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#第十届立创电赛#无线双机文件传输器

创建时间:3周前

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<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;">* 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;">在日常工作中,经常会遇到需要在测试机和主机之间传输文件的需求。通常WIFI 是非常好的方法,但是安全规则限制,主机和测试机无法接入同一个网络中,如果能用无线将他们连接起来能够提升效率。</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: #000000; font-size: 14px; background-color: #ffffff;">原创项目首次公开</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;">* 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;"><strong class="ql-size-13">Public Domain</strong></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 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;"><span style="color: #95a5a6;"><span style="font-size: 14px;">硬件部分非常简单,可以看作是一个 ESP32 的最小系统。</span></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="color: #000000;"><span style="color: #95a5a6;"><span style="font-size: 14px;">外围只有一个 5V 转3.3V芯片。</span></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 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 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;">基本思路是:ESP32 S3 将自身模拟为 USB CDC 设备,这样插入系统后就会出现一个串口。我们使用超级终端来进行文本和文件的传输。</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;">收到的数据会放置在 USB Buffer 中,这些数据我们通过 ESP32 的 ESPNOW 发送出去。接收到之后,再通过串口传入系统中,同样又超级终端来接收。</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;">需要注意的地方是:</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;">1. Arduino 中需要修改如下2个位置</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;">a.C:\Users\USERNAME\AppData\Local\Arduino15\packages\esp32\hardware\esp32\3.2.1\cores\esp32\USBCDC.cpp 这里是USB缓冲区的大小。太小了影响效率。</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>void USBCDC::begin(unsigned long baud) {</div> <div>  if (itf >= CFG_TUD_CDC) {</div> <div>    return;</div> <div>  }</div> <div>  if (tx_lock == NULL) {</div> <div>    tx_lock = xSemaphoreCreateMutex();</div> <div>  }</div> <div>  // if rx_queue was set before begin(), keep it</div> <div>  if (!rx_queue) {</div> <div>    //ZivDebug setRxBufferSize(256);  //default if not preset</div> <div>setRxBufferSize(64*1024);  //ZivDebug 64K Buffer</div> <div>  }</div> <div>  devices[itf] = this;</div> <div>}</div> <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> <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;">b.C:\Users\USERNAME\AppData\Local\Arduino15\packages\esp32\hardware\esp32\3.2.1\cores\esp32\USB.h 这里是USB CDC Task 的栈大小,原值过小,导致使用时会重启</p> <p>class ESPUSB {<br>public:<br>  //ZivDebug  ESPUSB(size_t event_task_stack_size = 2048, uint8_t event_task_priority = 5);<br>  ESPUSB(size_t event_task_stack_size = 20480, uint8_t event_task_priority = 5);<br>  ~ESPUSB();</p> <p>  void onEvent(esp_event_handler_t callback);<br>  void onEvent(arduino_usb_event_t event, esp_event_handler_t callback);</p> <p> </p> <p>2.代码烧录需要设置如下</p> <p><img src="//image.lceda.cn/pullimage/xSJzTmZjZW0NzxZ4COaEqnFfNDIxASZjdeYqAgrg.png"></p> <p> </p> <p>3. 代码中 ESPNOW 的发送和接收写在了一起,具体使用时读取 Io10 的状态来决定自身的 Mac 地址,换句话说成对使用时,一个Io10 悬空,一个Io10 接地就可以了。</p> <p>3.Arduino 版本  1.8.16 ,  ESP32 Package 是3.2.1</p> <p> </p> <p><img src="//image.lceda.cn/pullimage/LkXKwPycD6hgQUQokGhUa8nt2jsQj2y84GQxejCZ.png"></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> <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; font-size: 14px;">请输入内容…</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="color: #95a5a6; font-size: 14px;">注:项目涉及的BOM清单。在<span style="text-decoration: underline;"><a href="https://lceda.cn/editor" target="_blank">嘉立创EDA</a> </span>生成/上传设计文件后,BOM将自动生成至项目详情;建议包括型号、品牌、名称、封装、采购渠道、用途等内容。具体内容和形式应以表达清楚项目构成为准。 </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;">*7、大赛LOGO验证</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;"><img src="//image.lceda.cn/pullimage/vp9BR5MEgQMU9pMn7OTtDqdqB1YhOeImlOX7RMN8.jpeg" alt="" width="1200" height="900"></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;"><a href="/posts/42551e8f2f2548cabc1c36626a42da94" target="_blank">前往查看更多详情 ></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>

文档

Sheet_1

PCB_#第十届立创电赛#无线双机文件传输器

BOM

ID Name Designator Footprint Quantity Manufacturer Part Manufacturer Supplier Supplier Part
1 HDR-TH-1X4-P2.54 H3 HDR-TH-1X4-P2.54 1
2 Header2.0*5 H2 HEADER2.0*5 1
3 10K R2 R1206 1 AECR1206F120KK9 ResistorToday LCSC C352156
4 22uf C5/NC,C3 C1206 2 CC1206JRNPOBBN270 YAGEO LCSC C326944
5 0.1uf C4 C1206 1 CC1206JRNPOBBN270 YAGEO LCSC C326944
6 ESP32-S3-WROOM-1U-N4 U2 WIRELM-SMD_ESP32-S3-WROOM-1U 1 ESP32-S3-WROOM-1U-N4 ESPRESSIF 乐鑫 LCSC C2980296
7 USB_Power J2 HDR-TH_2P-P2.54-V 1 826629-2 TE Connectivity LCSC C86471
8 GND J1 HDR-TH_2P-P2.54-V 1 826629-2 TE Connectivity LCSC C86471
9 USB-211-BCW USB2 USB-A-TH_USB-211-BCW 1 USB-211-BCW XUNPU(讯普) LCSC C720520
10 1uf C2,C1 C1206 2 1206F104M500NT Guangdong Fenghua Advanced Tech LCSC C313097
11 PWR U1 LED1206-FD 1 YLED1206R YONGYUTAI(永裕泰) LCSC C28310439
12 TLV1117LV33DCYR U3 SOT-223_L6.7-W3.5-P2.30-BR 1 TLV1117LV33DCYR TI LCSC C15578
13 12K R1 R1206 1 1206W4F3303T5E UniOhm LCSC C17929

附件

附件名 下载
USBSerial.ino

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