You can connect a 6 to 20V external power supply here, but the recommended voltage and current ratings are 7 to 12V and 1A only. The Arduino Nano and Uno are equipped with very similar processors ...

In addition to its stackability and low-voltage powering capabilities, the EasyNixie module also offers robust Arduino support. An Arduino library is available to interface with the modules ...

Then, an Arduino board might be exactly what you're looking for. This open-source hardware platform comes in a multitude of versions, from the classic Uno to ... the same voltage or increasing ...