sd卡mp3官方pcb文件，protel格式

Test program for AVR

用C实现数字电压电流表：1、由外部输入直流电压电流，电压范围20V，电流范围1A； 2、电压/电流通过开关切换； 3、显示：数码管显示电压值/电流值，精度0.01。 -Implementation using digital voltage ammeter C: 1, by the external input DC voltage and current, voltage range of 20V, the current scope of 1A 2, voltage/current through the switch 3, Display: Digital display voltage/current value, the accuracy of 0.01.

FM1808是一种掉电可保存的RAM存储器,应用很广泛.-FM1808 is a power-off kept in RAM memory, which is widely used.

是一本关于AVR单片机的开发工具，大家可以看看，哈哈哈。-is one of the AVR development tools, we can see, Ha Ha Ha.

51单片机定时器计算工具，对于经常使用定时器的编程者很有用的-51 Single-chip timer calculation tool, often used for programmers timer useful

DDS 单片机控制AD7008 产生正弦波-AD7008 single-chip control of DDS generated sine wave

采用51系列单片机硬件电路对TEA5767收音模块控制源码-51 Series single-chip hardware circuit of TEA5767 radio module control source

51驱动RA8835/SED1335的320*240的液晶驱动程序-use 51 to driver LCD display in scale 320*240 with RA8835/SED1335

利用C语言进行字符型点阵显示模块的显示程-The use of C language character dot matrix display module shows the way

PICC18 DS18B20温度传感器读写程序-PICC18 DS18B20 temperature sensor to read and write procedures