485 are way communication. Through 485 to control a group of light switches.

学习AVR单片机的基础实验程序 适合初学者学习提高-AVR MCU learning basic experimental procedure suitable for beginners to learn improve

很多的数字式传感器资料和程序，我相信很多朋友都需要它吧？？、-Many of the digital sensor data and procedures, I believe that many of my friends need it, right? ? ,

keil C51编写的的RFM01和RFM02应用程序，程序用于无线RS232通信，具有单片机间通信自检功能，对使用RFM芯片的朋友也许有帮助-keil C51 prepared RFM01 and the RFM02 application procedures for wireless RS232 communications, with a single-chip communication self-test function, on the use of RFM Friend chips might be helpful

ADC0832 端口复用 8数码管显示 初学ADC及单片机的助手 有 proteus 仿真电路-ADC0832-port multiplexing 8 digital tube display beginners ADC and the microcontroller" s aides have proteus simulation circuit

一个51写的usb程序 测试过的-This is a tested program with 51.

自己编写的专门针对6122红外编码芯片的红外解码程序,使用定时器+中断,占用CPU时间少,能稳定可靠的解码

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步进电机速度控制，根据要求设计步进电机速度曲线-Stepper motor speed control, according to design stepper motor speed curve

ASM51－RS232串行通讯-- RS232 serial communication

本文介绍的I2C未来的两个扩展方向：热插拔和远距离通迅，其中包括电路设计。-This article describes the extension of the I2C next two directions: hot swap and long-distance Communications, which includes circuit design.