data-communication-

atmega1281与lcd3202的接口控制程序，能够完成3202的全部显示功能。(atmega1281 and lcd3202 interface control program, to complete the full 3202 display.)

利用STC89C52和AT24C02实现记忆大于255小于65536的数据。(STC89C52 memory use and AT24C02 achieve greater than 255 and less than 65536 data.)

ASCII码字库，包括12*12，24*24，32*32(ASCII codeword library, including 12*12, 24*24, 32*32)

基于zigbee技术CC2530 开发采集大气压(Development and Collection of Atmospheric Pressure Based on Zigbee Technology CC2530)

利用ULN2003A进行驱动，产生PWM波，里边有照片，可供参考，通过本例程了解PWM 的基本原理和使用 (#include <reg52.h> unsigned char timer1 sbit PWM=P1^2 void system_Ini() { TMOD|= 0x11 //PWM TH1 = 0xfe //11.0592 TL1 = 0x33 TR1 = 1 IE =0x8A } main() { system_Ini() while(1) { if(timer1>100) timer1=0 if(timer1<30) PWM=0 else PWM=1 } )

单片机驱动的OLED显示屏，单色绿光。C语言(Single-chip-driven OLED display, monochrome green. C language)

本文介绍了利用大规模专用集成电路SA4828设计变频器的方法。内容包括：SA4828的特性介绍及变频器的主电路、驱动电路、隔离电源、保护电路、速度检测、调速系统等部件的设计方法。(This article describes the use of large scale integrated circuit design of the inverter method SA4828. Include: SA4828 features introduced and the inverter main circuit, driver circuit, isolated power supply, protection circuits, speed detection, speed control system and other parts of the design.)

说明：  Si4730收音机基于STM32F103，通过按键和LCD7565屏自动搜台和手动搜台(The Si4730 radio is based on STM32F103. It searches the platform automatically and manually by keys and LCD7565 screen.)

ZMODEM在 MCU上的实现，可以用作 IAP程序升级，非常方便，上位机软件直接使用超级终端(ZMODEM in MCU， it can be used in IAP.)

STM32单片机主控器，推挽全桥逆变器，SPWM控制，查找表生成SPWM波形，闭环，输出220V/50Hz交流电(STM32 microcontroller master, push-pull full-bridge inverter, SPWM control, look for 220V/50Hz AC table generating SPWM waveform, the closed-loop output)