<div class="document"> <h3 class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height:1.8;">* 1、项目功能介绍</h3> <hr class="horizontal-splitline normal-bold-2"> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height:1.8;">本设计的电子时钟系统采用瑞萨R7FA2E1A72DFL系列单片机作为控制核心,该MCU集成了高性能的ARM Cortex-M4内核,拥有丰富的外设接口和资源,通过编程可以实现时钟的各种功能控制。时钟的显示模块使用0.56寸高亮度的共阴极数码管,数码管直接由MCU的GPIO口驱动,可以清晰地显示时分秒的时间信息。为了实现环境监测功能,设计中加入了DHT11数字温湿度传感器,该传感器可以采集温度和湿度数据,通过IIC串行总线连接到MCU,MCU可以实时读取传感器数据。人机交互方面,设计了4个独立按键,按键通过MCU的内置上拉电阻构成按键电路,按下按键时产生高低电平变化唤醒MCU来执行相应的时钟设置功能。此外,设计还引出了SWD调试下载接口、串口打印接口、触摸按键接口等,以方便调试和功能扩展。电源管理使用AO3401A芯片控制锂电池的充放电,TP4056负责对电池的充电保护。最后使用无源蜂鸣器完成提示音功能。该方案经过调试可以实现稳定可靠的时钟功能。<span class="c-message__edited_label"> </span></p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height:1.8;"> </p> <h3 class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height:1.8;">*2、项目属性</h3> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height:1.8;"><strong><span style="color:#95a5a6;font-size:14px;">训练营学习完成的项目，项目首次公开，有参考借鉴其他训练营项目</span></strong></p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height:1.8;"> </p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height:1.8;"> </p> <h3 class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height:1.8;">*4、硬件部分</h3> <hr class="horizontal-splitline normal-bold-2"> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt pap-left-indent-1.6em" style="line-height:1.8;"><img src="//" alt=""></p> <h3 class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height:1.8;">*5、软件部分</h3> <hr class="horizontal-splitline normal-bold-2"> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height:1.8;"><img src="//image.lceda.cn/pullimage/SMLOnzftSPauBfmJf2HYzkvF91mro3ykOHGygAVJ.png" alt="SMLOnzftSPauBfmJf2HYzkvF91mro3ykOHGygAVJ.png" width="1200" height="715"></p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt pap-left-indent-1.6em" style="line-height:1.8;"> </p> <h3 class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height:1.8;">*6、BOM清单</h3> <hr class="horizontal-splitline normal-bold-2"> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height:1.8;"><img src="//image.lceda.cn/pullimage/CnevqN631tRKnYSJsAvCjDbO1wFF5My1IzR5oDiZ.png" alt="CnevqN631tRKnYSJsAvCjDbO1wFF5My1IzR5oDiZ.png"></p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height:1.8;"> </p> <h3 class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height:1.8;">*7、大赛LOGO验证</h3> <hr class="horizontal-splitline normal-bold-2"> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height:1.8;"><img src="//image.lceda.cn/pullimage/FujHPvDPfGRLZRVSzan8oiIee83Mu3JRZRnbl44F.png" alt="FujHPvDPfGRLZRVSzan8oiIee83Mu3JRZRnbl44F.png"></p> <h3 class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height:1.8;">* 8、演示您的项目并录制成视频上传</h3> <hr class="horizontal-splitline normal-bold-2"> <p style="line-height:1.8;"> </p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height:1.8;"><a href="https://www.bilibili.com/video/BV18P41167kY/?pop_share=1&vd_source=52b9ec0366976b5a0759154fb4e7943c" target="_blank">https://www.bilibili.com/video/BV18P41167kY/?pop_share=1&vd_source=52b9ec0366976b5a0759154fb4e7943c</a></p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height:1.8;"> </p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height:1.8;"> </p> </div>