Led matrix 8051 avr pic arm

AVR PWM控制LED变色，有外部RTC功能-AVR PWM control LED color, there is an external RTC function

ATMEGA16的实验代码，实验一为LCD显示，实验2为LED流水灯，实验三为AD转换，实验四为日历，实验五为温度计驱动及串口通信。-ATMEGA16 experimental code, test one for the LCD display, LED light water experiment 2, three for the AD conversion experiment, experiment four calendar, thermometer, test drive and f