human_traffic_statistics

IIC总线协议芯片CH452驱动代码，配合数码管和按键，适合快速移植。(IIC bus agreement CH452 chip driver code, with digital tube and buttons, suitable for rapid transplantation. )

网上一些关于SCA100t的例程不少，可大多都是用内部的SPI控制，用到模拟X-Y轴引脚输出的还是太少，本程序为利用sca100t的经xout yout脚经TLC2543模拟读出实现倾角的更加精确的读数，本程序已经调试可用。(Online a lot about SCA100t routines can be used mostly within the SPI control, use the analog output XY axis pin or too little, for the use of this procedure by xout yout feet sca100t the TLC2543 analog read out by the inclination to achieve more accurate readings, the program has debugging available.)

说明：  canopen+freertos 心跳例程(canopen+freertos Heart)

CD4051,CD4052,CD4053 模拟开关。 PDF 说明文档(CD4051, CD4052, CD4053 analog switches. PDF documentation)

说明：  基于Arduino。UNO的超声波测距，红外感应人体，液晶显示屏代码。(It's based on Arduino. UNO. It's some codes for Ultrasonic ranging, infrared induction of human body, LCD display.)

AT89C51的IO方式控制3个8255的实用程序，AT89C51的IO方式控制3个8255的实用程序。(AT89C51 of IO way of controlling 3 8255 utilities, AT89C51 of IO way of controlling 3 8255 utilities.)

网上很多都是英语的，现在把CAN2.0规范中文版的分享出来，有需要的朋友可以下载下来学习了。(Chinese version of the CAN2.0 specification,)

This code schedules 1 blocks at a time, with 4 lanes per block.

该程序为蓝牙LED灯控制，基于STM32的简易示波器。(The program is controlled by Bluetooth LED lamp and a simple oscilloscope based on STM32.)

说明：  pcf8591 AD转换程序，可以实现电压表功能，四路模拟输入，一路输出DA输出。(pcf8591 AD conversion process, you can achieve the voltmeter function, four analog inputs, one output DA output.)