【正文】 esign using4x 4ranks in the form of a keyboard, directly from the AT89S51interface of high, low byte. Electronic safe alarm controlled by AT89C51, AT24C02 storage,1602 LCD,4 x4 matrix keyboard input password. The safe alarm as it is from AT89S51chip as CPU so we can use programming method makes the alarm has the intelligent, humane, and the specific design of each function unit, CPU module, detection module, alarm module, it follows the detection environment, when the environment brightness brightness change continues to detect the password input case, if not to enter the correct password and the alarm circuit to send out alarm sound prompts the risk of theft, considering the actual situation of the plicated with shock alarm module to prevent thieves using violent means to open the safe, when CPU detects more than a certain strength of the shock immediately issued a warning, from which the device design and production process with the analysis, the safe alarm has high safety, low cost, low power consumption, easy to operate. Keyword: AT89S5 LCD160 module、 III 目錄 第一章 、系統(tǒng)的硬件設(shè)計 .................................................. 1 硬件系統(tǒng)的總體結(jié)構(gòu)圖 ................................................................................ 1 AT89S51的介紹 ........................................................................................... 1 硬件系統(tǒng)組成 .............................................................................................. 3 ： ........................................................................................... 3 記憶模塊： ................................................................................................. 4 聲光提示模塊： .......................................................................................... 4 ： .................................................................................................. 4 鍵盤模塊： ................................................................................................. 4 第二章 、單元模塊電路 .................................................... 4 44 矩陣鍵盤 ........................................................................................... 5 復位電路 ..................................................................................................... 5 振蕩電路 ..................................................................................................... 6 發(fā)光二極管 LED電路 ................................................................................... 6 報警電路 ..................................................................................................... 7 電源輸入電路 .............................................................................................. 7 AT24C02存儲電路 ....................................................................................... 8 LCD12864顯示電路 ...................................................................................... 9 2. 9 檢測電路 ……………………………… ……………………………………… ...10 震動模塊： ………………………………………………………………… … . 11 電路板的繪制于生產(chǎn) ................................................................................ 12 第三章 、軟件程序設(shè)計 ................................................... 12 軟件總設(shè)計流程圖 ..................................................................................... 12 44 矩陣鍵盤掃描程序 ........................................................................... 13 顯示子程序 ............................................................................................... 15 密碼修改子程序 ........................................................................................ 15 讀 /寫 AT24C02子程序 ............................................................................... 15 密碼修改流程圖 ……………………………………………………………… 16 結(jié)論 .............................................................17 致謝 ............................................................. 18 參考文獻 ......................................................... 19 附錄 1 PCB原理圖 ................................ 17 附錄 2 PCB板圖 .................................. 20 附錄 3 PCB 3D效果圖 ............................. 22 附錄 3 產(chǎn)品實物圖 ............................... 22 IV 附錄 4 元件清單 ................................ .24 附錄 5 源程序 .................................. 25 基于單片機的保險箱報警器的設(shè)計 1 第一章 系統(tǒng)的硬件設(shè)計 硬件系統(tǒng)的總體結(jié)構(gòu)圖 該保險箱報警器的硬件組成部分可分為 CPU 模塊、電源模塊、鍵盤輸入模塊、及檢測模塊、具體組成如下圖所示： 圖 11 硬件系統(tǒng)的總體結(jié)構(gòu)圖 AT89S51 的介紹 AT89S51 是一個低功耗，高性能 CMOS 8 位單片機，片內(nèi)含 4k Bytes ISP(Insystem programmable)的可反復擦寫 1000 次的 Flash 只讀程序存儲器，器件采用 ATMEL 公司的高密度、非易失性存儲技術(shù)制造，兼容標準 MCS51指令系統(tǒng)及80C51 引腳結(jié)構(gòu)，芯片內(nèi)集成了通用 8位中央處理器和 ISP Flash 存儲單元， AT89S51在眾多嵌入式控制應(yīng)用系統(tǒng)中得到廣泛應(yīng)用。 關(guān)鍵字 ： AT89S51 LCD1602 模塊 II Abstract As people39。 電子 保險箱報警器 采用 AT89C51 單片機控制、 AT24C02 存儲、 1602 液晶顯示， 4 4 矩陣鍵盤輸入密碼。從電子密碼鎖功能的需要、性價比、程序的數(shù)據(jù)量和接口電路等多方面綜合考慮，本文選用