{"id":356,"date":"2025-02-11T20:29:39","date_gmt":"2025-02-11T20:29:39","guid":{"rendered":"https:\/\/hobbies.wielenga.co.uk\/?p=356"},"modified":"2025-03-01T23:18:36","modified_gmt":"2025-03-01T23:18:36","slug":"yoradio-nixie-tube-simulating-clock-easy","status":"publish","type":"post","link":"https:\/\/hobbies.wielenga.co.uk\/index.php\/2025\/02\/11\/yoradio-nixie-tube-simulating-clock-easy\/","title":{"rendered":"YoRadio, Nixie Tube Simulating Clock (easy)"},"content":{"rendered":"

Introduction<\/strong><\/h2>\n

I’ve always been fascinated by Nixie tubes, and it’s a real shame that they are virtually impossible to buy. When I successfully assembled my YoRadio with an ESP-S3, I wanted to modify the font to resemble well-worn Nixie tubes.<\/p>\n

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How-To<\/strong><\/h2>\n

To make my fonts reusable for others, I created files that replace the standard fonts. This has only been tested with an ST7789 320×240 screen, but any display that uses a 41-point font should work.<\/p>\n

Steps:<\/strong><\/h3>\n
    \n
  1. \n

    Set up a working and tested YoRadio with a TFT screen (not tested on OLED, but it may work).<\/p>\n<\/li>\n

  2. \n

    Back up or copy your working YoRadio project, including all subfolders.<\/p>\n<\/li>\n

  3. \n

    Download “YoRadioNixieFont.zip<\/a>“<\/strong> and extract the three files.<\/p>\n<\/li>\n

  4. \n

    Copy DS_DIGI42pt7b.h<\/strong> and DS_DIGI42pt7b_mono.h<\/strong> to:<\/p>\n