How to Make a Neopixel Rainbow Clock

Beautiful build from edison science corner up on Hackster.io!

We love the incorporation of one of our most trusty products – the NeoPixel Ring – 16 x 5050 RGB LED with Integrated Drivers.

I know making a clock sounds a little irrelevant, especially nowadays because we all have smartphones and no one is going to use or look into the clock for time, but it is good when you are doing some work or during a workout. So, I decided to make one Arduino digital clock for my room. While searching for the clock model, I got thousands of designs but most of them used seven-segment displays and I wanted to build a unique and colourful clock without using Seven segment displays. So, here I am going to use Neo-Pixel LEDs with Arduino pro mini and RTC module. About the clock I made, it’s a very simple clock that shows time and room temperature and the main feature of this clock is that the colour of the digits changes every minute.

See the full write-up here.


Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, TinyGO, or even use the Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for CircuitPython, MakeCode, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.

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