Design of A Colour Sequence Detector for a 5-core Harness Cable
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Updated
Aug 15, 2025
Design of A Colour Sequence Detector for a 5-core Harness Cable
Arduino SS Micro (Leonardo/Pro Micro) keyboard firmware upgrade for a Razer Cynosa Lite, AK5000, or similar single zone RGB keyboard. Easily adapted to any conventional membrane keyboard.
This is the LED 'J' Sequencer, a project I built for my uncle's birthday! It features 20 LEDs arranged to form the letter 'J', which light up in sequence. The "brains" are a trusty 555 timer and two CD4017 decade counters – no microcontrollers here, just good old-fashioned discrete logic fun. Check out the details to see how it works!
Running Light soldering/3d-printing project for beginners
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