STM32F103_USB_MSD

说明：  c8051f020从18b20读取温度数据，并进行AD转换的程序(c8051f020 read temperature data from the 18b20, and the procedure for AD conversion)

说明：  本程序基于单片机实现RTC实时时钟，简单易懂(The program is based MCU RTC real time clock, easy to understand)

51单片机读写sd卡程序,包括对手动卡的读取片区，擦除片区，写入片区，51 单片机模拟spi时序对sd卡进行操作(51mcu read and write sd card)

51实验21：DA数模转换 DA-PWM输出实验 * 实现现象：下载程序后DA模块上的指示灯呈呼吸灯效果，由暗变亮再由亮变暗(51 Experiments 21:DA Digital-to-Analog Conversion DA-PWM Output Experiment* Realization Phenomenon: After downloading the program, the indicator lamp on DA module shows the effect of breathing lamp, which changes from dark to light and then from light to dark.)

基于飞思卡尔的 电动汽车用 BMS 的程序代码(The program code of BMS for electric vehicle based on Freescale Carle)

能从SD卡读取MP3文件，并且识别后通过LD3320播放MP3，具体使用只需新建一个.ini系统文件存在sd卡，在里面设置好关键词并且所需播放的MP3文件即可(Read MP3 files from the SD card through the LD3320 play MP3 and identify specific use simply create a new the ini system files sd card exists inside set keywords and required to play MP3 files can)

The AD7992 is a 12-bit, low power, successive approximation ADC with an I2C-compatible interface. The part operates from a single 2.7 V to 5.5 V power supply and features a 2 μs conver-sion time. The part contains a 2-channel multiplexer and track-and-hold amplifier

实现无线传输物理层传输过程中功率的优化以及实现降低噪声(Optimize the wireless transmission process in the physical layer transmission power, and achieve lower noise)

智能仪表硬件系统测试程序 蜂鸣器自检：确定蜂鸣器正确 LED（LCD） 显示器自检：确定LED（LCD） 显示器每一段均正确 键盘自检： 确定键盘正确 ④其他(Intelligent Instrument Hardware System Test Program Buzzer self-test: confirm that buzzer is correct LED (LCD) Display Self-Check: Make sure that every segment of the LED (LCD) display is correct Keyboard Self-Check: Make sure the keyboard is correct)

OV7670照相模组硬件应用指南1.01 OVT，希望大家喜欢(OV7670 Photo Module Hardware Application Guide 1.01 OVT, I hope you like it.)