<div class="document"> <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>第一版PCB</strong><img src="//image.lceda.cn/pullimage/6FZ1jKP35eaO8XkJSa2fYJGSijxBylvSAGg6tld1.jpeg" alt="" width="385" height="238"><strong>透明探索版电子钟（树脂外壳）</strong><img src="//image.lceda.cn/pullimage/QQtqW7KI8g5GTuWzYZRNkVPXtkQp1jpD1CAZG2uE.jpeg" alt="" width="507" height="234"><img src="//image.lceda.cn/pullimage/qLD2MvL8RvI5RCJLDmnhT6DWWTim4KtO1YA6XK3k.jpeg" alt="" width="479" height="221"><img src="//image.lceda.cn/pullimage/ktDsRKUyybrHfGLDtayp2JYEWRBIy2opH4IMvFJ0.jpeg" alt="" width="489" height="226"><strong>第二版PCB</strong><img src="//image.lceda.cn/pullimage/rDH5N15a4osmUaKKLvDKIwOqfH97UMbU65PdZvz8.jpeg" alt="" width="401" height="259"><img src="//image.lceda.cn/pullimage/973B1yY1z8RDxI3IeWcdtmfgrvFBwbQUMD07J41S.jpeg" alt="" width="413" height="258"><strong>暗黑版电子钟（黑色工程塑料外壳）</strong><img src="//image.lceda.cn/pullimage/ZC01pVgREV4pjuWFzlx5ibURrHRw9DpkV7NdNeTI.jpeg" alt="" width="403" height="186"><img src="//image.lceda.cn/pullimage/461n03Wo6hJL5XkCe6c0AHIv0CL6KQeCzcBL9XvZ.jpeg" alt="" width="403" height="186"></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;">* 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;"> </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;">基于瑞萨R7FA2E1A72DFL芯片设计的桌面电子闹钟,有一个触摸按键和四个实体按键，可以实现时间的显示、日期的显示、温湿度的显示、倒计时和闹铃，并通过无源蜂鸣器发出提示音</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> <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> <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;"> </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;">参考教程复刻，并自行增加部分功能</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> </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;">*3、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" 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;">使用瑞萨R7FA2E1A72DFL芯片，搭载四个实体按键和一个触摸按键，四位共阴极数码管实现显示功能，使用DHT11实现温湿度的检测，使用一个无源蜂鸣器通过调整频率来实现不同的提示音，通过一个type-c接口实现闹钟的供电和电池的充电。第一版PCB由于没有使用外部晶振，时钟每分钟就要快1S，第二版PCB增加了32.768K的外部晶振提高了时钟的精度</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 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;">*4、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;"> </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;"><span style="color:#000000;font-size:14px;">在肖工代码的基础上增加了日期的显示、倒计时、闹铃设置的功能</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;"><span style="color:#000000;font-size:14px;">使用触摸按键作为倒计时的开始和暂停，设置好倒计时时间后触摸一次触摸按键开始倒计时，倒计时完成后通过蜂鸣器发出提示音，此时可以通过触摸一次触摸按键停止提示；</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;"><span style="color:#000000;font-size:14px;">使用mcu的rtc闹钟实现闹铃功能，通过按键设置闹铃时间，触摸一次触摸按键可以实现闹铃的打开和关闭，触摸后蜂鸣器响两次提示闹铃关闭，响三次提示闹铃开启，在到达闹铃时间时蜂鸣器会发出声音提示，任意界面触摸一次触摸按键可以停止提示；</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> <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;">* 5、演示视频</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;">视频1----时间、温度、湿度、年月日周显示</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;">视频2----时间修改（日期修改同理）</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;">视频3----倒计时功能</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;">视频4----闹铃功能</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> <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> <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>