Do name all the pins that you are using: https://github.com/StartleStudio/nixie/blob/master/firmware/1.0/nixie_atmega_firmware_1.0/nixie_atmega_firmware_1.0.ino#L170L21. Do no just use numbers like 2,3,4,5,6. Name those pins like **select_pin1** or **170V_pin**
Do name all the pins that you are using: https://github.com/StartleStudio/nixie/blob/master/firmware/1.0/nixie_atmega_firmware_1.0/nixie_atmega_firmware_1.0.ino#L170L21.
Do no just use numbers like 2,3,4,5,6. Name those pins like select_pin1 or 170V_pin