Build Instructions

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• 1

  Part List

  Part list to make project:

  1. Arduino UNO https://amzn.to/2P58O7s

  2. Nixie tube 6 pcs https://amzn.to/3aHyJvX

  3. Opto coupler chip TLP627

  4. DC step-up module from 12VDC to 390VDC https://amzn.to/3aHyJvX

  5. Breadboard https://amzn.to/3aHyJvX

  6. Real time clock module DS3231 https://amzn.to/3aHyJvX

• 2

  Circuit Design

  The circuit uses opto-isolation chip to control Nixie tube (using 150VDC) by Arduino (using 5VDC). By matrix connection, so we need only 16 outputs from Arduino to control 60 lights of 6 nixie tube.

  The real time clock module DS3231 is used to keep the time (even turn off power), it is communicated with Arduino by I2C network.

  Arduino will read real time, then turn on/off nixie lights by sequence in high frequency to make human eyes view 6 numbers as permanent

• 3

  Arduino Code

  Basically, the code will get real time from module DS3231 and show to 6 nixie tube via opto-isolation chip.

  Code and circuit can be downloaded here:
  http://bit.ly/2tUWtMy

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