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This is a stackable Arduino-compatible module that let's you easily control nixie tubes using only 3 data pins(4 with dimming) + power pins(3.3V/5V).
More information can be found on this Kickstarter page:
https://www.kickstarter.com/projects/esp32-stick/easynixie
In-12a, In-12v , In-15A, In-15B and In-17 are supported out of the box. The module proved to work with Z574M, In-19, In-14, In-8-2 and ZM1020.
if use the module be sure to follow all the safety guidelines mentioned in the safety section of:
https://www.kickstarter.com/projects/esp32-stick/easynixie
Do not give this module to kids or people who have heart related issues! Use it only, if you know what you are doing it is still just an electronic part!
Nixie clocks, watches, radios, geiger counters... Whatever comes to you mind! For inspiration refer to the previously mentioned Kickstarter page.
This is how you can build a nixie radio: