LED digital tube is a kind of "8" shape device. It is packaged with multiple LED's. in the internal structure, the lead wire has been connected. Only the common electrode and the required strokes need to be led out. According to the different connection methods, LED digital tubes can be divided into two categories: one is the common cathode, the other is the common anode. In the process of programming, a deep understanding of these characteristics of LED digital tube will play a great role in programming. If the type of nixie tube is different, its hardware circuit will be different, even the programming method will be different; but no matter what type of nixie tube, its luminous principle is the same, only the polarity of the power supply is different.If we want the nixie tube to display correctly, we need to use the driving circuit to drive each code segment, so that we can display the numbers we need. According to the different driving modes, we can divide the driving modes of the nixie tube into two kinds, one is static driving, the other is dynamic driving.