Low-level drivers for controlling nixie tubes running on an arduino platform.
These classes control various types of hardware to display digits on a nixie tube and provide a set of effects when moving from one digit to another. This allows dislpay functions such as clocks, timers, etc. to be written idependently of the specific hardware they run on.
These classes have ony been compiled on the ESP8266, ESP8285 and ESP32. They will probably need some modifications to run on other processors. The current set of drivers all use SPI to control Microchip HV chips. They contain code copied from the SPI library both for performance and for it to be able to run in an interrupt handler.