https://github.com/tonyp7/esp32-nixie-clock

Nixie Clock driven by an ESP32
https://github.com/tonyp7/esp32-nixie-clock

ds3231 esp-idf esp32 neopixel nixie-clock ws2812

Last synced: about 1 month ago
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Nixie Clock driven by an ESP32

• Host: GitHub
• URL: https://github.com/tonyp7/esp32-nixie-clock
• Owner: tonyp7
• License: mit
• Created: 2019-05-11T08:00:13.000Z (almost 6 years ago)
• Default Branch: master
• Last Pushed: 2020-08-16T02:12:48.000Z (over 4 years ago)
• Last Synced: 2025-02-28T19:38:32.898Z (about 2 months ago)
• Topics: ds3231, esp-idf, esp32, neopixel, nixie-clock, ws2812
• Language: C
• Homepage:
• Size: 15.7 MB
• Stars: 49
• Watchers: 7
• Forks: 9
• Open Issues: 3
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

Awesome Lists containing this project

README

        
# esp32-nixie-clock

A smart nixie clock capable of automatically setting time and adjusting for timezones / summer time transitions.

![Clock face](https://raw.githubusercontent.com/tonyp7/esp32-nixie-clock/master/pictures/nixie-clock-front-1024.jpg)

# Features

**Smart**

  - Time is set automatically through a web API

  - A webapp is provided to adjust wifi settings, timezone, backlights and display sleeping times

  

The wifi settings are managed by [esp32-wifi-manager](https://github.com/tonyp7/esp32-wifi-manager).



  

  

  



**A modern dispay driver**

  - SPI based driver

  - No multiplexing of nixies

  - No relying on old nixie drivers

Each pin is fully driven by its individual 300V NPN transistor.

**A robust high voltage converter**

 - A modern flyback converter with top of the line controller

 - No 555, no old 34063 trickery

The nixie clock is powered by a LT3757 controller and a big 1:10 transformer. The design can be found [here](https://github.com/tonyp7/170v-nixie-power-supply). The last thing you need is for your clock to catch fire!

# Repository structure

- bom: Bill of Materials for the PCBs

- nixie_clock_code: An esp-idf project to compile and flash on an ESP32

- pcb: PCB source files and renders for the clock

- pictures: A placeholder for the pictures you are seeing in this readme file

- schematics: Electronics schematics for the clock

# Photos

### Clock in its environment

![Nixie Clock](https://raw.githubusercontent.com/tonyp7/esp32-nixie-clock/master/pictures/nixie-clock-coffee-table-1024.jpg)

### The clock face PCB

![Clock face PCB](https://raw.githubusercontent.com/tonyp7/esp32-nixie-clock/master/pictures/clock-face-assembled-1024.jpg)

### The logic board PCB

![Logic board PCB PCB](https://raw.githubusercontent.com/tonyp7/esp32-nixie-clock/master/pictures/logic-board-assembled-1024.jpg)