ESP Nixie Clock (ESP8266 CPU)

Building a Nixie Clock is a time honored tradition among makers, and this is yet another DIY Nixie Clock project. This one is unique in a few respects: 1) it uses an ESP8266 development board as the microcontroller, allowing it to automatically sync its time to NIST over WiFi, and 2) it features a 3D printed frame and hand-solderable PCB.