Each digit is made using one pair of Neopixel rings ... The rest of the build is pretty plain vanilla — an Arduino Nano clone, a DS3231 RTC, a Lithium battery, and some buttons, all housed ...

This was my main draw to the Neopixel; Adafruit has written a custom Arduino library and provided sample code to get things up and running quickly. Adafruit says that the Neopixel line of products ...

While the pinout is very similar to the Arduino Nano’s, there are four (12-bit ... “On either side of the micro-USB port are two RGB NeoPixel LEDs. Since both are linked to GPIO 11, they ...