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Forum Index : Microcontroller and PC projects : PicoMite Nixie Clock (almost)

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Bleep
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Joined: 09/01/2022
Location: United Kingdom
Posts: 761
Posted: 08:18pm 10 Mar 2026
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Hi,
Here is my take on a Nixie Clock for a PicoMite, Both for a 480x320 LCD and a HDMI VGA, It might be ok on a standard VGA, I have not tried it, I have also not tested it on a 2040 Pico.

VGA Version

Short video of it working.

LCD Version

Short Video of it working.

Both versions ziped up.
nixie.zip

Regards Kevin.
Edited 2026-03-11 06:21 by Bleep
 
toml_12953
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Joined: 13/02/2015
Location: United States
Posts: 565
Posted: 01:27am 11 Mar 2026
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In the jpg file, all the digits look fine but when the program runs, the 4 and the 9 don't display properly in the minutes column.
Edited 2026-03-11 11:32 by toml_12953
 
ville56
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Joined: 08/06/2022
Location: Austria
Posts: 430
Posted: 07:47am 11 Mar 2026
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toml_12953,

I've done some optimisation (brightness, contrast, color depth, size) on the fonts. I use the .bmp to load. All 3 fonts do work with BLIT commands (.bmp files) without a hitch. Difference is, that I'm loading the fonts onto 6 individual LCD displays and you use a single one. If I find time I will also try to setup a similar environment like yours and see if I can reproduce the issue.


Nixie-Fonts.zip


Just give them a try

Gerald

N.B.; I'm still fiddling around with my software. Now try to get DCF77 working, but I'm here on the edge of the indoor receiving range (Vienna/Austria) and so I'm currently working on an "extension" via 433MHz ISM band.
Edited 2026-03-11 17:48 by ville56
                                                                 
73 de OE1HGA, Gerald
 
Bleep
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Joined: 09/01/2022
Location: United Kingdom
Posts: 761
Posted: 10:06am 11 Mar 2026
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Hi Toml
When you say the 4 & 9 don't display properly, what exactly do you mean?
What picomite are you using? You do realise this will only work on a HDMI VGA or a 480x320 LCD & not tested on a RP2040 which may not have enough memory.
 
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