<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;">注：* 为必填项</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;"><strong><span style="color: #0093e6;">请在报名阶段填写 ↓</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> <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>这是一个能够将USB 手柄转为蓝牙手柄的设备。这样，你可以将有线的 USB 手柄变为无线的手柄进行游戏。</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> <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;"><span style="color: #95a5a6;"><span style="font-size: 14px;">原创首次公开</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;"> </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、开源协议</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;">Public Domain</p> <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;"><strong><span style="color: #0093e6;">请在竞赛阶段填写 ↓</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> <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>这次带来的方案是 ESP32 C3 配合 CH9350实现的。其中 ESP32 C3负责蓝牙，CH9350负责USB数据的解析。CH9350是 WCH （就是出品 Ch340 的那个公司）推出的USB键盘鼠标转串口通讯控制芯片。就是说USB 键盘鼠标连接到这个芯片之后，数据会转化为串口输出。关于这个芯片的功能介绍如下：</p> <ul> <li>支持12Mbps全速USB传输和1.5Mbps低速USB传输，兼容USB V2.0。</li> <li>上位机端USB端口符合标准HID类协议，不需要额外安装驱动程序，支持内置HID类设备驱动的Windows、Linux、macOS等操作系统。</li> <li>同一芯片可配置为上位机模式和下位机模式，分别连接USB-Host主机和USB键盘、鼠标。</li> <li>支持USB键盘鼠标在BIOS界面使用，支持多媒体功能键，支持不同分辨率USB鼠标。</li> <li>支持各种品牌的USB键盘鼠标、USB无线键盘鼠标、USB转PS2线等。</li> <li>上位机端和下位机端支持热插拔。</li> <li>提供发送状态引脚，支持485通讯。</li> <li>串口支持115200/57600/38400串口通信波特率。</li> <li>内置晶振和上电复位电路，外围电路简单。</li> <li>支持5V、3.3V电源电压。</li> <li>提供LQFP-48无铅封装，兼容RoHS。</li> </ul> <p>这次的方案优点是：成本比较低，体积比较小，容易DIY焊接（ESP32 C3 是我用过的最容易焊接的ESP32芯片）。能够同时支持2个USB设备，就是说你可以同时使用2个USB手柄，同时转化为蓝牙给主机使用。</p> <p>首先进行电路的设计。</p> <p>1.      主控 ESP32 C3 部分。这款主控内置了 USB 下载电路，我们设计一个 USB接口即可工作。此外，复位与下载按钮是必须的，当出现问题无法下载时，这两个按钮随时可以帮助恢复。</p> <p> </p> <p><img src="//image.lceda.cn/pullimage/bnqQMYwnGbtKRGtKj2YlxW7vxMTOZgHSXHOVHHp1.png" alt="" width="780" height="191"></p> <p> </p> <p>2.      接下来时CH9350部分，它外部电路非常简单，只需要一个 3.3uf和一个 0.1uf电容即可工作。外部的 LED1和 LED2用来指示USB工作状态，没有有效数据时会亮，有数据传输时会熄灭。其中的USB3 是一个双层USB座子，这样我们可以同时使用USB键盘鼠标。</p> <p> <img src="//image.lceda.cn/pullimage/ckPqUlIteK1Mb95TEgbHH2EYfWAmqzlBJUECwrfE.png" alt="" width="779" height="386"></p> <p> </p> <p>3.我们使用 TLV1117将5V 转为3.3V，同时还预留一个假负载，用来避免在使用充电宝供电，输出小于50ma 一段时间后自动关机的问题。</p> <p><img src="//image.lceda.cn/pullimage/H9XVxqw2Sb9wKgCNhC7uFD4psX0sEPlZ1XuPtHgb.png" alt="" width="252" height="225"><img src="//image.lceda.cn/pullimage/ucizCnznuGtrJUjvI61oJhpHTOnVYVnm5oKvorUJ.png" alt="" width="281" height="300"></p> <p>电路比较简单PCB设计也相对简单：</p> <p><img src="//image.lceda.cn/pullimage/WDit2q3bNv3hDiquKqtP0sXG13cJhvHepyCeBkAS.png" alt="" width="1430" height="949"></p> <p>预览如下：</p> <p><img src="//image.lceda.cn/pullimage/kJxR2V3CnIRdI4G65NsRnosJoQLF5oVGMPU68vWP.png" alt="" width="779" height="489"></p> <p> </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 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;">*5、软件部分</h3> <hr class="horizontal-splitline normal-bold-2"> <p>上面就是硬件设计，接下来着手软件的设计。</p> <p>这次的软件框架，可以看作是一个蓝牙HID多功能集合体的框架。蓝牙HID和USB HID 一样，都是通过 Report Descriptor告诉主机当前的数据格式。我们需要在描述符中声明2个USB手柄，实际上用到的蓝牙HID描述符就是USB 手柄的描述符，这样也能够让我们避免复杂的数据解析：当收到数据后，无需搞清楚哪一位对应什么按键，只要完整的转发出去基即可。</p> <p> </p> <p>要点如下：</p> <p> </p> <p>1.      声明2个USB 手柄描述符，为了避免解析USB手柄数据的麻烦，我们使用 USB 手柄的 HID Report 描述符，收到数据后直接转发即可无需解析</p> <p>const uint8_t report[] ={......}</p> <p> </p> <p>2.      注册给设备</p> <p> </p> <p>  hid = new BLEHIDDevice(pServer);</p> <p>  input = hid->inputReport(1); // <-- input REPORTID 1 from report map</p> <p>  input2 = hid->inputReport(2); // <-- input REPORTID 2 from report map</p> <p> </p> <p>3.  从Ch9350 串口数据中取出USB手柄数据</p> <p> </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> <p>本设计使用立创 EDA完成：</p> <p> </p> <hr class="horizontal-splitline normal-bold-2"> <table style="border-collapse: collapse; width: 480pt;" width="640"> <tr style="height: 14.4pt;"> <td style="height: 14.4pt; width: 48pt;" width="64" height="19">ID</td> <td style="width: 48pt;" width="64">Name</td> <td style="width: 48pt;" width="64">Designator</td> <td style="width: 48pt;" width="64"> <p>Fo</p> <p>otprint</p> </td> <td style="width: 48pt;" width="64">Quantity</td> <td style="width: 48pt;" width="64">Manufacturer Part</td> <td style="width: 48pt;" width="64">Manufacturer</td> <td style="width: 48pt;" width="64">Supplier</td> <td style="width: 48pt;" width="64">Supplier Part</td> <td style="width: 48pt;" width="64">Price</td> </tr> <tr style="height: 14.4pt;"> <td style="height: 14.4pt;" align="right" height="19">1</td> <td>BAU1</td> <td>BAU1</td> <td>HDR-TH_2P-P2.54-V</td> <td align="right">1</td> <td>826629-2</td> <td>TE Connectivity</td> <td>LCSC</td> <td>C86471</td> <td align="right">2.55</td> </tr> <tr style="height: 14.4pt;"> <td style="height: 14.4pt;" align="right" height="19">2</td> <td>BAU0</td> <td>BAU2</td> <td>HDR-TH_2P-P2.54-V</td> <td align="right">1</td> <td>826629-2</td> <td>TE Connectivity</td> <td>LCSC</td> <td>C86471</td> <td align="right">2.55</td> </tr> <tr style="height: 14.4pt;"> <td style="height: 14.4pt;" align="right" height="19">3</td> <td>0.1uf</td> <td>C1,C8</td> <td>C1206</td> <td align="right">2</td> <td>C1206X104K1RAC7800</td> <td>KEMET(基美)</td> <td>LCSC</td> <td>C600091</td> <td align="right">0.4961</td> </tr> <tr style="height: 14.4pt;"> <td style="height: 14.4pt;" align="right" height="19">4</td> <td>3.3uf</td> <td>C2</td> <td>C1206</td> <td align="right">1</td> <td>TCC1206X7R561K501DT</td> <td>CCTC</td> <td>LCSC</td> <td>C377112</td> <td align="right">0.0764</td> </tr> <tr style="height: 14.4pt;"> <td style="height: 14.4pt;" align="right" height="19">5</td> <td>0.1uf</td> <td>C3</td> <td>C1206</td> <td align="right">1</td> <td>TCC1206X7R561K501DT</td> <td>CCTC</td> <td>LCSC</td> <td>C377112</td> <td align="right">0.0764</td> </tr> <tr style="height: 14.4pt;"> <td style="height: 14.4pt;" align="right" height="19">6</td> <td>1uf</td> <td>C6,C7,C9,C10</td> <td>C1206</td> <td align="right">4</td> <td>C1206X104K1RAC7800</td> <td>KEMET(基美)</td> <td>LCSC</td> <td>C600091</td> <td align="right">0.4961</td> </tr> <tr style="height: 14.4pt;"> <td style="height: 14.4pt;" align="right" height="19">7</td> <td>EN</td> <td>EN1</td> <td>SW-SMD_L4.0-W2.9-LS5.0</td> <td align="right">1</td> <td>TS342A2P-WZ</td> <td>SHOU HAN</td> <td>LCSC</td> <td>C557591</td> <td align="right">0.2033</td> </tr> <tr style="height: 14.4pt;"> <td style="height: 14.4pt;" align="right" height="19">8</td> <td>Header2.0*5</td> <td>H1</td> <td>HEADER2.0*5</td> <td align="right">1</td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> </tr> <tr style="height: 14.4pt;"> <td style="height: 14.4pt;" align="right" height="19">9</td> <td>IO9</td> <td>IO9</td> <td>SW-SMD_L4.0-W2.9-LS5.0</td> <td align="right">1</td> <td>TS342A2P-WZ</td> <td>SHOU HAN</td> <td>LCSC</td> <td>C557591</td> <td align="right">0.2033</td> </tr> <tr style="height: 14.4pt;"> <td style="height: 14.4pt;" align="right" height="19">10</td> <td>204-10SURD/S530-A3-L</td> <td>LED1,LED2</td> <td>LED-TH_BD3.0-P2.54-FD</td> <td align="right">2</td> <td>204-10SURD/S530-A3-L</td> <td>EVERLIGHT(亿光)</td> <td>LCSC</td> <td>C99771</td> <td align="right">0.1609</td> </tr> <tr style="height: 14.4pt;"> <td style="height: 14.4pt;" align="right" height="19">11</td> <td>SS8050_C2150</td> <td>Q1</td> <td>SOT-23-3_L2.9-W1.3-P1.90-LS2.4-BR</td> <td align="right">1</td> <td>SS8050</td> <td>CJ</td> <td>LCSC</td> <td>C2150</td> <td align="right">0.0929</td> </tr> <tr style="height: 14.4pt;"> <td style="height: 14.4pt;" align="right" height="19">12</td> <td>10K</td> <td>R2</td> <td>R1206</td> <td align="right">1</td> <td>CR1206J405R1G</td> <td>LIZ(丽智电子)</td> <td>LCSC</td> <td>C102372</td> <td align="right">0.02</td> </tr> <tr style="height: 14.4pt;"> <td style="height: 14.4pt;" align="right" height="19">13</td> <td>1K</td> <td>R3,R4</td> <td>R1206</td> <td align="right">2</td> <td>R1206RXX102XJ04LTC</td> <td>Shenzhen Eyang Tech Development</td> <td>LCSC</td> <td>C267247</td> <td align="right">0.0243</td> </tr> <tr style="height: 14.4pt;"> <td style="height: 14.4pt;" align="right" height="19">14</td> <td align="right">20</td> <td>R5</td> <td>R1206</td> <td align="right">1</td> <td>PTFR1206B10K0P9</td> <td>ResistorToday</td> <td>LCSC</td> <td>C351536</td> <td align="right">1.2904</td> </tr> <tr style="height: 14.4pt;"> <td style="height: 14.4pt;" align="right" height="19">15</td> <td>1K</td> <td>R6</td> <td>R1206</td> <td align="right">1</td> <td>CR1206J405R1G</td> <td>LIZ(丽智电子)</td> <td>LCSC</td> <td>C102372</td> <td align="right">0.02</td> </tr> <tr style="height: 14.4pt;"> <td style="height: 14.4pt;" align="right" height="19">16</td> <td align="right">100</td> <td>R9</td> <td>R1206</td> <td align="right">1</td> <td>PTFR1206B10K0P9</td> <td>ResistorToday</td> <td>LCSC</td> <td>C351536</td> <td align="right">1.2904</td> </tr> <tr style="height: 14.4pt;"> <td style="height: 14.4pt;" align="right" height="19">17</td> <td>CH9350L</td> <td>U1</td> <td>LQFP-48_L7.0-W7.0-P0.50-LS9.0-BL</td> <td align="right">1</td> <td>CH9350L</td> <td>WCH</td> <td>LCSC</td> <td>C109472</td> <td align="right">24.5</td> </tr> <tr style="height: 14.4pt;"> <td style="height: 14.4pt;" align="right" height="19">18</td> <td>ESP32-C3-WROOM-02 模组</td> <td>U2</td> <td>ESP32-C3-WROOM-02 模组</td> <td align="right">1</td> <td>ESP32-C3-WROOM-02-H4</td> <td>espressif</td> <td>LCSC</td> <td>C2944070</td> <td align="right">18.01</td> </tr> <tr style="height: 14.4pt;"> <td style="height: 14.4pt;" align="right" height="19">19</td> <td>TLV1117LV33DCYR</td> <td>U3</td> <td>SOT-223_L6.7-W3.5-P2.30-BR</td> <td align="right">1</td> <td>TLV1117LV33DCYR</td> <td>TI</td> <td>LCSC</td> <td>C15578</td> <td align="right">0.9603</td> </tr> <tr style="height: 14.4pt;"> <td style="height: 14.4pt;" align="right" height="19">20</td> <td>Double layer DIP 90° white</td> <td>USB3</td> <td>USB-A-TH_USB-M-51</td> <td align="right">1</td> <td>Double layer DIP 90° white</td> <td>ValuePro</td> <td>LCSC</td> <td>C2341</td> <td align="right">0.8867</td> </tr> <tr style="height: 14.4pt;"> <td style="height: 14.4pt;" align="right" height="19">21</td> <td>USB-211-BCW</td> <td>USB4</td> <td>USB-A-TH_USB-211-BCW</td> <td align="right">1</td> <td>USB-211-BCW</td> <td>XUNPU</td> <td>LCSC</td> <td>C720520</td> <td align="right">0.4656</td> </tr> </table> <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;">*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/7uyRJCl7iWvxsw6CT7oqsOpDZ3NWMVwTgcb5sTZ9.jpeg" alt=""></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 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: #95a5a6; font-size: 14px;">视频要求：请横屏拍摄，分辨率不低于1280×720，格式Mp4/Mov，单个视频大小限100M内；</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: #95a5a6; font-size: 14px;">视频标题：立创电赛：{项目名称}-{视频模块名称}；如立创电赛：《自动驾驶》-团队介绍。</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: 14px;">更多详情：<a href="/posts/15a52db9fd7d40c492eb505280278e45" target="_blank">https://diy.szlcsc.com/posts/15a52db9fd7d40c492eb505280278e45</a></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> </div>