PT2258 with AT89C51 MCU 5.1 Volume control with hardware and remote control,with 5.1 and 2.1 input with standby system.full code in Uv2 environment.

avr单片机编写 一种能同时使用两种格式(TV/DVD)的红外遥控器,奉献给大家(原理图,代码)-avr to prepare a single-chip can simultaneously use two formats (TV/DVD) infrared remote control, dedicated to you (schematic diagram, code)