18B20

STM8L 的串口程序(STM8L serial program)

STM３２F１０３控制独立按键和矩阵按键，基于keil4(STM32F103 controls independent keys and matrix keys based on keil 4)

stm32f407 TIM1四路PWM,可调，环境MDK4，8M晶振，测试可用(stm32f407 tim1 PWM four-channel, adjustable)

说明：  本设计源码为12864液晶显示程序，可以控制12864液晶显示数字、字符、汉字以及图形。功能强大。(The design source for the 12864 LCD program, you can control the LCD 12864 number, character, characters, and graphics. Powerful.)

基于STC51单片机使用UART串口模块通讯例子(STC51 using UART serial port module communication example)

说明：  亿光EL817光耦的应用资料，我已经在电路板上使用了模块，很好用，可以用在低速开关领域(100 million light EL817 optocoupler application information, I have used the modules in the circuit board, well used, can be used in the field of low-speed switch)

OBD系统开发时OBD故障码解析，含大部分整车生产企业自定义的代码以及通用代码(OBD fault code parsing during the development of OBD system, including custom codes and general codes of most vehicle manufacturers)

说明：  使用Jk触发器实现PLL鉴频器电路 还没仿真测试 只作为参考(jk flipflop for PLL frequency discriminator)

说明：  配合中移onenet网络平台使用 1.修改esp8266.c下的wifi账号及密码 2.修改onenet.c下的PROID、SERIAL和PSWD 2.指令说明： 1.平台侧协议数据： 查询温度：01 03 0001 0001 D5CA 查询湿度：01 03 0002 0001 25CA 3.公式 1.温度：A0 / 100 2.湿度：A0 / 100(Use with China Mobile onenet network platform 1. Modify the wifi account and password under esp8266.c 2. Modify PROID, SERIAL and PSWD under onenet.c 2. Instructions: 1. Platform side protocol data: Query temperature: 01 03 0001 0001 D5CA Query humidity: 01 03 0002 0001 25CA 3. Formula 1. Temperature: A0/100 2. Humidity: A0/100)

XPT2046 四线触摸屏控制芯片,优化、代码规范注释清晰。共同分享。(XPT2046 4 LINE touch screen controller driver code。)