BOOST

这是超声波测距模块的最简单的测试程序，用1602显示(This is the most simple test program ultrasonic ranging module, with the 1602 show)

说明：  IC卡读写程序,内有终端PCB及原理图.爱好者可以看一下.也许会有所帮助.(IC card reading and writing process, there are terminal PCB and schematic. Lovers can look at. Maybe be helpful.)

12864实验例子代码 hex文件 c语言 汇编语言(12864 Experimental Example Code hex file c language assembly language)

定时器扫描矩阵键盘，让你彻底摆脱delay(Timer scan matrix keyboard, let you completely get rid of delay)

此文档，主要是实现开发板显示中文，用到了locale与busybox,(This document, mainly to achieve the development board display Chinese, use the locale and busybox,)

说明：  超过液位后警示灯动作，提示或警告液面已经到达警示位(Warning lamp action after exceeding liquid level)

一个EEROM的程式,24C08,大家可以参考看一下,(A EEROM program, 24C08, we can refer to a look,24)

射頻晶片 nRF2401,nRF2402 use AVR ATMega128 with CodeVision C Compiler (nRF2401 RF chip, nRF2402 use AVR ATMega128 with CodeVision C Com piler)

用PWM技术对直流电机进行调速，并用LED进行指示(DC motor speed control using PWM technology, with LED indication)

读写器与射频卡通信的设计采用RC522射频读写芯片与射频卡进行通信，符合ISO14443规范协议；硬件系统设计中主要有AVR单片机主控模块、电源模块、存储模块、外部时钟模块、LCD模块；软件系统设计采用C语言，遵循模块化和结构化编程模式，设计了射频卡操作程序、软关机与自动关机程序、LCD显示、串行Flash存储器、外部时钟等外部设备驱动程序。所设计的手持式读写器具备对MF1 S50、S70射频卡的读写、实时状态显示、系统在线升级以及关机等功能。(This handset can process the data offline or online, reading and writing from 10 cm far. This handset is low-power, miniature, modular design and so on. This article includes: the communication design between RF card and Reader, hardware system design and software systems design. The communication design between RF card and Reader used to RC522 RF chip control RF cards, in line with ISO14443 standard protocol Hardware system design mainly include AVR microcontroller control modules, power modules, memory modules, external clock modules, LCD modules Software system designed with C programming language, and follow the modular structure of the programming model, and has the RF card operation procedures, soft shutdown and automatic shutdown procedures, LCD display, serial Flash memory, an external clock, and other external device driver Procedures. The handset readers has the MF1 S50, S70 RF card reader function, real-time status display function, the system online update function and so)