IИ-1 Clock 1st Prototype

1 year ago

Profile:This is the first design of a IИ-1 Nixie Tube clock. I learned to use the Arduino and program the Arduino through a lot of trial and error. I also learned quite a bit about shift registers.

Open source license: Public Domain

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Description

I first discovered Nixie clocks by accident while web surfing.  After reading through several Instructables, creators web pages, and how Nixies work, I decided to make one from scratch as well.  I did use other authors code snippets for certain elements of the clock.  In my learning, I thought I would be able to create and etch my own circuit boards.  After several trials and failures I deemed this was not a viable option.  I considered using OSH Park at first, but they did not have a program to draw the diagram or design the PCB.  I stumbled across EasyEDA, then found that I can also prototype PCBs and have them made.  It took sometime to get used to EasyEDA but once I did I found it very simple to work with. Ignore the 2 pin headers in the original schematic and the PCB that seems to do nothing. This was an idea at the time of designing to have a child board plug into the mother board. Where the child board would have the Nixie tubes to display. Please see links below for some of the projects I borrowed from as well as video of my working prototype.

Arduino Code https://create.arduino.cc/projecthub/Goldbrick_Gangboss/i-1-nixie-tube-clock-1st-prototype-c4902e

Working Prototype Video https://youtu.be/CFTfmlD0Qno

Borrowed code and idea for SPI from this creator. https://bit.ly/2Uv31uS

Initial idea with Vegas Protocol some borrowed code. https://bit.ly/36HXWFd

Idea to use HV5622 register from this creator. https://bit.ly/32RgRMD

Documents

Main Board

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PCB_2020-10-07_11-24-13

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BOM

ID Name Designator Footprint Quantity
1 HV5622PJ-G HV1,HV2 PLCC44PA 2
2 NTE30120 LED1 LED-TH_BD3.0_RED 1
3 NTE30120 LED2 LED-TH_BD3.0_GREEN 1
4 ItsyBitsy5V32u4 MC1 ITSYBITSY 1
5 IN-1 Nixie NX1,NX2,NX3,NX4 IN-1 THRU HOLE PCB, NO BASE 4
6 33KΩ R1,R2,R3,R4 R_AXIAL-0.4 4
7 680Ω R5 R_AXIAL-0.4 1
8 LUMOS HV Module U1 LUMOS HV MOD 1
9 RTC-DS1307-ADAFRUIT U2 RTC-DS1307-ADAFRUIT 1

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