Introduction - If you have any usage issues, please Google them yourself
2051 microcontroller control the iPod functions. 2051 single-chip IO port scanning and infrared receiving three play/pause, previous/next track buttons. Button is received by the UART control iPod iPod control mode Lingo ID: 2 simple by-wire. In order to reduce the connection, and only then the UART transmit pin. Receiver the iPod issue of information. First estimate iPod will back information, or to ask what information, wait for some time after the corresponding answer directly.