基于PGA2311的音量控制程序，程序可以控制8级音量，并可以显示音量大小- PGA2311 based volume control program, the program can control the volume 8, and can be displayed volume

PGA2311电子音量控制程序。用IO口扫描编码器.-PGA2311 electronic volume control program. Read encoder command with IO port.

使用STC89C52单片机实现对PGA2311和CD4052的控制，进而实现对功放音量的控制。(The control of PGA2311 and CD4052 is realized by using STC89C52 single chip computer, and then the volume of power amplifier is controlled.)