<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;"><strong>* 1、项目功能介绍</strong></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;"><span style="background-color: #ffffff;">本次训练营制作的温湿度传感器使用的主控芯片是<strong>STM32G030K6T6</strong>芯片，这款芯片微控制器基于高性能ArmCortex-M0+32位RISC内核，工作频率高达64 MHz。可在-40至85°C的环境温度和2.0 V至3.6 V的电源电压下工作。</span><span style="background-color: #ffffff;">它们具有高集成度，适用于消费、工业和家电领域的广泛应用。</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="background-color: #ffffff;">此次的温湿度检测仪可以用于高精度的温湿度检测，体积较小，方便携带，并且采用按键按压唤醒检测，平时都处于休眠状态，功耗较低。</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" style="line-height: 1.8;">*2、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;"><span style="font-size: 12pt;">2-1 整体原理图设计：</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;"><img style="display: block; margin-left: auto; margin-right: auto;" src="//image.lceda.cn/oshwhub/1d3f7034d3844a68a902e37330053901.png" alt="" width="1027" height="726"></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: 12pt;">2-2 主控电路</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: 12pt;"><img style="display: block; margin-left: auto; margin-right: auto;" src="//image.lceda.cn/oshwhub/0e12d9e6d3a744db8734c21f386f08e8.png" alt="" width="855" height="347"></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: 12pt;">利用L1磁珠和C2电容来达到滤波的目的，使主控电路来获得一个较为干净的供电。主控外围的引脚连接按照产品手册中的引脚定义使用。</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: 12pt;">2-3 晶振模块</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: 12pt;"><img style="display: block; margin-left: auto; margin-right: auto;" src="//image.lceda.cn/oshwhub/e8d186260a3e4576a36c0ce1f71c7c78.png" alt="" width="381" height="302"></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: 12pt;">使用的是32.768kHz的时钟晶振，可以使温湿度检测仪具有计时功能，也方便后续功能的扩展，在这里使用的是芯片里面的内部晶振。</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: 12pt;">2-4 STC温湿度传感器模块</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;"><img style="display: block; margin-left: auto; margin-right: auto;" src="//image.lceda.cn/oshwhub/456fbc8883eb4196ba1f8bc9c48edd34.png" alt="" width="475" height="375"></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: 12pt;">由于模块没有上拉电阻，所以要先加上两个4.7k的上拉电阻，该传感器可以支持1.08V~3.6V的供电。SHT40是盛思锐生产的第四代，高精度，超低功耗的16位相对湿度和温度传感器，主要特性参数：相对湿度精度可以达到：±1.5%RH，温度精度可以达到：±0.1℃，平均的工作电流：0.4μA，空闲电流：80nA，工作范围：0-100%RH，-40-125℃，可以满足日常的温湿度测量需求。</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: 12pt; color: #e03e2d;">该传感器体积较小，不易焊接，故采用了直插的形式，不过要注意引脚的对应位置，要是插反了会导致传感器模块损坏。</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;"><img style="display: block; margin-left: auto; margin-right: auto;" src="//image.lceda.cn/oshwhub/1c1043217f6246e5950f5238e0418130.png" alt="" width="343" height="296"></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: 12pt;">2-5 三态输出8位移位寄存器</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;"><img style="display: block; margin-left: auto; margin-right: auto;" src="//image.lceda.cn/oshwhub/297b1ceb9fb947bca863af6d022b0eb1.png" alt="" width="865" height="163"></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: 12pt;">为了去点亮多个数码管，这边选择了三个SN74HC595PWR来连接数码管进行显示。</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 pap-left-indent-1.6em" style="line-height: 1.8;"><span style="font-size: 12pt;">如果后续数码管显示不全可能出现的原因：1.移位寄存器存在连锡、漏锡。2.数码管焊接不全。</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: 12pt;">2-6 唤醒按键</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: 12pt;"><img style="display: block; margin-left: auto; margin-right: auto;" src="//image.lceda.cn/oshwhub/01c4010403414d439c240855e0d5b69f.png" alt="" width="434" height="109"></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: 12pt;">为了使该温湿度检测仪低功耗，平时处于休眠状态，按下按键开始进行温湿度的检测。</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: 12pt;">2-7 测试LED</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: 12pt;"><img style="display: block; margin-left: auto; margin-right: auto;" src="//image.lceda.cn/oshwhub/3a36f4927f6846d693cbf964ad184adb.png" alt="" width="568" height="193"></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: 12pt;">LED的作用是在后续代码编写时方便进行测试。</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: 12pt;">2-8 共阴极3位数码管</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;"><img style="display: block; margin-left: auto; margin-right: auto;" src="//image.lceda.cn/oshwhub/7ac843a8fbd14ca4bd7a0b8eadd5f911.png" alt="" width="652" height="260"></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: 12pt;">数码管用来显示温度和湿度。</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: 12pt;">2-9 两节5号电池盒+防反接保护</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: 12pt;"><img style="display: block; margin-left: auto; margin-right: auto;" src="//image.lceda.cn/oshwhub/7681d79aad5e4b5b8d843e71ebfdec65.png" alt="" width="720" height="289"></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: 12pt;">用于给整个电路提供3V的电源。</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: 12pt;">2-10 SWD下载调试接口</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: 12pt;"><img style="display: block; margin-left: auto; margin-right: auto;" src="//image.lceda.cn/oshwhub/38962b743a74446697bc3e332bae5505.png" alt="" width="475" height="211"></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: 12pt;">用于程序的烧录。</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" style="line-height: 1.8;">*3、焊接部分</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;">贴片焊接部分采用了加热板，先在PCB板的焊接处涂上锡膏，将元件按正确位置摆上，之后放上加热板接电进行加热。</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;"><img style="display: block; margin-left: auto; margin-right: auto;" src="//image.lceda.cn/oshwhub/f8662dbb03c94e028a4dcb5d9bb34fd5.jpg" alt="" width="577" height="387"></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、PCB展示</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 style="display: block; margin-left: auto; margin-right: auto;" src="//image.lceda.cn/oshwhub/d6d2c894e6f94422825f4363346a31f9.png" alt="" width="721" height="451"></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;">顶层</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 style="display: block; margin-left: auto; margin-right: auto;" src="//image.lceda.cn/oshwhub/e75e77d9a02d4dcc80af94bb50426177.png" alt="" width="729" height="416">底层</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、代码和烧录部分</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;">代码部分直接使用本次活动训练营提供的代码，使用ST-Link连接电路板和电脑，将程序直接烧录。</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;"><img style="display: block; margin-left: auto; margin-right: auto;" src="//image.lceda.cn/oshwhub/557da7f1cb0c4fb9a073a5a18c9f2cfc.jpg" alt="" width="611" height="458"></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;">ST-Link烧录器</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、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 style="display: block; margin-left: auto; margin-right: auto;" src="//image.lceda.cn/oshwhub/39f6a67605d949d7bdb4a2ba107ead5a.jpg" alt="" width="516" height="612"></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;">* 8、演示您的项目并录制成视频上传</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> </div>