描述
<p><h3 style="line-height: 1.8;"><em> 1、项目功能介绍</h3>
<hr />
<ul>
<li style="line-height: 1.8;">温湿度测量仪项目使用STM32G030K6T6芯片作为主控芯片，Arm Cortex-M0+内核，最大主频64Mhz，具有32KB的Flash、8K的SRAM，供电电压在2.0V~3.6V。</li>
<li style="line-height: 1.8;">使用IIC通信，采集来自sht40传感器的温湿度数据，通过数码管显示温湿度数据。</li>
<li style="line-height: 1.8;">空闲时间进入低功耗睡眠模式，按键进入正常运行模式，运行结束自动进入低功耗睡眠模式，等待按键唤醒。</li>
<li>锂电池供电，板载双电源自动切换电路：锂电池（3.0-4.2V）和Tpye-c供电（5V）。</li>
<li>Type-c接口用于充电锂电池及供电运行电路。</li>
<li><em>功能演示：<a href="<a href="https://b23.tv/9zeGwvK" target="_blank">https://b23.tv/9zeGwvK</a>" target="_blank" rel="noopener"><a href="https://b23.tv/9zeGwvK</a></em></li" target="_blank">https://b23.tv/9zeGwvK</a></em></li</a>>
</ul>
<p style="line-height: 1.8;"> </p>
<h3 style="line-height: 1.8;"></em>2、项目属性</h3>
<hr />
<ul>
<li style="line-height: 1.8;"><span style="text-decoration: underline;"><em>首次公开</em></span></li>
</ul>
<p> </p>
<h3 style="line-height: 1.8;"><em> 3、开源协议</h3>
<hr />
<p style="text-align: center; line-height: 2;"><span style="text-decoration: underline;"><em><span style="font-size: 18pt;"><strong>GPL 3.0 </strong></span></em></span></p>
<p> </p>
<ul>
<li>第三版GNU通用公共许可证，由自由软件基金会（FSF）发布。</li>
<li>只要在工程项目中使用了GPL协议下的产品，那么这个工程项目必须采用GPL协议，即为：开源和免费。</li>
</ul>
<p><span style="color: #3598db;"> <<代码的开源与免费使用和引用、修改、衍生代码的开源与免费使用，但不允许修改后和衍生的代码做为闭源的商业软件发布和销售。>></span></p>
<ul>
<li><em><strong>开源协议说明链接：</strong></em><a href="<a href="https://oshwhub.com/posts/3203787b8f8044748469e47caf39c5ef" target="_blank">https://oshwhub.com/posts/3203787b8f8044748469e47caf39c5ef</a>" target="_blank" rel="noopener">立创开源硬件平台公告【帮助文档】开源硬件平台开源协议说明</a></li>
</ul>
<p> </p>
<h3 style="line-height: 1.8;"></em>4、硬件部分</h3>
<hr />
<p style="text-align: center; line-height: 2;"><span style="text-decoration: underline;"><em><strong><span style="font-size: 18pt;">MCU电路</span></strong></em></span></p>
<p> </p>
<ul>
<li><strong><span style="color: #e67e23;">STM32G030K6T6，复位NRST默认上拉，外接LSE时钟源32.768kHz</span></strong></li>
</ul>
<p style="text-align: center; line-height: 1.5;"><span style="color: #236fa1;"><strong><span style="color: #ba372a;"><img style="display: block; margin-left: auto; margin-right: auto;" src="//image.lceda.cn/oshwhub/2954492da983411f837b2221c075a488.png" width="1120" height="530" /></span></strong></span></p>
<p style="text-align: center; line-height: 1.5;"><span style="color: #236fa1;"><strong><span style="color: #ba372a;"><span style="color: #236fa1;"><span style="color: #ba372a;">图1</span> MCU主控电路图</span><br /></span></strong></span></p>
<p style="text-align: center; line-height: 1.5;"> </p>
<p style="line-height: 1.5;"><img style="display: block; margin-left: auto; margin-right: auto;" src="//image.lceda.cn/oshwhub/9dd545f7fb4b458d851875a2f9956611.png" width="1104" height="1040" /></p>
<p style="line-height: 1.5; text-align: center;"><span style="color: #236fa1;"><strong><span style="color: #ba372a;">图2</span> MCU内部结构块图</strong></span></p>
<p style="line-height: 1.5; text-align: center;"> </p>
<h4 style="text-align: center; line-height: 2;"><span style="text-decoration: underline;"><em><span style="font-size: 18pt;"><strong>温湿度传感器电路+电量监测电路+操作指示电路</strong></span></em></span></h4>
<p> </p>
<ul>
<li style="text-align: left;"><strong><span style="color: #e67e23;">SHT40-AD1B</span>传感器芯片，I2C通信接口<span style="color: #e67e23;">默认上拉</span>；干路串联等值电阻分压，支路ADC采集；按键操作+LED灯指示</strong></li>
</ul>
<p><strong><img style="display: block; margin-left: auto; margin-right: auto;" src="//image.lceda.cn/oshwhub/23bb3dfb531f4d65a6f719e83a9528f6.png" width="1117" height="539" /></strong></p>
<p style="line-height: 1.5; text-align: center;"><span style="color: #236fa1;"><strong><span style="color: #ba372a;">图3</span> 温湿度传感器电路、电量监测电路、操作指示电路图</strong></span></p>
<p style="line-height: 1.5; text-align: center;"> </p>
<p style="line-height: 1.5;"><img style="display: block; margin-left: auto; margin-right: auto;" src="//image.lceda.cn/oshwhub/208fbbbaa2d44a74bed8473447420813.png" width="1123" height="440" /></p>
<p style="line-height: 1.5; text-align: center;"><span style="color: #236fa1;"><strong><span style="color: #ba372a;">图4</span> sht40传感器手册提供的pseudo code图</strong></span></p>
<p style="line-height: 1.5; text-align: center;"> </p>
<p style="line-height: 1.5;"><span style="color: #236fa1;"><strong><img style="display: block; margin-left: auto; margin-right: auto;" src="//image.lceda.cn/oshwhub/12d05a44b3f14525b5ddf62104a2f2e1.png" width="1113" height="324" /></strong></span></p>
<p style="line-height: 1.5; text-align: center;"><span style="color: #236fa1;"><strong><span style="color: #ba372a;">图5</span> I<sup>2</sup>C通信代码</strong></span></p>
<p style="line-height: 1.5; text-align: center;"> </p>
<ul>
<li><strong><span style="color: #e67e23;">I<sup>2</sup>C</span>（Inter-Integrated Circuit）：一种常用的<span style="color: #e67e23;">同步串行通信协议</span>。</strong></li>
<li><strong>I<sup>2</sup>C设备通过开集或开漏引脚连接到总线，将线路拉低。</strong></li>
<li><strong>当没有数据传输时，由于电路上外接上拉电阻，电平被拉高，此时的I<sup>2</sup>C总线处于高电平空闲状态。</strong></li>
<li><strong>当需要数据传输时，通过将电平先拉低再释放（变为初始状态：高电平），数据位在SCL时钟信号下由SDA产生的下降沿进行数据传输。</strong></li>
<li><span style="text-decoration: underline;">硬件I<sup>2</sup>C不需要查看I<sup>2</sup>C设备很具体的通信时序，由硬件搞定。</span></li>
<li><span style="text-decoration: underline;">模拟I<sup>2</sup>C需要注意I<sup>2</sup>C设备的通信时序，模拟其时序来实现通信。</span></li>
</ul>
<p><img style="display: block; margin-left: auto; margin-right: auto;" src="//image.lceda.cn/oshwhub/91de28d3809648698ce527430fd247dd.png" width="1129" height="412" /></p>
<p style="text-align: center;"><span style="color: #236fa1;"><strong><span style="color: #ba372a;">图6</span> I<sup>2</sup>C连接示意图</strong></span></p>
<p style="line-height: 1.5; text-align: center;"> </p>
<h4 style="text-align: center; line-height: 2;"><span style="text-decoration: underline;"><em><span style="font-size: 18pt;"><strong>数码管驱动电路</strong></span></em></span></h4>
<p> </p>
<ul>
<li><strong>由3个74HC595芯片来显示2个三位数码管构成驱动电路。</strong></li>
<li><strong>其中一个74HC595芯片用于控制数码管led的共阴极端口，另外两个74HC595芯片用于控制数码管的正极端口。</strong></li>
<li><strong>当LEDx_n（x：1-2 n：A-H）输出<span style="color: #e67e23;">高电平</span>，LEDx_DIGn（x：1-2 n：1-3）控制为<span style="color: #e67e23;">低电平</span>时，此时数码管内部对应的<span style="color: #e67e23;">LED导通</span>，即<span style="color: #e67e23;">点亮</span>。</strong></li>
<li><strong>74HC595芯片由一个移位寄存器和一个输出寄存器组成。移位寄存器用于接收串行输入数据并进行位移操作，输出寄存器用于锁存移位寄存器中的数据并提供并行输出。 数据通过SER引脚以串行方式输入到移位寄存器中。SRCLK引脚提供时钟信号，当信号上升沿到达时，移位寄存器中的数据将进行位移操作。 当需要锁存数据时，使用RCLK引脚提供一个时钟信号。在信号上升沿到达时，移位寄存器中的数据将被锁存到输出寄存器中。</strong></li>
<li><strong>（<span style="color: #e67e23;">单个Bit进行传输，每次共传输一个Byte，1Byte = 8 Bit</span>）</strong></li>
</ul>
<p style="line-height: 1.5;"><img style="display: block; margin-left: auto; margin-right: auto;" src="//image.lceda.cn/oshwhub/6ae2e47125e14f3590bb09b1a9b8c05e.png" width="1108" height="661" /></p>
<p style="line-height: 1.5; text-align: center;"><span style="color: #236fa1;"><strong><span style="color: #ba372a;">图7</span> 数码管驱动电路图</strong></span></p>
<p style="line-height: 1.5; text-align: center;"> </p>
<h4 style="text-align: center; line-height: 2;"><span style="text-decoration: underline;"><em><span style="font-size: 18pt;"><strong>锂电池充电电路</strong></span></em></span></h4>
<p> </p>
<ul>
<li><strong>锂电池充电电路：采用TC4056A芯片，通过调节R11的阻值，以控制充电电流大小。公式：I = 1200/Rprog （电流单位：mA ; 电阻单位：kΩ）</strong></li>
<li><strong><span style="color: #3598db;">充电状态</span>：CHRG为低电平，STDBY为高电平，即（<span style="color: #e03e2d;">红灯</span>亮，<span style="color: #2dc26b;">绿灯</span>灭）。</strong></li>
<li><strong><span style="color: #e67e23;">满电状态</span>：STDBY为低电平，CHRG为高电平，即（<span style="color: #2dc26b;">绿灯</span>亮，<span style="color: #e03e2d;">红灯</span>灭）。</strong></li>
</ul>
<p><strong><img style="display: block; margin-left: auto; margin-right: auto;" src="//image.lceda.cn/oshwhub/78395309f8704050b7b4c4680af38f47.png" width="1107" height="423" /></strong></p>
<p style="text-align: center;"><strong><span style="color: #236fa1;"><span style="color: #ba372a;">图8</span> 锂电池充电电路图</span></strong></p>
<p style="text-align: center;"> </p>
<p style="text-align: center;"><strong><span style="color: #236fa1;">表1</span> <span style="color: #ba372a;">TC4056A状态表</span></strong></p>
<table style="border-collapse: collapse; width: 100.908%; height: 137.156px;" border="1">
<tbody>
<tr style="height: 19.5938px;">
<td style="width: 44.5889%; height: 19.5938px; text-align: center;"><strong><span style="color: #3598db;">充电状态</span></strong></td>
<td style="width: 27.0098%; height: 19.5938px; text-align: center;"><strong><span style="color: #e03e2d;">红灯CHRG（7引脚）</span></strong></td>
<td style="width: 28.3813%; height: 19.5938px; text-align: center;"><strong><span style="color: #2dc26b;">绿灯CHRGT（6引脚 ）</span></strong></td>
</tr>
<tr style="height: 19.5938px;">
<td style="width: 44.5889%; height: 19.5938px; text-align: center;">正在充电中</td>
<td style="width: 27.0098%; height: 19.5938px; text-align: center;">亮</td>
<td style="width: 28.3813%; height: 19.5938px; text-align: center;">灭</td>
</tr>
<tr style="height: 19.5938px;">
<td style="width: 44.5889%; height: 19.5938px; text-align: center;">电池充满</td>
<td style="width: 27.0098%; height: 19.5938px; text-align: center;">灭</td>
<td style="width: 28.3813%; height: 19.5938px; text-align: center;">亮</td>
</tr>
<tr style="height: 19.5938px;">
<td style="width: 44.5889%; height: 19.5938px; text-align: center;">VCC=5V 电池反接</td>
<td style="width: 27.0098%; height: 19.5938px; text-align: center;">灭</td>
<td style="width: 28.3813%; height: 19.5938px; text-align: center;">灭</td>
</tr>
<tr style="height: 19.5938px;">
<td style="width: 44.5889%; height: 19.5938px; text-align: center;">VCC=5V 未接电池</td>
<td style="width: 27.0098%; height: 19.5938px; text-align: center;">灭</td>
<td style="width: 28.3813%; height: 19.5938px; text-align: center;">亮</td>
</tr>
<tr style="height: 39.1875px;">
<td style="width: 44.5889%; height: 39.1875px;">（*）电池反接后 LED 显示会 一直处于全灭状态，需电池正接后才能恢复其它状态，或断开电池后等10秒钟可恢复。</td>
<td style="width: 27.0098%; height: 39.1875px;"> </td>
<td style="width: 28.3813%; height: 39.1875px;"> </td>
</tr>
</tbody>
</table>
<h4> </h4>
<h4 style="text-align: center; line-height: 2;"><span style="text-decoration: underline;"><em><span style="font-size: 18pt;"><strong>电源电路</strong></span></em></span></h4>
<p> </p>
<ul>
<li><strong>当5V端口悬空时，PMOS管的栅极通过电阻R14下拉到地（0V），锂电池BAT（3.7~4.2V）通过PMOS管的内部体二极管到达源极，源极电压为（3~3.5）V，此时Ugs为（-3.5）V到（-3）V，Ugs < Uth，PMOS管导通，输出Vout=（3.7~4.2）V，（注当MOS管导通后，体二极管截止，不会有电流流过体二极管）。</strong></li>
<li><strong>当5V接入时，通过二极管D1到达源极，源极电压为4.3V，栅极电压为5V，Ugs=5-4.3=0.7V>Uth，此时MOS管关断，输出Vout=4.3V（5-0.7）。</strong></li>
<li><strong>D2二极管充当增加放电作用，减少电源切换时间。</strong></li>
<li>注意：两个电源的压差必须大于0.7</li>
<li><em><strong>此电路参考源自于</strong><a href="<a href="http://www.kiaic.com/article/detail/3651.html" target="_blank">http://www.kiaic.com/article/detail/3651.html</a>" target="_blank" rel="noopener">外部电源和锂电池自动切换电路</a></em></li>
</ul>
<p><img style="display: block; margin-left: auto; margin-right: auto;" src="//image.lceda.cn/oshwhub/620b1ff42711432aadd5b1057483dc5c.png" width="1112" height="329" /></p>
<p style="text-align: center;"><strong><span style="color: #236fa1;"><span style="color: #ba372a;">图9</span> 电源电路图</span></strong></p>
<p style="text-align: center;"> </p>
<ul>
<li>在线模拟电路仿真，得到：双电源切换时间大致为10ms（100nF电容+18kΩ电阻）。</li>
<li>在上述的电路图中，若C13 = 220nF，R14 = 10kΩ ，经过模拟仿真，切换时间大致为20ms，即50Hz</li>
</ul>
<p><img style="display: block; margin-left: auto; margin-right: auto;" src="//image.lceda.cn/oshwhub/baa08ec9a3984a0b9a7de84f6da0ab1a.png" width="1104" height="622" /></p>
<p style="text-align: center;"><strong><span style="color: #236fa1;"><span style="color: #ba372a;">图10</span> 自动切换电源仿真图</span></strong></p>
<p style="line-height: 1.8;"> </p>
<h3 style="line-height: 1.8;">*5、软件部分</h3>
<hr />
<h4 style="text-align: center; line-height: 2;"><span style="text-decoration: underline;"><em><span style="font-size: 18pt;"><strong>STM32CubeMX配置工程代码</strong></span></em></span></h4>
<ul>
<li>具体配置请打开附件里的ioc文件进行查看。</li>
</ul>
<p style="line-height: 1.8;"><span style="color: #95a5a6; font-size: 14px;"><img style="display: block; margin-left: auto; margin-right: auto;" src="//image.lceda.cn/oshwhub/5b153942db5b4886b495eb1a2b6ca9e0.jpg" width="1100" height="570" /></span></p>
<p style="line-height: 1.8;"><span style="color: #95a5a6; font-size: 14px;"><img style="display: block; margin-left: auto; margin-right: auto;" src="//image.lceda.cn/oshwhub/75707b00e56842e8b505bf14338237e0.jpg" width="1102" height="371" /></span></p>
<p style="line-height: 1.8;"> </p>
<h4 style="text-align: center; line-height: 2;"><span style="text-decoration: underline;"><em><span style="font-size: 18pt;"><strong>MDK编</strong></span></em></span><span style="text-decoration: underline;"><em><span style="font-size: 18pt;"><strong>程</strong></span></em></span><span style="text-decoration: underline;"><em><span style="font-size: 18pt;"><strong>工程代码</strong></span></em></span></h4>
<ul>
<li style="line-height: 1.8; text-align: center;"><span style="color: #236fa1;"><em><strong><span style="color: #ba372a;"><<</span>主程序<span style="color: #ba372a;">>></span></strong></em></span></li>
</ul>
<p style="text-align: center;"><img src="//image.lceda.cn/oshwhub/f067c0fd51374dd390ad673a3b9e05eb.png" width="1088" height="772" /></p>
<p style="line-height: 1.8;"><img style="display: block; margin-left: auto; margin-right: auto;" src="//image.lceda.cn/oshwhub/05528a83aa374e1e9e6f0adda5e9aed6.png" width="1089" height="357" /></p>
<p style="line-height: 1.8;"> </p>
<ul>
<li style="line-height: 1.8; text-align: center;"><strong><span style="color: #236fa1;"><span style="color: #ba372a;"><<</span>部分数码管驱动代码</span><span style="color: #ba372a;">>></span></strong></li>
</ul>
<p style="line-height: 1.8;"><img style="display: block; margin-left: auto; margin-right: auto;" src="//image.lceda.cn/oshwhub/8f336c043dc14fa88f0a0200c6be57bc.png" width="1091" height="672" /></p>
<p style="line-height: 1.8;"> </p>
<ul>
<li style="line-height: 1.8; text-align: center;"><span style="color: #236fa1;"><strong><span style="color: #ba372a;"><<</span>获取SHT40传感器温湿度数据<span style="color: #ba372a;">>></span></strong></span></li>
</ul>
<p style="line-height: 1.8;"><img style="display: block; margin-left: auto; margin-right: auto;" src="//image.lceda.cn/oshwhub/6b73ff53199b4fd786d574a797bcf3f8.png" width="1082" height="357" /></p>
<p style="line-height: 1.8;"> </p>
<ul>
<li style="line-height: 1.8; text-align: center;"><strong><span style="color: #ba372a;"><<</span><span style="color: #236fa1;">ADC采集电压</span><span style="color: #ba372a;">>></span></strong></li>
<li style="line-height: 1.8; text-align: justify;"><strong><span style="color: #ba372a;">volvalue = (adc_value<em>(3.03F-0.15F))</em>2/4095.0F</span></strong></li>
<li style="line-height: 1.8; text-align: justify;"><strong><span style="color: #ba372a;">在前文看到的ADC采集电路，由两个等值电阻串联对锂电池于这部分的电压进行了分压，所以ADC采集的是总电压的一半，这里进行了<em>2</span></strong></li>
<li style="line-height: 1.8; text-align: justify;"><strong>实测MCU的电压VDD/VDDA的电压：3.01V，至于减去的0.15算是误差吧（之前也试过一个HK芯片来ADC采集电压，精度到了小数点三位数，但是对现在的这个MCU进行ADC测试发现数据还存在较大误差，不知具体原因）</strong></li>
<li style="line-height: 1.8; text-align: justify;"><strong>STM32G030的ADC分辨率为12位，所以4095 = 2<sup>12</sup>-1 ，表示：内部电压3V可以分割为4095份，每份占比0.000732伏特（V），代码里的公式其实就是一个比例对换。</strong></li>
<li style="line-height: 1.8; text-align: justify;"><span style="text-decoration: underline;">注意：这里所要采集的对象，电压不能超过VDD，否则测得的电源电压不准确，因为超过测量范围！</span></li>
</ul>
<p style="line-height: 1.8;"><img style="display: block; margin-left: auto; margin-right: auto;" src="//image.lceda.cn/oshwhub/e7988a89921e422f8ff4e063d89a7fbd.png" width="1097" height="473" /></p>
<h3 style="line-height: 1.8;"><img style="display: block; margin-left: auto; margin-right: auto;" src="//image.lceda.cn/oshwhub/82f8cb4ac8bf4444ac8bc0aea262b605.png" width="1092" height="479" /></h3>
<p><img style="display: block; margin-left: auto; margin-right: auto;" src="//image.lceda.cn/oshwhub/e493d8b946424b39a74323daf2b568bc.png" width="1093" height="821" /></p>
<h3 style="line-height: 1.8;"> </h3>
<h3 style="line-height: 1.8;"></em>6、BOM清单</h3>
<hr />
<table style="border-collapse: collapse; width: 100%; height: 824.97px;" border="2px" width="100%">
<tbody>
<tr style="height: 39.1875px;">
<td style="height: 39.1875px; width: 3.57576%;" width="67" height="28"><span style="color: #169179;"><strong>编号</strong></span></td>
<td style="width: 3.09091%; height: 39.1875px;" width="71"><span style="color: #169179;"><strong>数量</strong></span></td>
<td style="width: 8.12121%; height: 39.1875px;" width="223"><span style="color: #169179;"><strong>备注</strong></span></td>
<td style="width: 16.0606%; height: 39.1875px;" width="375"><span style="color: #169179;"><strong>位号</strong></span></td>
<td style="width: 20.303%; height: 39.1875px;" width="473"><span style="color: #169179;"><strong>封装</strong></span></td>
<td style="width: 5.69697%; height: 39.1875px;" width="117"><span style="color: #169179;"><strong>数值</strong></span></td>
<td style="width: 8.06061%; height: 39.1875px;" width="175"><span style="color: #169179;"><strong>立创商城编号</strong></span></td>
<td style="width: 9.94768%; height: 39.1875px;" width="169"><span style="color: #169179;"><strong>立创商城价格</strong></span></td>
<td style="width: 17.022%; height: 39.1875px;" width="278"><span style="color: #169179;"><strong>Manufacturer</strong></span></td>
<td style="width: 8.12121%; height: 39.1875px;" width="137"><span style="color: #169179;"><strong>材料费用</strong></span></td>
</tr>
<tr style="height: 19.5938px;">
<td style="height: 19.5938px; width: 3.57576%;" height="28">1</td>
<td style="width: 3.09091%; height: 19.5938px;">9</td>
<td style="width: 8.12121%; height: 19.5938px;">100nF</td>
<td style="width: 16.0606%; height: 19.5938px;">C1,C2,C8,C10,C12,C13,C15,C17,C18</td>
<td style="width: 20.303%; height: 19.5938px;">C0603</td>
<td style="width: 5.69697%; height: 19.5938px;">100nF</td>
<td style="width: 8.06061%; height: 19.5938px;">C14663</td>
<td style="width: 9.94768%; height: 19.5938px;">0.013981</td>
<td style="width: 17.022%; height: 19.5938px;">YAGEO(国巨)</td>
<td style="width: 8.12121%; height: 19.5938px;">0.125829</td>
</tr>
<tr style="height: 19.5938px;">
<td style="height: 19.5938px; width: 3.57576%;" height="28">2</td>
<td style="width: 3.09091%; height: 19.5938px;">2</td>
<td style="width: 8.12121%; height: 19.5938px;">20pF</td>
<td style="width: 16.0606%; height: 19.5938px;">C3,C4</td>
<td style="width: 20.303%; height: 19.5938px;">C0603</td>
<td style="width: 5.69697%; height: 19.5938px;">20pF</td>
<td style="width: 8.06061%; height: 19.5938px;">C105621</td>
<td style="width: 9.94768%; height: 19.5938px;">0.014605</td>
<td style="width: 17.022%; height: 19.5938px;">YAGEO(国巨)</td>
<td style="width: 8.12121%; height: 19.5938px;">0.02921</td>
</tr>
<tr style="height: 19.5938px;">
<td style="height: 19.5938px; width: 3.57576%;" height="28">3</td>
<td style="width: 3.09091%; height: 19.5938px;">5</td>
<td style="width: 8.12121%; height: 19.5938px;">1uF</td>
<td style="width: 16.0606%; height: 19.5938px;">C5,C6,C7,C14,C16</td>
<td style="width: 20.303%; height: 19.5938px;">C0603</td>
<td style="width: 5.69697%; height: 19.5938px;">1uF</td>
<td style="width: 8.06061%; height: 19.5938px;">C59302</td>
<td style="width: 9.94768%; height: 19.5938px;">0.030538</td>
<td style="width: 17.022%; height: 19.5938px;">FH(风华)</td>
<td style="width: 8.12121%; height: 19.5938px;">0.15269</td>
</tr>
<tr style="height: 19.5938px;">
<td style="height: 19.5938px; width: 3.57576%;" height="28">4</td>
<td style="width: 3.09091%; height: 19.5938px;">2</td>
<td style="width: 8.12121%; height: 19.5938px;">10uF</td>
<td style="width: 16.0606%; height: 19.5938px;">C9,C11</td>
<td style="width: 20.303%; height: 19.5938px;">C0603</td>
<td style="width: 5.69697%; height: 19.5938px;">10uF</td>
<td style="width: 8.06061%; height: 19.5938px;">C77044</td>
<td style="width: 9.94768%; height: 19.5938px;">0.067488</td>
<td style="width: 17.022%; height: 19.5938px;">muRata(村田)</td>
<td style="width: 8.12121%; height: 19.5938px;">0.134976</td>
</tr>
<tr style="height: 39.1875px;">
<td style="height: 39.1875px; width: 3.57576%;" height="28">5</td>
<td style="width: 3.09091%; height: 39.1875px;">1</td>
<td style="width: 8.12121%; height: 39.1875px;">HC-XH-2AW-G</td>
<td style="width: 16.0606%; height: 39.1875px;">CN0</td>
<td style="width: 20.303%; height: 39.1875px;">CONN-TH_2P-P2.50_HC-XH-2AW-G</td>
<td style="width: 5.69697%; height: 39.1875px;"> </td>
<td style="width: 8.06061%; height: 39.1875px;">C5341208</td>
<td style="width: 9.94768%; height: 39.1875px;">0.107373</td>
<td style="width: 17.022%; height: 39.1875px;">HCTL(华灿天禄)</td>
<td style="width: 8.12121%; height: 39.1875px;">0.107373</td>
</tr>
<tr style="height: 19.5938px;">
<td style="height: 19.5938px; width: 3.57576%;" height="28">6</td>
<td style="width: 3.09091%; height: 19.5938px;">2</td>
<td style="width: 8.12121%; height: 19.5938px;">MBR120LSF</td>
<td style="width: 16.0606%; height: 19.5938px;">D1,D2</td>
<td style="width: 20.303%; height: 19.5938px;">SOD-123_L2.8-W1.8-LS3.7-RD</td>
<td style="width: 5.69697%; height: 19.5938px;"> </td>
<td style="width: 8.06061%; height: 19.5938px;">C130880</td>
<td style="width: 9.94768%; height: 19.5938px;">0.2192</td>
<td style="width: 17.022%; height: 19.5938px;">SHIKUES(时科)</td>
<td style="width: 8.12121%; height: 19.5938px;">0.4384</td>
</tr>
<tr style="height: 19.5938px;">
<td style="height: 19.5938px; width: 3.57576%;" height="28">7</td>
<td style="width: 3.09091%; height: 19.5938px;">1</td>
<td style="width: 8.12121%; height: 19.5938px;">BSMD0805-050-6V</td>
<td style="width: 16.0606%; height: 19.5938px;">F1</td>
<td style="width: 20.303%; height: 19.5938px;">F0805</td>
<td style="width: 5.69697%; height: 19.5938px;"> </td>
<td style="width: 8.06061%; height: 19.5938px;">C883108</td>
<td style="width: 9.94768%; height: 19.5938px;">0.276183</td>
<td style="width: 17.022%; height: 19.5938px;">BHFUSE(佰宏)</td>
<td style="width: 8.12121%; height: 19.5938px;">0.276183</td>
</tr>
<tr style="height: 19.5938px;">
<td style="height: 19.5938px; width: 3.57576%;" height="28">8</td>
<td style="width: 3.09091%; height: 19.5938px;">1</td>
<td style="width: 8.12121%; height: 19.5938px;">CBG160808U000T</td>
<td style="width: 16.0606%; height: 19.5938px;">L1</td>
<td style="width: 20.303%; height: 19.5938px;">L0603</td>
<td style="width: 5.69697%; height: 19.5938px;"> </td>
<td style="width: 8.06061%; height: 19.5938px;">C43163</td>
<td style="width: 9.94768%; height: 19.5938px;">0.024165</td>
<td style="width: 17.022%; height: 19.5938px;">FH(风华)</td>
<td style="width: 8.12121%; height: 19.5938px;">0.024165</td>
</tr>
<tr style="height: 19.5938px;">
<td style="height: 19.5938px; width: 3.57576%;" height="28">9</td>
<td style="width: 3.09091%; height: 19.5938px;">2</td>
<td style="width: 8.12121%; height: 19.5938px;">SP420281N</td>
<td style="width: 16.0606%; height: 19.5938px;">LED1,LED2</td>
<td style="width: 20.303%; height: 19.5938px;">LED-SEG-TH_SP420281N</td>
<td style="width: 5.69697%; height: 19.5938px;"> </td>
<td style="width: 8.06061%; height: 19.5938px;">C122944</td>
<td style="width: 9.94768%; height: 19.5938px;">2.1663</td>
<td style="width: 17.022%; height: 19.5938px;">ARKLED(方舟)</td>
<td style="width: 8.12121%; height: 19.5938px;">4.3326</td>
</tr>
<tr style="height: 19.5938px;">
<td style="height: 19.5938px; width: 3.57576%;" height="28">10</td>
<td style="width: 3.09091%; height: 19.5938px;">2</td>
<td style="width: 8.12121%; height: 19.5938px;">XL-1608UBC-04</td>
<td style="width: 16.0606%; height: 19.5938px;">LED3,LED4</td>
<td style="width: 20.303%; height: 19.5938px;">LED0603-RD_BLUE</td>
<td style="width: 5.69697%; height: 19.5938px;"> </td>
<td style="width: 8.06061%; height: 19.5938px;">C965807</td>
<td style="width: 9.94768%; height: 19.5938px;">0.02253</td>
<td style="width: 17.022%; height: 19.5938px;">XINGLIGHT(成兴光)</td>
<td style="width: 8.12121%; height: 19.5938px;">0.04506</td>
</tr>
<tr style="height: 19.5938px;">
<td style="height: 19.5938px; width: 3.57576%;" height="28">11</td>
<td style="width: 3.09091%; height: 19.5938px;">1</td>
<td style="width: 8.12121%; height: 19.5938px;">SZYY0603R</td>
<td style="width: 16.0606%; height: 19.5938px;">LED5</td>
<td style="width: 20.303%; height: 19.5938px;">LED0603-R-RD</td>
<td style="width: 5.69697%; height: 19.5938px;"> </td>
<td style="width: 8.06061%; height: 19.5938px;">C434419</td>
<td style="width: 9.94768%; height: 19.5938px;">0.041609</td>
<td style="width: 17.022%; height: 19.5938px;">yongyu(永裕光电)</td>
<td style="width: 8.12121%; height: 19.5938px;">0.041609</td>
</tr>
<tr style="height: 19.5938px;">
<td style="height: 19.5938px; width: 3.57576%;" height="28">12</td>
<td style="width: 3.09091%; height: 19.5938px;">1</td>
<td style="width: 8.12121%; height: 19.5938px;">XL-1608PGC-06</td>
<td style="width: 16.0606%; height: 19.5938px;">LED6</td>
<td style="width: 20.303%; height: 19.5938px;">LED0603-RD_GREEN</td>
<td style="width: 5.69697%; height: 19.5938px;"> </td>
<td style="width: 8.06061%; height: 19.5938px;">C7371905</td>
<td style="width: 9.94768%; height: 19.5938px;">0.0586</td>
<td style="width: 17.022%; height: 19.5938px;">XINGLIGHT(成兴光)</td>
<td style="width: 8.12121%; height: 19.5938px;">0.0586</td>
</tr>
<tr style="height: 19.5938px;">
<td style="height: 19.5938px; width: 3.57576%;" height="28">13</td>
<td style="width: 3.09091%; height: 19.5938px;">4</td>
<td style="width: 8.12121%; height: 19.5938px;">M2</td>
<td style="width: 16.0606%; height: 19.5938px;">P1,P2,P3,P4</td>
<td style="width: 20.303%; height: 19.5938px;">M2</td>
<td style="width: 5.69697%; height: 19.5938px;"> </td>
<td style="width: 8.06061%; height: 19.5938px;"> </td>
<td style="width: 9.94768%; height: 19.5938px;">0</td>
<td style="width: 17.022%; height: 19.5938px;"> </td>
<td style="width: 8.12121%; height: 19.5938px;">0</td>
</tr>
<tr style="height: 19.5938px;">
<td style="height: 19.5938px; width: 3.57576%;" height="28">14</td>
<td style="width: 3.09091%; height: 19.5938px;">3</td>
<td style="width: 8.12121%; height: 19.5938px;">10kΩ</td>
<td style="width: 16.0606%; height: 19.5938px;">R1,R8,R13</td>
<td style="width: 20.303%; height: 19.5938px;">R0603</td>
<td style="width: 5.69697%; height: 19.5938px;">10kΩ</td>
<td style="width: 8.06061%; height: 19.5938px;">C25804</td>
<td style="width: 9.94768%; height: 19.5938px;">0.005579</td>
<td style="width: 17.022%; height: 19.5938px;">UNI-ROYAL(厚声)</td>
<td style="width: 8.12121%; height: 19.5938px;">0.016737</td>
</tr>
<tr style="height: 19.5938px;">
<td style="height: 19.5938px; width: 3.57576%;" height="28">15</td>
<td style="width: 3.09091%; height: 19.5938px;">6</td>
<td style="width: 8.12121%; height: 19.5938px;">4.7kΩ</td>
<td style="width: 16.0606%; height: 19.5938px;">R2,R3,R4,R5,R6,R7</td>
<td style="width: 20.303%; height: 19.5938px;">R0603</td>
<td style="width: 5.69697%; height: 19.5938px;">4.7kΩ</td>
<td style="width: 8.06061%; height: 19.5938px;">C23162</td>
<td style="width: 9.94768%; height: 19.5938px;">0.006472</td>
<td style="width: 17.022%; height: 19.5938px;">UNI-ROYAL(厚声)</td>
<td style="width: 8.12121%; height: 19.5938px;">0.038832</td>
</tr>
<tr style="height: 19.5938px;">
<td style="height: 19.5938px; width: 3.57576%;" height="28">16</td>
<td style="width: 3.09091%; height: 19.5938px;">2</td>
<td style="width: 8.12121%; height: 19.5938px;">5.1kΩ</td>
<td style="width: 16.0606%; height: 19.5938px;">R9,R10</td>
<td style="width: 20.303%; height: 19.5938px;">R0603</td>
<td style="width: 5.69697%; height: 19.5938px;">5.1kΩ</td>
<td style="width: 8.06061%; height: 19.5938px;">C23186</td>
<td style="width: 9.94768%; height: 19.5938px;">0.006186</td>
<td style="width: 17.022%; height: 19.5938px;">UNI-ROYAL(厚声)</td>
<td style="width: 8.12121%; height: 19.5938px;">0.012372</td>
</tr>
<tr style="height: 19.5938px;">
<td style="height: 19.5938px; width: 3.57576%;" height="28">17</td>
<td style="width: 3.09091%; height: 19.5938px;">1</td>
<td style="width: 8.12121%; height: 19.5938px;">2.4kΩ</td>
<td style="width: 16.0606%; height: 19.5938px;">R11</td>
<td style="width: 20.303%; height: 19.5938px;">R0603</td>
<td style="width: 5.69697%; height: 19.5938px;">2.4kΩ</td>
<td style="width: 8.06061%; height: 19.5938px;">C22940</td>
<td style="width: 9.94768%; height: 19.5938px;">0.006003</td>
<td style="width: 17.022%; height: 19.5938px;">UNI-ROYAL(厚声)</td>
<td style="width: 8.12121%; height: 19.5938px;">0.006003</td>
</tr>
<tr style="height: 19.5938px;">
<td style="height: 19.5938px; width: 3.57576%;" height="28">18</td>
<td style="width: 3.09091%; height: 19.5938px;">1</td>
<td style="width: 8.12121%; height: 19.5938px;">250mΩ</td>
<td style="width: 16.0606%; height: 19.5938px;">R12</td>
<td style="width: 20.303%; height: 19.5938px;">R0603</td>
<td style="width: 5.69697%; height: 19.5938px;">250mΩ</td>
<td style="width: 8.06061%; height: 19.5938px;">C422951</td>
<td style="width: 9.94768%; height: 19.5938px;">0.022713</td>
<td style="width: 17.022%; height: 19.5938px;">UNI-ROYAL(厚声)</td>
<td style="width: 8.12121%; height: 19.5938px;">0.022713</td>
</tr>
<tr style="height: 19.5938px;">
<td style="height: 19.5938px; width: 3.57576%;" height="28">19</td>
<td style="width: 3.09091%; height: 19.5938px;">1</td>
<td style="width: 8.12121%; height: 19.5938px;">22kΩ</td>
<td style="width: 16.0606%; height: 19.5938px;">R14</td>
<td style="width: 20.303%; height: 19.5938px;">R0603</td>
<td style="width: 5.69697%; height: 19.5938px;">22kΩ</td>
<td style="width: 8.06061%; height: 19.5938px;">C31850</td>
<td style="width: 9.94768%; height: 19.5938px;">0.006147</td>
<td style="width: 17.022%; height: 19.5938px;">UNI-ROYAL(厚声)</td>
<td style="width: 8.12121%; height: 19.5938px;">0.006147</td>
</tr>
<tr style="height: 19.5938px;">
<td style="height: 19.5938px; width: 3.57576%;" height="28">20</td>
<td style="width: 3.09091%; height: 19.5938px;">1</td>
<td style="width: 8.12121%; height: 19.5938px;">GT-TC054A-H035-L1</td>
<td style="width: 16.0606%; height: 19.5938px;">SW1</td>
<td style="width: 20.303%; height: 19.5938px;">SW-SMD_L7.8-W3.5-P4.20-EH</td>
<td style="width: 5.69697%; height: 19.5938px;"> </td>
<td style="width: 8.06061%; height: 19.5938px;">C778158</td>
<td style="width: 9.94768%; height: 19.5938px;">0.24573</td>
<td style="width: 17.022%; height: 19.5938px;">G-Switch(品赞)</td>
<td style="width: 8.12121%; height: 19.5938px;">0.24573</td>
</tr>
<tr style="height: 19.5938px;">
<td style="height: 19.5938px; width: 3.57576%;" height="28">21</td>
<td style="width: 3.09091%; height: 19.5938px;">1</td>
<td style="width: 8.12121%; height: 19.5938px;">SK12D07VG3</td>
<td style="width: 16.0606%; height: 19.5938px;">SW2</td>
<td style="width: 20.303%; height: 19.5938px;">SW-TH_SK12D07VG3</td>
<td style="width: 5.69697%; height: 19.5938px;"> </td>
<td style="width: 8.06061%; height: 19.5938px;">C431547</td>
<td style="width: 9.94768%; height: 19.5938px;">0.130586</td>
<td style="width: 17.022%; height: 19.5938px;">SHOU HAN(首韩)</td>
<td style="width: 8.12121%; height: 19.5938px;">0.130586</td>
</tr>
<tr style="height: 19.5938px;">
<td style="height: 19.5938px; width: 3.57576%;" height="28">22</td>
<td style="width: 3.09091%; height: 19.5938px;">2</td>
<td style="width: 8.12121%; height: 19.5938px;">Test-Point</td>
<td style="width: 16.0606%; height: 19.5938px;">SWCLK,SWDIO</td>
<td style="width: 20.303%; height: 19.5938px;">Test-Point-0.5mm</td>
<td style="width: 5.69697%; height: 19.5938px;"> </td>
<td style="width: 8.06061%; height: 19.5938px;"> </td>
<td style="width: 9.94768%; height: 19.5938px;">0</td>
<td style="width: 17.022%; height: 19.5938px;"> </td>
<td style="width: 8.12121%; height: 19.5938px;">0</td>
</tr>
<tr style="height: 39.1875px;">
<td style="height: 39.1875px; width: 3.57576%;" height="28">23</td>
<td style="width: 3.09091%; height: 39.1875px;">1</td>
<td style="width: 8.12121%; height: 39.1875px;">STM32G030K6T6</td>
<td style="width: 16.0606%; height: 39.1875px;">U1</td>
<td style="width: 20.303%; height: 39.1875px;">LQFP-32_L7.0-W7.0-P0.80-LS9.0-BL</td>
<td style="width: 5.69697%; height: 39.1875px;"> </td>
<td style="width: 8.06061%; height: 39.1875px;">C529331</td>
<td style="width: 9.94768%; height: 39.1875px;">4.7</td>
<td style="width: 17.022%; height: 39.1875px;">ST(意法半导体)</td>
<td style="width: 8.12121%; height: 39.1875px;">4.7</td>
</tr>
<tr style="height: 39.1875px;">
<td style="height: 39.1875px; width: 3.57576%;" height="28">24</td>
<td style="width: 3.09091%; height: 39.1875px;">3</td>
<td style="width: 8.12121%; height: 39.1875px;">SN74HC595PWR</td>
<td style="width: 16.0606%; height: 39.1875px;">U2,U3,U4</td>
<td style="width: 20.303%; height: 39.1875px;">TSSOP-16_L5.0-W4.4-P0.65-LS6.4-BL</td>
<td style="width: 5.69697%; height: 39.1875px;"> </td>
<td style="width: 8.06061%; height: 39.1875px;">C273642</td>
<td style="width: 9.94768%; height: 39.1875px;">1.2759</td>
<td style="width: 17.022%; height: 39.1875px;">TI(德州仪器)</td>
<td style="width: 8.12121%; height: 39.1875px;">3.8277</td>
</tr>
<tr style="height: 19.5938px;">
<td style="height: 19.5938px; width: 3.57576%;" height="28">25</td>
<td style="width: 3.09091%; height: 19.5938px;">1</td>
<td style="width: 8.12121%; height: 19.5938px;">GT-USB-7002C</td>
<td style="width: 16.0606%; height: 19.5938px;">U5</td>
<td style="width: 20.303%; height: 19.5938px;">USB-C-SMD_GT-USB-7002C</td>
<td style="width: 5.69697%; height: 19.5938px;"> </td>
<td style="width: 8.06061%; height: 19.5938px;">C5117884</td>
<td style="width: 9.94768%; height: 19.5938px;">0.417367</td>
<td style="width: 17.022%; height: 19.5938px;">G-Switch(品赞)</td>
<td style="width: 8.12121%; height: 19.5938px;">0.417367</td>
</tr>
<tr style="height: 39.1875px;">
<td style="height: 39.1875px; width: 3.57576%;" height="28">26</td>
<td style="width: 3.09091%; height: 39.1875px;">1</td>
<td style="width: 8.12121%; height: 39.1875px;">TC4056A</td>
<td style="width: 16.0606%; height: 39.1875px;">U6</td>
<td style="width: 20.303%; height: 39.1875px;">ESOP-8_L4.9-W3.9-P1.27-LS6.0-BR-EP3.3</td>
<td style="width: 5.69697%; height: 39.1875px;"> </td>
<td style="width: 8.06061%; height: 39.1875px;">C84051</td>
<td style="width: 9.94768%; height: 39.1875px;">0.312037</td>
<td style="width: 17.022%; height: 39.1875px;">FM(富满)</td>
<td style="width: 8.12121%; height: 39.1875px;">0.312037</td>
</tr>
<tr style="height: 39.1875px;">
<td style="height: 39.1875px; width: 3.57576%;" height="28">27</td>
<td style="width: 3.09091%; height: 39.1875px;">1</td>
<td style="width: 8.12121%; height: 39.1875px;">AO3401-ED</td>
<td style="width: 16.0606%; height: 39.1875px;">U7</td>
<td style="width: 20.303%; height: 39.1875px;">SOT-23-3_L2.9-W1.3-P0.95-LS2.4-BR</td>
<td style="width: 5.69697%; height: 39.1875px;"> </td>
<td style="width: 8.06061%; height: 39.1875px;">C4748724</td>
<td style="width: 9.94768%; height: 39.1875px;">0.112913</td>
<td style="width: 17.022%; height: 39.1875px;">HXY MOSFET(华轩阳电子)</td>
<td style="width: 8.12121%; height: 39.1875px;">0.112913</td>
</tr>
<tr style="height: 19.5938px;">
<td style="height: 19.5938px; width: 3.57576%;" height="28">28</td>
<td style="width: 3.09091%; height: 19.5938px;">1</td>
<td style="width: 8.12121%; height: 19.5938px;">SHT40-AD1B-R2</td>
<td style="width: 16.0606%; height: 19.5938px;">U9</td>
<td style="width: 20.303%; height: 19.5938px;">DFN-4_L1.5-W1.5-P0.8-TL-EP</td>
<td style="width: 5.69697%; height: 19.5938px;"> </td>
<td style="width: 8.06061%; height: 19.5938px;">C2909890</td>
<td style="width: 9.94768%; height: 19.5938px;">11.51</td>
<td style="width: 17.022%; height: 19.5938px;">Sensirion(瑞士盛思锐)</td>
<td style="width: 8.12121%; height: 19.5938px;">11.51</td>
</tr>
<tr style="height: 39.1875px;">
<td style="height: 39.1875px; width: 3.57576%;" height="28">29</td>
<td style="width: 3.09091%; height: 39.1875px;">1</td>
<td style="width: 8.12121%; height: 39.1875px;">JSM6206A3.0XG</td>
<td style="width: 16.0606%; height: 39.1875px;">U10</td>
<td style="width: 20.303%; height: 39.1875px;">SOT-23-3_L2.9-W1.6-P1.90-LS2.8-BR</td>
<td style="width: 5.69697%; height: 39.1875px;"> </td>
<td style="width: 8.06061%; height: 39.1875px;">C2845116</td>
<td style="width: 9.94768%; height: 39.1875px;">0.191449</td>
<td style="width: 17.022%; height: 39.1875px;">JSMSEMI(杰盛微)</td>
<td style="width: 8.12121%; height: 39.1875px;">0.191449</td>
</tr>
<tr style="height: 20px;">
<td style="height: 20px; width: 3.57576%;" height="30">30</td>
<td style="width: 3.09091%; height: 20px;">1</td>
<td style="width: 8.12121%; height: 20px;">32.768kHz</td>
<td style="width: 16.0606%; height: 20px;">X1</td>
<td style="width: 20.303%; height: 20px;">OSC-SMD_L3.2-W1.5</td>
<td style="width: 5.69697%; height: 20px;">32.768kHz</td>
<td style="width: 8.06061%; height: 20px;">C390740</td>
<td style="width: 9.94768%; height: 20px;">1.2448</td>
<td style="width: 17.022%; height: 20px;">JGHC(晶光华)</td>
<td style="width: 8.12121%; height: 20px;">1.2448</td>
</tr>
<tr style="height: 80px;">
<td style="height: 80px; width: 3.57576%;" height="120"><span style="background-color: #ffffff;"><strong><span style="color: #e67e23;">总数：</span></strong></span></td>
<td style="text-align: left; width: 3.09091%; height: 80px;"><span style="background-color: #ffffff;"><strong><span style="color: #e67e23;">61</span></strong></span></td>
<td style="text-align: right; width: 8.12121%; height: 80px;"><span style="background-color: #ffffff;"><strong><span style="color: #e67e23;">总价：</span></strong></span></td>
<td style="width: 16.0606%; height: 80px;"><span style="background-color: #ffffff;"><strong><span style="color: #e67e23;">28.562081（不含锂电池）</span></strong></span></td>
<td style="width: 20.303%; height: 80px;" width="473"><span style="background-color: #ffffff;"><strong><span style="color: #e67e23;">MCU、sht40可以在某宝上采购，一个不到3.00元，3个数码管在某宝上也不到1.5元</span></strong></span></td>
<td style="width: 5.69697%; height: 80px;" width="117"> </td>
<td style="width: 8.06061%; height: 80px;" width="175"><span style="background-color: #ffffff;"><strong><span style="color: #e67e23;">如果不算MCU<span style="background-color: #ffffff;">、数码管</span>、sht40,那么得到：7.469403</span></strong></span></td>
<td style="width: 9.94768%; height: 80px;" width="169"><span style="background-color: #ffffff;"><strong><span style="color: #e67e23;">7.469403+3+1.5=11.969403</span></strong></span></td>
<td style="width: 17.022%; height: 80px;" width="278"><span style="background-color: #ffffff;"><strong><span style="color: #e67e23;">有些元件还可以再节省些，预估（不含锂电池）总价至少小于12元</span></strong></span></td>
<td style="width: 8.12121%; height: 80px;" width="137"> </td>
</tr>
</tbody>
</table>
<p style="line-height: 1.8;"> </p>
<h3 style="line-height: 1.8;"><em>7、大赛LOGO验证</h3>
<hr />
<p style="line-height: 1.8; text-align: center;"><img src="//image.lceda.cn/oshwhub/a157911d42da472aa165417e6250b504.png" /></p>
<p style="line-height: 1.8; text-align: center;"> </p>
<h3 style="line-height: 1.8;"></em> 8、演示您的项目并录制成视频上传</h3>
<hr />
<p style="line-height: 1.8;"> </p></p>
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