PierogiNixie-4 A Pi Pico powered nixie tube board that uses 4 IN-14 nixie tubes. Features Programmed using a Pi Pico ds3231m RTC CR2032 Battery for keeping time when off power 4x IN-14 Nixie Tubes 4x k155id1 Binary to Decimal decoders Onboard 12v to 5v Convertor Photos Front Back