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This time I will show you how to build a nice-looking ring clock. The clock uses a WS2812 ring containing 60 Leds, (4 Quarter circle neopixels x 15 Leds) and it is ideal for this purpose. This is an analog-style digital clock with multiple display states, a 24-hour alarm, a count down alarm, multiple alarm display states, and a demo mode. Hours, minutes, and seconds are represented by a different color of the corresponding LED.

The ring holder is made with a 3D printer and you can download the.stl file below. The physical housing for the desktop clock is based on the dimensions of the neopixel ring. The clock would need to be powered by a Power supply of 5V/3A or more. The code is taken from the Open Source project “Rise and Shine LED Clock”. I made only a small hardware modification to change the light intensity of the LEDs.

The device is very simple to make and contains only a few components:

- 60 Leds WS2812 ring, made of Four Quarter circle neopixels with 15 Leds
- Arduino nano microcontroller
- Rotary encoder with push button
- Two 3A rectifier diodes
- and one switch”

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