18b20

说明：  在freertos操作系统下采用modbus协议进行rs485通讯(485 communication using Modbus protocol under FreeRTOS operating system)

这个源码是利用STM32操作ATT7022E，并简单的读取各项基本参数的通讯例子。STM32使用R8T6，计量芯片是ATT7022E。例程中采用模拟SPI来对ATT7022E进行操作，里面的初始化、校表的寄存器操作均是根据ATT7022E的用户手册和应用笔记的最新寄存器操作进行。希望这个例子能对使用这款芯片做电力仪表的带来帮助。(This source is the use STM32 operating ATT7022E, and a simple example of the basic reading communication parameters. STM32 using R8T6, metering chip is ATT7022E. Analog SPI routines to manipulate ATT7022E, register operations inside the initialization, school tables are made in accordance ATT7022E user manuals and application notes for the latest register. I hope this example will bring help to use the chip to make electricity meters.)

酒精测试仪proteus仿真，单片机进行分析处理，判断是否醉酒驾车，再通过液晶板显示出来。(Alcohol Tester proteus simulation, analysis and processing microcontroller to determine whether drunk driving, and then through the LCD panel display.)

电热恒温水壶，以单片机89C52为核心，由LED显示模块，键盘控制模块，水温测控模块，继电器模块，报警模块(Heated kettle)

stm32f103 单片机 HAL库定时器应用例程(stm32f103 HAL library timer application routine)

示波器在串口屏上面显示，基于51的串口屏例程。(Oscilloscope in serial interface screen shown above, based on 51 serial screen routines.)

This file will guide to draw schematic orcad 16.2. It help for beginners

AD9910-STM32F103-全国电子设计大赛DDS发送端代码 2017年全国电子设计大赛H题(AD9910-STM32F103-DDS Sender Code for National Electronic Design Competition Question H of the 2017 National Electronic Design Competition)

基于STC15单片机的EC11旋转编码器驱动程序。支持一定位对一脉冲或两定位对一脉冲的两种规格EC11。并实现旋转编码器按键单击双击长按功能(EC11 rotary encoder driver based on STC15,Two kinds of specifications for one pulse or two positioning to one pulse for certain bits EC11. And realize the rotary encoder click, double-click, long press function)

STM32解算MPU6050工程文件，IIC读取6050数据，带DMP 。(STM32 calculation of MPU6050 engineering documents)