiura has ...
This is a simple Arduino-based smart alarm clock that uses a passive infrared sensor (PIR) in a custom 3D-printed housing. The 16×2 LCD has a backlight and the PIR is set to brighten the display every ...
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