Resistor color codes are an essential part of maker education. The color code system has been in continuous use since the 1930’s and was introduced by the Radio Manufacturer’s Association as a compact method for marking numerical values on small components. The code contains only 10 colors, but it can still be a challenge to remember their values unless you use them every day.
This project helps you use the resistor code every day to tell the time, and uses a Raspberry Pi Pico W to connect to an NTP (Network Time Protocol) server over Wi-Fi for the current time. Once this is done, the Pico W uses the WS2812B Neopixel strip to display the current time as resistor code colors. By looking at the code in action every day, you will soon be decoding resistor values faster in your sleep!