利用多模式调制解调器芯片CMX868能直接通过高速串行总线与单片机串行接口进行通信这一特点设计的一套采用单片机来控制CMX868芯片的数据传输系统，握手协议部分...

点阵LCD的驱动原理.绝对的精品.望给初学者以帮助-Dot matrix LCD driver principle. Absolute quality. Look to the beginners in order to help

C8051F340单片机与控制TC35I发短信 编写短信通过串口1、GSM模块传递给指定的手机 数据格式：文本-C8051F340 MCU and control TC35I write text messages send text messages through the serial port 1, GSM mobile phone module is passed to the specified data format: Text

两线制电流 温湿度变送器原理图，MSP1221的PWM和XTR115-Two-wire current temperature and humidity transmitter schematic, MSP1221 the PWM and XTR115

HT44780 液晶显示驱动 里面有简单 程序和说明-HT44780 driver inside the liquid crystal display has a simple procedure and description

液晶屏显示程序，主要对各按键处理做了很好的处理，可随意改动各按键，通讯采用MODBUS ASCII 可以控制台达变频器的起停及速度控制-LCD display program, the main keys to deal with a very good, may be arbitrarily changed the keys, communications using MODBUS ASCII converter can console cease and the speed control

用单片机控制74LS244做的串口通信系统。-74LS244 done with single-chip microcomputer to control the serial communication system.

ia4421 芯片用于实现800米无线通讯-IA4421 IS WERALESS CHIP

M12864汉字液晶显示驱动程序，完整程序经验证一定可以使用。-M12864 characters liquid crystal display driver, complete the certification process will be able to use.

mega32＋N298电机控制芯片, 通过控制电机的IN1和IN2改变方向, pwm控制速度。 IN1和IN2不同时，电机转动 IN1和IN2相同时，电机急停。 -mega32+ N298 motor control chip, by controlling the motor IN1 and IN2 to change direction, pwm control speed. IN1 and IN2 are not the same time, motor rotation IN1 and IN2 are the same, the electrical emergency stop.

基于AT89S52的温度传感器18b20控制系统程序：温度检测，自动转换led显示；具有超限报警功能。-AT89S52-based control system for temperature sensor 18b20 process: temperature detection, automatic conversion led display have overrun alarm.