Building digital clocks may not be the sexiest of DIY projects, but it’s still pretty fun. Try this version that utilizes the ESP8266 family of devices which makes incorporating the Network Time Protocol simple.
It’s not all that often that a different piece of hardware comes along that immediately captures the attention of the builder community. The ESP8266 is an example of this. It’s only about the size of a nickel, yet contains a powerful 32-bit microcontroller and a Wi-Fi interface, plus you can buy it for under $10.
