TCRT5000

crc校验的一种计算方式，可以用于网络协议或串口、can协议的校验位计算，有封装好的函数(A calculation crc check can be used for network protocols or serial port, can protocol parity bit calculation, there is a good function package)

STM32控制DHT22采集温湿度数据，并将数据显示到LCD上(STM32 control DHT22 collect temperature and humidity data, and the data displayed on the LCD)

说明：  一本讲述proteus与51单片机仿真的书(A book about the simulation of Proteus and 51 single chip computer)

C8051F310 IO按键指示灯驱动程序

ti公司电弧检测板原理图及使用说明，主要利用时频域特征检测电弧(TI company arc detection board schematic and instructions for use)

The book focuses very much on impulse radio UWB techniques rather than multiband systems. The reasons for this are both practical and historical. The promise of UWB was low complexity, low power and low cost. Impulse radio, being a baseband technology, holds the most promise to achieve these three benefits.

使用MDK写的STM32F4的485通信程序，不使用延迟，解决了因485控制端翻转过快而导致的数据发送不完全的情况(The MDK write the STM32F4 in 485 communications program, do not use the delay to resolve the 485 control terminal flip too fast data transmission is not completely)

51单片机AT89C52串行通信.上位机通过串口向单片机发数据，单片机接收后发回给上位机。(51 AT89C52 single-chip serial communication. PC send data through the serial port to the microcontroller, the microcontroller has sent back to the host computer.)

Text-line extraction in unconstrained handwritten documents remains a challenging problem due to nonuniform character scale, spatially varying text orientation, and the interference between text lines.

平衡跷跷板 PWM AD 传感器 nokia5110液晶 模块化编程(Balanced seesaw PWM AD sensor nokia5110 LCD modular programming)