描述
<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="font-size:18px;">采用N32L403KBQ7主控,ESP8266作为联网设备,可选择不联网和联网情况下使用,在不联网时也可以调节控制参数</span></p>
<h2 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="font-size:36px;">Update:</span></h2>
<p><span style="font-size:18px;">1.Bug:ESP8266不工作,可能是硬件复位电路没做好的问题,所以联网这块可能得鸽一段时间了。</span></p>
<p><span style="font-size:18px;">2.<span style="text-decoration:line-through;">BH1750 ADI没上拉到VCC(已修复)</span></span></p>
<p class="document"><span style="font-size:18px;">3.电池电量检测还有点小BUG</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;text-align:center;"><strong><span style="font-size:36px;">功能框图如下</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;text-align:center;"><img src="//image.lceda.cn/pullimage/lpV8giBhDaHJFxtGaLQlw0N9L4mGegF5BQF3Bi67.png" alt="" width="1000" height="534"></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="font-size:18px;">美图鉴赏</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="font-size:18px;"><img src="//image.lceda.cn/pullimage/kjoXqVeknh2XJE8pie6g1V1iEFmdRrXWzpJPW8RU.jpeg" alt="" width="482" height="361"></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="font-size:18px;"><img src="//image.lceda.cn/pullimage/YLp9xxD8rsuuQgLxJqn02P2YerQMOy6PEEbrIKYD.jpeg" alt="" width="379" height="505"></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="font-size:18px;"><img src="//image.lceda.cn/pullimage/EbK0VEV26ffcblb1IDPqDrwamliBPFiMh2EDlkyG.jpeg" alt="" width="579" height="434"></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;text-align:center;"><span style="font-size:36px;"><strong>外壳初妆</strong></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;text-align:center;"><span style="font-size:36px;"><strong><img src="//image.lceda.cn/pullimage/LevWCjFALmvHcdryA89ljQ10qN3dPL44kB5kbwKK.png" alt="" width="675" height="531"></strong></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;text-align:center;"><span style="font-size:36px;"><strong><img src="//image.lceda.cn/pullimage/F0NX16CMDiBnKvIZYaO5yX84EHSisJBRX0W09Ngb.png" alt="" width="673" height="530"></strong></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>
<h2 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;">一、各模块功能介绍</h2>
<p></p><hr class="horizontal-splitline normal-bold-2"><h2 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.主控</h2>
<p> <span style="font-size:18px;">为了能够在不连接电源的情况下提高续航,</span><span style="font-size:18px;">采用低功耗的N32L403KBQ7主控,主要的作用有:收集数据并处理,处理图像,发送数据给ESP8266,检测电池电量。<strong>切记!未引出BOOT0,只能通过SWD下载。</strong></span></p>
<p> </p>
<h2><span style="font-size:18px;"><span style="font-size:24px;">2.</span><span style="font-size:24px;">土壤湿度模块</span></span></h2>
<p><span style="font-size:18px;"> 使用优信家的土壤湿度模块,建议买沉金款的,普通款在高湿度环境下容易生锈,导致测量不准确等问题,因为是通过接触土壤的方式来检测,所以必须要插在土壤比较紧实的地方,并且滴箭(插入土壤里的水管)和土壤湿度模块必须相近,否则会导致水分输入过多的情况。</span></p>
<p><img src="//image.lceda.cn/pullimage/QCoNHmfN6cFF3qb8u23ckwZP4JZqwsxEEJzCupnA.png" alt="" width="351" height="210"></p>
<h2>3.温湿度模块</h2>
<p><span style="font-size:18px;"> SHT30是一个比较常用的温湿度模块,尽管可以使用像DHT22这样的单总线通信模块,但是考虑体积问题,所以弃用此方案。此外SHT30具有功耗低,反应快,抗干扰能力强的优点。</span></p>
<p><img src="//image.lceda.cn/pullimage/fReqt95BJDDB3uBnXLKdLNfXfKZm0TrHLvWclrw8.png" alt="" width="196" height="179"></p>
<h2><span style="font-size:24px;">4.无线模块</span></h2>
<p><span style="font-size:24px;"> <span style="font-size:18px;">本次无线和联网设备采用老朋友ESP8266,原本方案是采用同频率下功耗更低的ESP32-C3作为联网设备,MCU通过串口发送数据给ESP8266,ESP8266再通过MQTT向设备端发送数据,且终端也可发送信息给ESP8266,ESP8266再发给主控,进行环境参数设置,或者产生相应的动作。</span></span></p>
<h2><img src="//image.lceda.cn/pullimage/9CjqoTr4DeTOSz731PbaK04mMvgZI7fGKWj3xMbh.png" alt="" width="325" height="242"></h2>
<h2>5.光线传感器模块</h2>
<p><span style="font-size:18px;"> 采用BH1750,这个是帮别的学院的同学进行研究,光照对于植物对土壤湿度需求影响的研究(我负责的部分),但是被弃用了,而且放在背面,对于光照的敏感度太低。相关驱动代码已写好,有需要的同学自行领取~</span></p>
<p> </p>
<h2><span style="font-size:24px;">6.拨轮(按键控制)</span></h2>
<p><span style="font-size:18px;"> 拨轮相对于其他按键来说,拥有比较高的交互性,并且相对美观,已适配长按和短按驱动。</span></p>
<p><img src="//image.lceda.cn/pullimage/42ptstSOVUYQFsavtNQnB8BVcufnmgzA6RslEMnv.png" alt="" width="334" height="293"></p>
<h2>7.电源管理及充电模块</h2>
<p><span style="font-size:18px;"> 采用了一颗pmos管进行电源管理,当USB没有电源(VBUS)输入时,通过一颗弱下拉电阻,使得栅极呈低电平,此时DS导通,使用锂电池供电,当有USB电源提供时,VBUS会通过一颗肖特基二极管,给系统供电,此时DS断开,使得在充电的同时也可以给系统供电,若听的不是很明白,可以去看一下<a href="https://www.bilibili.com/video/BV1Na411h7tU?spm_id_from=333.999.0.0&vd_source=a1e9502e385d1bb03fa3ea7d653e93a3" target="_blank">工科男孙老师的视频</a>。充电部分采用锂电池电源管理芯片,LTC4054是TP4054的加强版(?),功能和TP4054差不多,不再赘述。</span></p>
<p><img src="//image.lceda.cn/pullimage/ao409c4aid26BKqYHqHhMnT2ALL7KxB2EY1ReoCC.png" alt="" width="361" height="273"></p>
<h2>8.水泵</h2>
<p> <span style="font-size:18px;">就普通的3V迷你水泵,只能说能用吧。。。。</span></p>
<p><img src="//image.lceda.cn/pullimage/Gy0LU4OyjWRkg7Ikheuu84j9oZSEOQNshUBIAHy6.png" alt="" width="299" height="203"></p>
<h2><span style="font-size:24px;">9.固定部分</span></h2>
<p><span style="font-size:24px;"> <span style="font-size:18px;">焊接铜螺母</span></span></p>
<h1 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.项目灵感来源</h1>
<p></p><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;"> 他说还没想好。</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>
<h1 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="font-size:36px;">二、硬件部分</span></h1>
<p></p><hr class="horizontal-splitline normal-bold-2"><h3 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;"> <span style="font-size:24px;">1.电源</span></h3>
<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;"><span style="font-size:18px;"> 采用两颗AMS1117分别给ESP8266和MCU及设备供电,采用星型连接,分开供电,避免ESP8266在高功耗时AMS1117发热严重,导致温度测量不准确。电池供电使用RC滤波,有效减少低频噪声。充放电共存在上面已有说明。</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 pap-left-indent-1.6em" style="line-height:1.8;"><span style="font-size:18px;"><img src="//image.lceda.cn/pullimage/ZBXuh36lI3J561vdohEgN8GiVs4gsIYRrQCqPXEn.png" alt="" width="568" height="287"></span></p>
<h3 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;"><span style="font-size:18px;"> <span style="font-size:24px;">2.土壤湿度测量</span></span></h3>
<p><span style="font-size:18px;"><span style="font-size:24px;"> <span style="font-size:18px;">添加了1nf的电容,稳定数据</span></span></span></p>
<h3><span style="font-size:18px;"><span style="font-size:24px;"> 3.ESP8266</span></span></h3>
<p><span style="font-size:18px;"><span style="font-size:24px;"> <span style="font-size:18px;">晶振包地,天线下无走线,另外有延时启动,各部分严格按照技术手册要求。</span></span></span></p>
<p><span style="font-size:18px;"><span style="font-size:24px;"><span style="font-size:18px;"><img src="//image.lceda.cn/pullimage/32sElhGc05dX3EOhzvAMR7wVWg3RJtus0m0NSfEe.png" alt="" width="510" height="260"></span></span></span></p>
<h3><span style="font-size:24px;">3.I2C</span></h3>
<p><span style="font-size:18px;"><span style="font-size:24px;"><span style="font-size:18px;">添加了上拉电阻,极大地支持外部I2C设备。</span></span></span></p>
<h3><span style="font-size:24px;">4.拨轮</span></h3>
<p><span style="font-size:18px;">因为芯片内部可以设定为上拉状态,在上拉输入时可检测拨轮状态。</span></p>
<p><span style="font-size:18px;"><img src="//image.lceda.cn/pullimage/cX20tsnvIg1buvoQb3gLS7zoSTBHmMNJqexHCQSu.png" alt="" width="413" height="218"></span></p>
<h3><span style="font-size:24px;">5.电池电量检测</span></h3>
<p><span style="font-size:18px;">采用开关式,避免产生多余的功耗</span></p>
<p><span style="font-size:24px;"><img src="//image.lceda.cn/pullimage/V8eUJqC3zSKTeQne7kNTFeyd0vVfieipYiXNu2Ht.png" alt="" width="252" height="281"></span></p>
<h3><span style="font-size:24px;">6.水泵驱动</span></h3>
<p><span style="font-size:18px;">采用PWM驱动MOS调速,低导通,通过定时器输出不同的占空比的PWM来调节水泵马力。</span></p>
<h3><span style="font-size:24px;">7.复位</span></h3>
<p><span style="font-size:24px;"><img src="//image.lceda.cn/pullimage/i8mXJS41QB2Y9dWjVEzI28VelPzZXEj2vUqruAIX.png" alt="" width="671" height="210"></span></p>
<p><span style="font-size:18px;">没啥好说的,BOOT0通过下拉电阻接地,直接进入系统flash,NRST上拉正常启动,接地复位。</span></p>
<h3><span style="font-size:24px;">8.充电模块</span></h3>
<p><span style="font-size:24px;"><img src="//image.lceda.cn/pullimage/0GbKVclVYmXTc1nMXaAUlYSDjy58GNt1KTw2c1o2.png" alt="" width="410" height="307"></span></p>
<h3><span style="font-size:24px;">9.短接点</span></h3>
<p><span style="font-size:18px;">通过短接,使用短接点,选择USB串口调试。</span></p>
<p><span style="font-size:18px;"><img src="//image.lceda.cn/pullimage/1MPg5cnzsw8EudWNCfqjUCq3ME505v1ody7CoaLo.png" alt="" width="425" height="388"></span></p>
<h1 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="font-size:36px;">三、软件部分</span></h1>
<p></p><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;"><span style="font-size:18px;"><strong> 实现功能分为八个部分</strong></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 pap-left-indent-1.6em" style="line-height:1.8;"><span style="font-size:24px;">1.UI 不得不说的方面</span></h3>
<p> <span style="font-size:18px;">UI实际上就是<strong>套娃</strong>,建立一个主链表,作为父对象,然后包含子对象(其实也是一个链表),当点击确定,子对象不为空时,指向子对象,当退出时,再指回父对象。<strong><span style="font-size:24px;">详情请参考</span></strong><a href="https://blog.csdn.net/m0_51220742/article/details/124237363" target="_blank"><strong><span style="font-size:24px;">这篇文章</span></strong></a>,<span style="font-size:24px;"><strong>思路参考来自<a href="https://gitee.com/snqx-lqh/screen-design-using-gui/tree/master/2%E3%80%81STM32C8T6+IIC+OLED0.96GUI%E8%AE%BE%E8%AE%A1" target="_blank">这篇文章</a>(<a href="https://gitee.com/snqx-lqh" target="_blank">@snqx-lqh</a>)</strong></span></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="font-size:18px;">大部分代码我都做好注释。</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;"><span style="font-size:18px;">链表如下,已做好注释,创建对象时严格按照如下格式</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="font-size:18px;"><img src="//image.lceda.cn/pullimage/jMc5B1ZFctLAd4z9F8oAZeNR4zyrO8IJL8MTANaY.png" alt="" width="514" height="323"></span></p>
<h4 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="font-size:18px;">菜单的建立</span></h4>
<p><span style="font-size:18px;">就和刚刚说的一样,<strong>套娃!</strong>建立一个对象,这个对象可以是父对象也可以是子对象,子对象的意思就是,被这个父对象<strong>包含</strong>,当子对象被<strong>点击</strong>时进入子对象的链表,同时,这个父对象也有可能是另一个对象的子对象(所以说套娃)。</span></p>
<p><span style="font-size:18px;"><img src="//image.lceda.cn/pullimage/Iy5lpzLDYdoj3viLVsb5fI150WWGmecMJIQ3w0OU.png" alt="" width="609" height="574"></span></p>
<p><strong><span style="font-size:18px;">UI刷屏</span></strong></p>
<p><strong><span style="font-size:18px;">UI刷屏分别是两个函数控制刷新,一个是菜单页的刷新,一个是数据的刷新</span></strong></p>
<p><strong><span style="font-size:18px;">菜单页刷新</span></strong></p>
<p><strong><span style="font-size:18px;"><img src="//image.lceda.cn/pullimage/pySKMSo26xowFYkLJiwhZyb5jUDajDuBouhJWqL6.png" alt="" width="501" height="386"></span></strong></p>
<p><strong><span style="font-size:18px;">数据刷新</span></strong></p>
<p><strong><span style="font-size:18px;"><img src="//image.lceda.cn/pullimage/3l84zS70LG33o2q7H9iYxctBIF4R5R8mDaHMAUxL.png" alt="" width="567" height="319"></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;"><span style="font-size:18px;"><strong>UI控制</strong></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="font-size:18px;"><strong>当按键触发时,转向对应的链表,详情请看源代码</strong></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="font-size:18px;"><strong><img src="//image.lceda.cn/pullimage/m6jctYzYUMVb25JANbWFzZyooouDLaiknhREOIvO.png" alt="" width="791" height="418"></strong></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;"><span style="font-size:24px;"><strong>2.OLED驱动</strong></span></h3>
<p><span style="font-size:18px;">该驱动取自<a href="https://space.bilibili.com/38673747?spm_id_from=333.337.search-card.all.click" target="_blank"><strong>B站UP主Mjgame</strong></a>,主要进行图形库的驱动,以及各种图形接口,唯一缺点是用不了反色。</span></p>
<p> </p>
<h3><span style="font-size:24px;"><strong>3.土壤湿度</strong></span></h3>
<p><span style="font-size:18px;">采用DMA搬运ADC,感觉也没啥好讲的,使能DMA和ADC以后就自动转换数据了。</span></p>
<p><span style="font-size:24px;"><strong>4.环境温湿度</strong></span></p>
<p><span style="font-size:18px;">I2C驱动SHT30,在EV7标志位以后,连续获取信息,每8位进行一次标志位检测再给个EV7结束接收,实际上连续获取的时候检测EV7也是可以的,只要在最后发送终止信号就行</span></p>
<div>
<div><code> while(!I2C_CheckEvent(I2C2, I2C_EVT_MASTER_DATA_RECVD_FLAG));</code></div>
<div><code> data[0] = I2C_RecvData(I2C2);</code></div>
<div><code> </code></div>
<div><code> while(!I2C_CheckEvent(I2C2, I2C_EVT_MASTER_DATA_RECVD_FLAG));</code></div>
<div><code> data[1] = I2C_RecvData(I2C2);</code></div>
<br><div><code> while(!I2C_CheckEvent(I2C2, I2C_EVT_MASTER_DATA_RECVD_FLAG));</code></div>
<div><code> data[2] = I2C_RecvData(I2C2);</code></div>
<p><br></p><div><code> while(!I2C_CheckEvent(I2C2, I2C_EVT_MASTER_DATA_RECVD_FLAG));</code></div>
<div><code> data[3] = I2C_RecvData(I2C2);</code></div>
<div><code> </code></div>
<div><code> while(!I2C_CheckEvent(I2C2, I2C_EVT_MASTER_DATA_RECVD_FLAG));</code></div>
<div><code> data[4] = I2C_RecvData(I2C2);</code></div>
<p><br></p><div><code> I2C_ConfigAck(I2C2, DISABLE);</code></div>
<br><div><code> while(!I2C_CheckEvent(I2C2, I2C_EVT_MASTER_DATA_RECVD_FLAG));</code></div>
<div><code> data[5] = I2C_RecvData(I2C2);</code></div>
<p><br></p><div><code> I2C_GenerateStop(I2C2, ENABLE);</code></div>
<div><code> I2C_ConfigAck(I2C2, ENABLE);</code></div>
<p></p></div>
<p><span style="font-size:24px;"><strong>5.马达驱动</strong></span></p>
<p> <span style="font-size:18px;">很简单,就调整占空比就完事了,占空比算法就是<strong>设置的比较值/period。</strong></span></p>
<div>
<div><code>void Motor_Speed( int16_t speed_level )</code></div>
<div><code>{</code></div>
<div><code> int16_t level =0;</code></div>
<div><code> if( speed_level <=10 )</code></div>
<div><code> {</code></div>
<div><code> level = speed_level*100;</code></div>
<div><code> TIM_SetCmp1( TIM3, level );</code></div>
<div><code> }</code></div>
<div><code> </code></div>
<div><code>}</code></div>
</div>
<p><span style="font-size:24px;"><strong>6.Flash</strong></span></p>
<p><span style="font-size:18px;">本项目采用了写Flash的方式进行数据的存储,主要是设定上的数据,如马达的转速,设定浇水的土壤湿度,将其存储在第63页,从第0位开始,高8位是记录马达转速,低8位是记录浇水的土壤湿度。</span></p>
<p><span style="font-size:24px;"><strong>7.延时函数</strong></span></p>
<p><span style="font-size:18px;">采用两个通用定时器TIM6和TIM7,想着反正用不到,就用来计时了,分别进行ms级和us级的延时,在系统开始时必须调用一次,否则第一个延时函数将失效。</span></p>
<p><span style="font-size:24px;"><strong>8.按键</strong></span></p>
<p> <span style="font-size:18px;">实现了长短按的功能,但是我这项目只用到短按,思路是当检测到按键按下,进入while循环,此时对应按键的数值++,当达到阀值(长按的时间)或者按键不再按下的时候跳出,循环内有判断,会将长按的标志位置位,再进行判断是哪个按键按下,以及长短按的情况</span></p>
<p> </p>
<h1 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;">四、功能视频</h1>
<p></p><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;"> </p>
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