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LED's Efficiency Exceeds 100%

Two ways to use an LED as a light sensor with Arduino

1-bit CPU for ‘super low-performance computer’ launched – sells out promptly | Device is programmed with DIP switches to operate an LED. That's it

Drop's refreshed CTRL, ALT and SHIFT keyboards offer improved stabilization and LED patterns

Lenovo’s new Legion 9i is a liquid-cooled, Mini LED, RGB monstrosity