在以往大屏幕驱动电路的设计中，常采用单片机动态扫描或者是用MC14499等芯片组成的串行驱动，但他们存在的一个共同缺点是系统软硬件设计复杂，故障率高。选用PS7219芯片，可以显著降低系统设计的复杂程度，而且能更有效地保证系统稳定运行。

-In the past, large-screen drive circuit design, dynamic scanning is often used single-chip or other chips with the MC14499 serial driver, but their common drawback is the existence of a complex system hardware and software design, high failure rate. Use PS7219 chip, can significantly reduce system design complexity, and can more effectively ensure the stability of the system.