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PAGE PAGE 1 毕 业 设 计（论 文）基于单片机与nrf905的无线测温系统（发送机）系 别：机电信息学院专业名称：电气工程及其自动化学生姓名：郭 峰学 号：0801120438指导教师姓名、职称：王 建完成日期 年 月 日目录1.绪论··················································32.设计思想和目的········································33.整体电路方框图设计····································44.单元设计模块··········································54.1对51单片机的认识···················································54.2 LED显示器的结构····················································84.3 LED实时显示电路····················································84.4 DS18B20温度采集单元················································94.4.1温度采集器件的选择··············································94.4.2 DS18B20温度采集的原理··········································94.4.3控制器对DS18B20温度采集流程···································11 4.4.4 DS18B20芯片与单片机的接口·····································114.4.5 SPI接口·······················································124.4.6DS18B20复位及应答关系示意图····································144.4.7 DS18B20的使用问题·············································154.4.8 DS18B20的使用问题·············································154.5 NRF905无线发送模块························ 164.5.1 NRF905的模块························ ·164.5.2 NRF905各管脚名称及其管脚功能·································164.5.3 NRF905原理····················································184.5.4 nrf905发送机··················································195.系统软件设计························································205.1温度采集流程·······················································235.2 DS18B20温度采集系统仿真图·········································245.3 NRF905发送模块的控制··············································255.3.1NRF905初始化的设置·············································255.3.2发送模块的流程图···············································266.参考文献·····························································367．设计心得体会······················································37附录 ·································································
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