【正文】 蘇州科技學院本科生畢業(yè)設計（論文） I 基于 MSP430 單片機的無線 LED 廣告屏設計 摘 要 LED點陣顯示屏的發(fā)展前景極為廣闊，為使該模塊 LED顯示屏控制系統(tǒng)具有更加方便和靈活性，本文 對系統(tǒng)的硬件做了精心設計。本文設計的主體思想是通過主機將實時時間，采集的環(huán)境溫度以及光照信息，由無線模塊傳送到從機，動態(tài)顯示在廣告屏上。綜合多方面的因素，最終確立了設計方案： 主控制器選用MSP430單片機，點陣屏選擇 LED點陣單色圖文顯示屏，無線模塊采用 NRF2401射頻收發(fā)芯片 。 基于單片機介紹了 16*16LED顯示屏的設計與制作過程，內容包括 LED顯示屏的硬件電路、 PCB設計、 C語言程序設計與調試等方面，涉及到單片機電子產品設計和制作方面的各個環(huán)節(jié)，認識單片機的基本結構，工作原理及應用方法，并提高單片機知識技術的運用能力。 關鍵詞 單片機；點陣；無線； LED 廣告屏； NRF2401 蘇州科技學院本科生畢業(yè)設計（論文） II The Design of Wireless LED Advertising Screens Based on MSP430 Abstract The development of LED display has a farrange prospect. To make this modular of LED display control system more convenience and flexible .This project made elaborate design of system hardware. The main idea of the design is through the host will realtime time, acquisition environment temperature and light information transferred by wireless module, dynamic display from machine, in advertising screen, prehensive in many factors. The final design is that the main controller chooses MSP430 microcontroller, bitmap screen choice of LED dot matrix monochromatic graphic display, wireless NRF2401 transceiver module USES chips. This project introduces the design of 16*16 LED screen based on SCM and manufacture process, which content includes the LED display hardware circuit, PCB design, C language program design and missioning etc, and involves microcontroller electronic products design and manufacture aspect the each link. Besides , understanding the basic structure, microcontroller working principle and application methods, and improve the utilization ability microcontroller knowledge technology. Keywords MCU。 Dot matrix。 Wireless。 LED advertising screen。 NRF2401 蘇州科技學院本科生畢業(yè)設計（論文） III 目 錄 第 1章 緒論 .................................................................................................................... 1 引言 ............................................................................................................... 1 研究課題的目的與意義 ................................................................................... 1 課題研究的主要內容 ....................................................................................... 2 第二章 論文方案設計 ...................................................................................................... 4 系統(tǒng)方案總體分析 .......................................................................................... 4 單片機的選擇 ................................................................................................. 4 C51單片機 .............................................................................................. 4 Mega16單片機 ......................................................................................... 5 MSP430單片機 ......................................................................................... 5 無線模塊的選擇 .............................................................................................. 5 NRF905模塊 .............................................................................................. 5 CC1020模塊 ............................................................................................. 6 NRF2401模塊 ........................................................................................... 6 LED廣告屏的選擇 ........................................................................................... 7 .............................................................................................. 7 ....................................................................................... 7 LED 驅動模塊 ................................................................................................. 7 .................................................................................................. 7 .................................................................................................. 7 最終方案的確定 .............................................................................................. 8 第三章 系統(tǒng)硬件設置 ...................................................................................................... 9 硬件電路的總體設計 ....................................................................................... 9 單片機最小系統(tǒng) ............................................................................................ 10 MSP430的特點 ............................................................................. 10 ................................................................................................ 11 ................................................................................................ 11 ..................................................................................... 12 實時時鐘 ...................................................................................................... 12 串行通信 ...................................................................................................... 13 LED點陣 ....................................................................................................... 14 無線模塊 ...................................................................................................... 15 溫度傳感器 ................................................................................................... 15 系統(tǒng)的電路設計 ............................................................................................ 18 LED 電路原理圖 ..................................................................................... 18 單片機 msp430最小系統(tǒng)的 PCB版圖設計 ................................................ 19 第 4 章 軟 件 設 計 ................................................................................................. 20 ................................................................................................... 20 蘇州科技學院本科生畢業(yè)設計（論文） IV 實時時鐘模塊 .............