{"id":25219,"date":"2026-08-18T21:17:14","date_gmt":"2026-08-18T13:17:14","guid":{"rendered":"https:\/\/blog.iyatt.com\/?p=25219"},"modified":"2026-08-18T21:18:48","modified_gmt":"2026-08-18T13:18:48","slug":"%e5%9f%ba%e4%ba%8e-esp32-wroom-32-%e5%ae%9e%e8%b7%b5-ble-%e5%90%8c%e6%97%b6%e4%bd%9c%e4%b8%ba%e6%9c%8d%e5%8a%a1%e5%99%a8%e5%92%8c%e5%ae%a2%e6%88%b7%e7%ab%af-platformio","status":"publish","type":"post","link":"https:\/\/blog.iyatt.com\/?p=25219","title":{"rendered":"\u57fa\u4e8e ESP32-WROOM-32 \u5b9e\u8df5 BLE \u540c\u65f6\u4f5c\u4e3a\u670d\u52a1\u5668\u548c\u5ba2\u6237\u7aef \u2013 PlatformIO"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_85 ez-toc-wrap-center counter-hierarchy ez-toc-counter ez-toc-light-blue ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title ez-toc-toggle\" style=\"cursor:pointer\">\u76ee\u5f55<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-1'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/blog.iyatt.com\/?p=25219\/#%E6%B5%8B%E8%AF%95%E7%8E%AF%E5%A2%83\" >\u6d4b\u8bd5\u73af\u5883<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-1'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/blog.iyatt.com\/?p=25219\/#%E5%AE%9E%E8%B7%B5\" >\u5b9e\u8df5<\/a><\/li><\/ul><\/nav><\/div>\n<h1><span class=\"ez-toc-section\" id=\"%E6%B5%8B%E8%AF%95%E7%8E%AF%E5%A2%83\"><\/span>\u6d4b\u8bd5\u73af\u5883<span class=\"ez-toc-section-end\"><\/span><\/h1>\n<ul>\n<li>ESP32-WROOM-32<\/li>\n<li>PlatformIO IDE 3.3.4<\/li>\n<li>PlatformIO Core 6.1.19<\/li>\n<li>pioarduino platform-espressif32 55.03.311\uff08Arduino Release v3.3.11 based on ESP-IDF v5.5.5\uff09<\/li>\n<\/ul>\n<p>platformio.ini<\/p>\n<pre><code class=\"language-ini\">[env:esp32dev]\nplatform = https:\/\/github.com\/pioarduino\/platform-espressif32\/releases\/download\/55.03.311\/platform-espressif32.zip\nboard = esp32dev\nframework = arduino\nmonitor_speed = 115200<\/code><\/pre>\n<h1><span class=\"ez-toc-section\" id=\"%E5%AE%9E%E8%B7%B5\"><\/span>\u5b9e\u8df5<span class=\"ez-toc-section-end\"><\/span><\/h1>\n<p>\u6e90\u7801\u53c2\u8003\u6765\u6e90\uff1a<a href=\"https:\/\/github.com\/espressif\/arduino-esp32\/blob\/3.3.11\/libraries\/BLE\/examples\/Client_Server\/Client_Server.ino\">https:\/\/github.com\/espressif\/arduino-esp32\/blob\/3.3.11\/libraries\/BLE\/examples\/Client_Server\/Client_Server.ino<\/a><br \/>\n\u624b\u673a BLE \u8c03\u8bd5\u53c2\u8003\uff1a<a href=\"https:\/\/blog.iyatt.com\/?p=25142\">https:\/\/blog.iyatt.com\/?p=25142<\/a><\/p>\n<pre><code class=\"language-cpp\">\/*\n * BLE \u5ba2\u6237\u7aef\u4e0e\u670d\u52a1\u7aef\u5171\u5b58\u793a\u4f8b\uff08ESP32\uff09\n *\n * \u529f\u80fd\u8bf4\u660e\uff1a\n * \u6f14\u793a\u5982\u4f55\u5728\u540c\u4e00\u53f0 ESP32 \u8bbe\u5907\u4e0a\u540c\u65f6\u8fd0\u884c BLE \u670d\u52a1\u7aef (Server) \u4e0e\u5ba2\u6237\u7aef (Client) \u529f\u80fd\u3002\n * - \u4f5c\u4e3a\u670d\u52a1\u7aef\uff1a\u5e7f\u64ad\u81ea\u5b9a\u4e49\u670d\u52a1\uff0c\u76d1\u542c\u5e76\u54cd\u5e94\u5916\u90e8\u8bbe\u5907\u7684\u8bfb\u5199\u8bf7\u6c42\uff0c\u5b9a\u671f\u53d1\u9001\u901a\u77e5 (Notify)\u3002\n * - \u4f5c\u4e3a\u5ba2\u6237\u7aef\uff1a\u626b\u63cf\u5468\u56f4\u8bbe\u5907\uff0c\u53d1\u73b0\u5339\u914d\u7684\u670d\u52a1 UUID \u540e\u81ea\u52a8\u53d1\u8d77\u8fde\u63a5\uff0c\u5e76\u8bfb\u5199\u8fdc\u7a0b\u7279\u5f81\u503c\u3002\n *\/\n\n#include &lt;Arduino.h&gt;\n#include &lt;BLEDevice.h&gt;\n#include &lt;BLEUtils.h&gt;\n#include &lt;BLEServer.h&gt;\n#include &lt;BLEClient.h&gt;\n#include &lt;BLEScan.h&gt;\n\n\/\/ ==================== 1. \u5168\u5c40\u914d\u7f6e\u4e0e UUID \u5b9a\u4e49 ====================\n\n\/\/ \u670d\u52a1\u7aef\u4f7f\u7528\u7684\u81ea\u5b9a\u4e49\u670d\u52a1\u4e0e\u7279\u5f81\u503c UUID\n#define SERVER_SERVICE_UUID &quot;4fafc201-1fb5-459e-8fcc-c5c9c331914b&quot;\n#define SERVER_CHARACTERISTIC_UUID &quot;beb5483e-36e1-4688-b7f5-ea07361b26a8&quot;\n\n\/\/ \u5ba2\u6237\u7aef\u641c\u5bfb\u7684\u76ee\u6807 UUID\uff08\u6b64\u5904\u8bbe\u7f6e\u4e3a\u4e0e\u670d\u52a1\u7aef\u76f8\u540c\u7684 UUID\uff0c\u65b9\u4fbf\u4e24\u53f0 ESP32 \u4e92\u8054\uff09\nstatic BLEUUID clientServiceUUID(SERVER_SERVICE_UUID);\nstatic BLEUUID clientCharUUID(SERVER_CHARACTERISTIC_UUID);\n\n\/\/ \u670d\u52a1\u7aef\u5bf9\u8c61\u6307\u9488\nBLEServer *pServer = nullptr;                       \/\/ BLE \u670d\u52a1\u7aef\u5b9e\u4f8b\nBLECharacteristic *pServerCharacteristic = nullptr; \/\/ BLE \u670d\u52a1\u7aef\u7279\u5f81\u503c\u5b9e\u4f8b\n\n\/\/ \u5ba2\u6237\u7aef\u5bf9\u8c61\u6307\u9488\u53ca\u72b6\u6001\u6807\u5fd7\nstatic boolean doConnect = false;                      \/\/ \u662f\u5426\u51c6\u5907\u5f00\u59cb\u8fde\u63a5\u6807\u5fd7\u4f4d\nstatic boolean clientConnected = false;                \/\/ \u5ba2\u6237\u7aef\u8fde\u63a5\u72b6\u6001\u6807\u5fd7\u4f4d\nstatic BLERemoteCharacteristic *pRemoteCharacteristic; \/\/ \u8fdc\u7a0b\u670d\u52a1\u5668\u7279\u5f81\u503c\u5bf9\u8c61\u6307\u9488\nstatic BLEAdvertisedDevice *targetDevice;              \/\/ \u626b\u63cf\u5230\u7684\u76ee\u6807\u8bbe\u5907\u6307\u9488\nstatic BLEClient *pClient = nullptr;                   \/\/ BLE \u5ba2\u6237\u7aef\u5b9e\u4f8b\nBLEScan *pBLEScan = nullptr;                           \/\/ BLE \u626b\u63cf\u5668\u5b9e\u4f8b\n\n\/\/ ==================== 2. \u56de\u8c03\u51fd\u6570\u7c7b\u5b9a\u4e49 ====================\n\n\/**\n * @brief \u670d\u52a1\u7aef\u8fde\u63a5\/\u65ad\u5f00\u4e8b\u4ef6\u56de\u8c03\u7c7b\n *\/\nclass ServerCallbacks : public BLEServerCallbacks\n{\n    \/\/ \u5f53\u6709\u5ba2\u6237\u7aef\u8fde\u63a5\u5230\u672c ESP32 \u670d\u52a1\u7aef\u65f6\u89e6\u53d1\n    void onConnect(BLEServer *pServer)\n    {\n        Serial.println(&quot;\u670d\u52a1\u7aef\uff1a\u6709\u5ba2\u6237\u7aef\u6210\u529f\u8fde\u63a5&quot;);\n    }\n\n    \/\/ \u5f53\u8fde\u63a5\u5230\u672c\u670d\u52a1\u7aef\u7684\u5ba2\u6237\u7aef\u65ad\u5f00\u65f6\u89e6\u53d1\n    void onDisconnect(BLEServer *pServer)\n    {\n        Serial.println(&quot;\u670d\u52a1\u7aef\uff1a\u5ba2\u6237\u7aef\u5df2\u65ad\u5f00\u8fde\u63a5&quot;);\n        \/\/ \u5ba2\u6237\u7aef\u65ad\u5f00\u540e\u91cd\u65b0\u5f00\u542f\u5e7f\u64ad\uff0c\u4ee5\u4fbf\u5176\u4ed6\u8bbe\u5907\u518d\u6b21\u8fde\u63a5\n        BLEDevice::startAdvertising();\n    }\n};\n\n\/**\n * @brief \u670d\u52a1\u7aef\u7279\u5f81\u503c\u8bfb\u5199\u4e8b\u4ef6\u56de\u8c03\u7c7b\n *\/\nclass CharacteristicCallbacks : public BLECharacteristicCallbacks\n{\n    \/\/ \u5f53\u5916\u90e8\u5ba2\u6237\u7aef\u5411\u672c\u7279\u5f81\u503c\u5199\u5165\u6570\u636e\u65f6\u89e6\u53d1\n    void onWrite(BLECharacteristic *pCharacteristic)\n    {\n        String value = pCharacteristic-&gt;getValue();\n        Serial.print(&quot;\u670d\u52a1\u7aef\uff1a\u6536\u5230\u5199\u5165\u6570\u636e\uff0c\u5185\u5bb9\u4e3a: &quot;);\n        Serial.println(value.c_str());\n    }\n\n    \/\/ \u5f53\u5916\u90e8\u5ba2\u6237\u7aef\u8bfb\u53d6\u672c\u7279\u5f81\u503c\u65f6\u89e6\u53d1\n    void onRead(BLECharacteristic *pCharacteristic)\n    {\n        Serial.println(&quot;\u670d\u52a1\u7aef\uff1a\u7279\u5f81\u503c\u88ab\u5916\u90e8\u8bbe\u5907\u8bfb\u53d6&quot;);\n    }\n};\n\n\/**\n * @brief \u5ba2\u6237\u7aef\u8fde\u63a5\/\u65ad\u5f00\u4e8b\u4ef6\u56de\u8c03\u7c7b\n *\/\nclass ClientCallbacks : public BLEClientCallbacks\n{\n    \/\/ \u5f53\u672c\u5ba2\u6237\u7aef\u6210\u529f\u8fde\u63a5\u5230\u8fdc\u7a0b\u670d\u52a1\u5668\u65f6\u89e6\u53d1\n    void onConnect(BLEClient *pClient)\n    {\n        Serial.println(&quot;\u5ba2\u6237\u7aef\uff1a\u6210\u529f\u8fde\u63a5\u5230\u8fdc\u7a0b\u670d\u52a1\u5668&quot;);\n        clientConnected = true;\n    }\n\n    \/\/ \u5f53\u4e0e\u8fdc\u7a0b\u670d\u52a1\u5668\u65ad\u5f00\u8fde\u63a5\u65f6\u89e6\u53d1\n    void onDisconnect(BLEClient *pClient)\n    {\n        Serial.println(&quot;\u5ba2\u6237\u7aef\uff1a\u4e0e\u8fdc\u7a0b\u670d\u52a1\u5668\u65ad\u5f00\u8fde\u63a5&quot;);\n        clientConnected = false;\n    }\n};\n\n\/**\n * @brief \u5ba2\u6237\u7aef\u63a5\u6536 Notify\uff08\u901a\u77e5\uff09\u6570\u636e\u7684\u56de\u8c03\u51fd\u6570\n * @param pBLERemoteCharacteristic \u89e6\u53d1\u901a\u77e5\u7684\u7279\u5f81\u503c\u6307\u9488\n * @param pData \u6570\u636e\u5185\u5bb9\u6307\u9488\n * @param length \u6570\u636e\u5b57\u8282\u957f\u5ea6\n * @param isNotify \u662f\u5426\u4e3a Notify\uff08\u901a\u77e5\uff09\u6a21\u5f0f\n *\/\nstatic void notifyCallback(BLERemoteCharacteristic *pBLERemoteCharacteristic, uint8_t *pData, size_t length, bool isNotify)\n{\n    Serial.print(&quot;\u5ba2\u6237\u7aef\uff1a\u6536\u5230\u7279\u5f81\u503c &quot;);\n    Serial.print(pBLERemoteCharacteristic-&gt;getUUID().toString().c_str());\n    Serial.print(&quot; \u7684\u901a\u77e5\uff0c\u6570\u636e\u957f\u5ea6: &quot;);\n    Serial.println(length);\n    Serial.print(&quot;\u5ba2\u6237\u7aef\uff1a\u6536\u5230\u6570\u636e: &quot;);\n    Serial.write(pData, length);\n    Serial.println();\n}\n\n\/**\n * @brief \u5ba2\u6237\u7aef\u626b\u63cf\u53d1\u73b0\u65b0\u8bbe\u5907\u65f6\u7684\u56de\u8c03\u7c7b\n *\/\nclass AdvertisedDeviceCallbacks : public BLEAdvertisedDeviceCallbacks\n{\n    \/\/ \u6bcf\u626b\u63cf\u5230\u4e00\u4e2a\u5e7f\u64ad\u8bbe\u5907\u65f6\u90fd\u4f1a\u8c03\u7528\u6b64\u65b9\u6cd5\n    void onResult(BLEAdvertisedDevice advertisedDevice)\n    {\n        Serial.print(&quot;\u5ba2\u6237\u7aef\uff1a\u626b\u63cf\u5230\u8bbe\u5907: &quot;);\n        Serial.println(advertisedDevice.toString().c_str());\n\n        \/\/ \u5224\u65ad\u626b\u63cf\u5230\u7684\u8bbe\u5907\u662f\u5426\u5305\u542b\u6211\u4eec\u6b63\u5728\u5bfb\u627e\u7684\u76ee\u6807\u670d\u52a1 UUID\uff0c\u4e14\u5f53\u524d\u672a\u5904\u4e8e\u8fde\u63a5\u72b6\u6001\n        if (advertisedDevice.haveServiceUUID() &amp;&amp; advertisedDevice.isAdvertisingService(clientServiceUUID) &amp;&amp; !clientConnected)\n        {\n\n            Serial.println(&quot;\u5ba2\u6237\u7aef\uff1a\u627e\u5230\u5305\u542b\u76ee\u6807\u670d\u52a1\u7684\u8bbe\u5907\uff0c\u505c\u6b62\u626b\u63cf\u5e76\u51c6\u5907\u5efa\u7acb\u8fde\u63a5...&quot;);\n            BLEDevice::getScan()-&gt;stop();                             \/\/ \u505c\u6b62\u626b\u63cf\u4ee5\u91ca\u653e BLE \u8d44\u6e90\n            targetDevice = new BLEAdvertisedDevice(advertisedDevice); \/\/ \u6682\u5b58\u8bbe\u5907\u4fe1\u606f\n            doConnect = true;                                         \/\/ \u8bbe\u7f6e\u6807\u5fd7\u4f4d\uff0c\u544a\u77e5 loop() \u53d1\u8d77\u8fde\u63a5\n        }\n    }\n};\n\n\/\/ ==================== 3. \u6838\u5fc3\u529f\u80fd\u51fd\u6570 ====================\n\n\/**\n * @brief \u5ba2\u6237\u7aef\u53d1\u8d77\u8fde\u63a5\u4e0e\u670d\u52a1\u641c\u5bfb\u7684\u51fd\u6570\n * @return true \u8fde\u63a5\u5e76\u6210\u529f\u83b7\u53d6\u7279\u5f81\u503c\uff1bfalse \u8fde\u63a5\u6216\u641c\u5bfb\u5931\u8d25\n *\/\nbool connectToServer()\n{\n    Serial.print(&quot;\u5ba2\u6237\u7aef\uff1a\u6b63\u5728\u5c1d\u8bd5\u8fde\u63a5\u5230\u8bbe\u5907 &quot;);\n    Serial.println(targetDevice-&gt;getAddress().toString().c_str());\n\n    \/\/ \u5982\u679c\u5ba2\u6237\u7aef\u672a\u521b\u5efa\u5219\u5b9e\u4f8b\u5316\uff0c\u5df2\u521b\u5efa\u5219\u590d\u7528\n    if (pClient == nullptr)\n    {\n        pClient = BLEDevice::createClient();\n        pClient-&gt;setClientCallbacks(new ClientCallbacks());\n        Serial.println(&quot;\u5ba2\u6237\u7aef\uff1a\u5df2\u521b\u5efa\u65b0\u7684 BLEClient \u5b9e\u4f8b&quot;);\n    }\n    else\n    {\n        Serial.println(&quot;\u5ba2\u6237\u7aef\uff1a\u590d\u7528\u73b0\u6709\u7684 BLEClient \u5b9e\u4f8b&quot;);\n    }\n\n    \/\/ \u53d1\u8d77\u5bf9\u76ee\u6807\u7684\u7269\u7406\u8fde\u63a5\n    if (!pClient-&gt;connect(targetDevice))\n    {\n        Serial.println(&quot;\u5ba2\u6237\u7aef\uff1a\u5efa\u7acb\u8fde\u63a5\u5931\u8d25&quot;);\n        return false;\n    }\n\n    Serial.println(&quot;\u5ba2\u6237\u7aef\uff1a\u7269\u7406\u8fde\u63a5\u5efa\u7acb\u6210\u529f&quot;);\n    pClient-&gt;setMTU(517); \/\/ \u8bf7\u6c42\u6700\u5927 MTU (\u4f20\u8f93\u5355\u5143) \u63d0\u5347\u6570\u636e\u4f20\u8f93\u6548\u7387\n\n    \/\/ \u5728\u8fdc\u7a0b\u670d\u52a1\u5668\u4e0a\u641c\u5bfb\u76ee\u6807\u670d\u52a1\n    BLERemoteService *pRemoteService = pClient-&gt;getService(clientServiceUUID);\n    if (pRemoteService == nullptr)\n    {\n        Serial.print(&quot;\u5ba2\u6237\u7aef\uff1a\u672a\u80fd\u627e\u5230\u6307\u5b9a\u670d\u52a1 UUID: &quot;);\n        Serial.println(clientServiceUUID.toString().c_str());\n        pClient-&gt;disconnect();\n        return false;\n    }\n    Serial.println(&quot;\u5ba2\u6237\u7aef\uff1a\u5df2\u627e\u5230\u76ee\u6807\u670d\u52a1&quot;);\n\n    \/\/ \u5728\u76ee\u6807\u670d\u52a1\u4e0b\u83b7\u53d6\u5bf9\u5e94\u7684\u7279\u5f81\u503c\n    pRemoteCharacteristic = pRemoteService-&gt;getCharacteristic(clientCharUUID);\n    if (pRemoteCharacteristic == nullptr)\n    {\n        Serial.print(&quot;\u5ba2\u6237\u7aef\uff1a\u672a\u80fd\u627e\u5230\u6307\u5b9a\u7279\u5f81\u503c UUID: &quot;);\n        Serial.println(clientCharUUID.toString().c_str());\n        pClient-&gt;disconnect();\n        return false;\n    }\n    Serial.println(&quot;\u5ba2\u6237\u7aef\uff1a\u5df2\u627e\u5230\u76ee\u6807\u7279\u5f81\u503c&quot;);\n\n    \/\/ \u5982\u679c\u7279\u5f81\u503c\u652f\u6301\u201c\u8bfb\u201d\u5c5e\u6027\uff0c\u5c1d\u8bd5\u8bfb\u53d6\u4e00\u6b21\u521d\u59cb\u503c\n    if (pRemoteCharacteristic-&gt;canRead())\n    {\n        String value = pRemoteCharacteristic-&gt;readValue();\n        Serial.print(&quot;\u5ba2\u6237\u7aef\uff1a\u8bfb\u53d6\u5230\u7684\u521d\u59cb\u7279\u5f81\u503c: &quot;);\n        Serial.println(value.c_str());\n    }\n\n    \/\/ \u5982\u679c\u7279\u5f81\u503c\u652f\u6301\u201c\u901a\u77e5\u201d\u5c5e\u6027\uff0c\u6ce8\u518c Notify \u56de\u8c03\u51fd\u6570\n    if (pRemoteCharacteristic-&gt;canNotify())\n    {\n        pRemoteCharacteristic-&gt;registerForNotify(notifyCallback);\n        Serial.println(&quot;\u5ba2\u6237\u7aef\uff1a\u5df2\u6210\u529f\u8ba2\u9605 Notify \u901a\u77e5&quot;);\n    }\n\n    return true;\n}\n\n\/**\n * @brief \u521d\u59cb\u5316\u914d\u7f6e BLE \u670d\u52a1\u7aef\n *\/\nvoid setupServer()\n{\n    Serial.println(&quot;\u6b63\u5728\u914d\u7f6e BLE \u670d\u52a1\u7aef...&quot;);\n\n    \/\/ \u521b\u5efa\u670d\u52a1\u7aef\u5b9e\u4f8b\u5e76\u8bbe\u7f6e\u56de\u8c03\n    pServer = BLEDevice::createServer();\n    pServer-&gt;setCallbacks(new ServerCallbacks());\n\n    \/\/ \u521b\u5efa\u670d\u52a1\n    BLEService *pService = pServer-&gt;createService(SERVER_SERVICE_UUID);\n\n    \/\/ \u521b\u5efa\u7279\u5f81\u503c\uff08\u6388\u4e88 \u8bfb\u3001\u5199\u3001\u901a\u77e5 \u5c5e\u6027\uff09\n    pServerCharacteristic = pService-&gt;createCharacteristic(\n        SERVER_CHARACTERISTIC_UUID,\n        BLECharacteristic::PROPERTY_READ |\n            BLECharacteristic::PROPERTY_WRITE |\n            BLECharacteristic::PROPERTY_NOTIFY);\n\n    \/\/ \u8bbe\u7f6e\u7279\u5f81\u503c\u56de\u8c03\u4e0e\u521d\u59cb\u503c\n    pServerCharacteristic-&gt;setCallbacks(new CharacteristicCallbacks());\n    pServerCharacteristic-&gt;setValue(&quot;Hello from Coexistence Server&quot;);\n\n    \/\/ \u542f\u52a8\u670d\u52a1\n    pService-&gt;start();\n\n    \/\/ \u914d\u7f6e\u5e76\u542f\u52a8 BLE \u5e7f\u64ad\n    BLEAdvertising *pAdvertising = BLEDevice::getAdvertising();\n    pAdvertising-&gt;addServiceUUID(SERVER_SERVICE_UUID); \/\/ \u5c06\u670d\u52a1\u7aef UUID \u6dfb\u52a0\u5230\u5e7f\u64ad\u6570\u636e\u4e2d\n    pAdvertising-&gt;setScanResponse(true);               \/\/ \u5f00\u542f\u626b\u63cf\u54cd\u5e94\n    pAdvertising-&gt;setMinPreferred(0x06);               \/\/ \u8bbe\u7f6e\u8fde\u63a5\u95f4\u9694\u504f\u597d\u503c\uff08\u4f18\u5316 iOS \u8fde\u63a5\u517c\u5bb9\u6027\uff09\n    pAdvertising-&gt;setMinPreferred(0x12);\n\n    BLEDevice::startAdvertising();\n\n    Serial.println(&quot;\u670d\u52a1\u7aef\uff1a\u5e7f\u64ad\u5df2\u542f\u52a8&quot;);\n}\n\n\/**\n * @brief \u521d\u59cb\u5316\u914d\u7f6e BLE \u5ba2\u6237\u7aef\u626b\u63cf\u5668\n *\/\nvoid setupClient()\n{\n    Serial.println(&quot;\u6b63\u5728\u914d\u7f6e BLE \u5ba2\u6237\u7aef...&quot;);\n\n    \/\/ \u914d\u7f6e\u626b\u63cf\u5668\u5c5e\u6027\n    pBLEScan = BLEDevice::getScan();\n    pBLEScan-&gt;setAdvertisedDeviceCallbacks(new AdvertisedDeviceCallbacks());\n    pBLEScan-&gt;setActiveScan(true); \/\/ \u4e3b\u52a8\u626b\u63cf\u6a21\u5f0f\uff08\u6d88\u8017\u66f4\u591a\u529f\u7387\uff0c\u4f46\u53ef\u83b7\u5f97\u626b\u63cf\u54cd\u5e94\uff09\n    pBLEScan-&gt;setInterval(100);    \/\/ \u626b\u63cf\u95f4\u9694 (ms)\n    pBLEScan-&gt;setWindow(99);       \/\/ \u626b\u63cf\u7a97\u53e3 (ms)\n\n    Serial.println(&quot;\u5ba2\u6237\u7aef\uff1a\u626b\u63cf\u5668\u914d\u7f6e\u5b8c\u6210&quot;);\n}\n\n\/\/ ==================== 4. Arduino \u4e3b\u5165\u53e3 ====================\n\nvoid setup()\n{\n    Serial.begin(115200);\n    Serial.println(&quot;\u542f\u52a8 BLE \u5ba2\u6237\u7aef-\u670d\u52a1\u7aef\u5171\u5b58\u793a\u4f8b...&quot;);\n\n    \/\/ \u5168\u5c40\u521d\u59cb\u5316 BLE \u8bbe\u5907\u5e76\u547d\u540d\n    BLEDevice::init(&quot;ESP32-Coexistence&quot;);\n\n    \/\/ \u5206\u522b\u521d\u59cb\u5316\u670d\u52a1\u7aef\u548c\u5ba2\u6237\u7aef\n    setupServer();\n    setupClient();\n\n    \/\/ \u542f\u52a8\u9996\u6b21\u626b\u63cf\uff08\u626b\u63cf 10 \u79d2\uff0c\u975e\u6301\u7eed\u91cd\u590d\u6a21\u5f0f\uff09\n    pBLEScan-&gt;start(10, false);\n\n    Serial.println(&quot;\u521d\u59cb\u5316\u5b8c\u6210\uff01\u8bbe\u5907\u6b63\u5728\u4f5c\u4e3a\u670d\u52a1\u7aef\u5e7f\u64ad\uff0c\u540c\u65f6\u4f5c\u4e3a\u5ba2\u6237\u7aef\u626b\u63cf...&quot;);\n}\n\nvoid loop()\n{\n    static unsigned long lastServerUpdate = 0;\n    static unsigned long lastClientWrite = 0;\n    static unsigned long lastScanStart = 0;\n    unsigned long currentTime = millis();\n\n    \/\/ --- \u903b\u8f91 1\uff1a\u5904\u7406\u5ba2\u6237\u7aef\u8fde\u63a5\u8bf7\u6c42 ---\n    if (doConnect &amp;&amp; !clientConnected)\n    {\n        if (connectToServer())\n        {\n            Serial.println(&quot;\u5ba2\u6237\u7aef\uff1a\u5df2\u6210\u529f\u8fde\u63a5\u81f3\u8fdc\u7a0b\u670d\u52a1\u7aef&quot;);\n        }\n        else\n        {\n            Serial.println(&quot;\u5ba2\u6237\u7aef\uff1a\u8fde\u63a5\u5931\u8d25\uff0c\u51c6\u5907\u91cd\u65b0\u542f\u52a8\u626b\u63cf&quot;);\n            pBLEScan-&gt;start(10, false); \/\/ \u8fde\u63a5\u5931\u8d25\u65f6\u91cd\u65b0\u5f00\u542f\u626b\u63cf\n        }\n        doConnect = false; \/\/ \u91cd\u7f6e\u89e6\u53d1\u6807\u5fd7\n    }\n\n    \/\/ --- \u903b\u8f91 2\uff1a\u670d\u52a1\u7aef\u5b9a\u671f\u66f4\u65b0\u5e76\u63a8\u9001\u6570\u636e\uff08\u6bcf 5 \u79d2\uff09---\n    if (currentTime - lastServerUpdate &gt; 5000)\n    {\n        String value = &quot;Server time: &quot; + String(millis() \/ 1000);\n        pServerCharacteristic-&gt;setValue(value.c_str());\n        pServerCharacteristic-&gt;notify(); \/\/ \u5411\u6240\u6709\u5df2\u8fde\u63a5\u672c\u670d\u52a1\u7aef\u7684\u8bbe\u5907\u53d1\u9001\u6570\u636e\u901a\u77e5\n        Serial.print(&quot;\u670d\u52a1\u7aef\uff1a\u66f4\u65b0\u7279\u5f81\u503c\u5e76\u53d1\u9001 Notify: &quot;);\n        Serial.println(value);\n\n        lastServerUpdate = currentTime;\n    }\n\n    \/\/ --- \u903b\u8f91 3\uff1a\u5ba2\u6237\u7aef\u5b9a\u671f\u5411\u8fdc\u7a0b\u670d\u52a1\u5668\u5199\u5165\u6570\u636e\uff08\u6bcf 3 \u79d2\uff09---\n    if (clientConnected &amp;&amp; pRemoteCharacteristic &amp;&amp; currentTime - lastClientWrite &gt; 3000)\n    {\n        if (pRemoteCharacteristic-&gt;canWrite())\n        {\n            String clientValue = &quot;Client msg: &quot; + String(millis() \/ 1000);\n            pRemoteCharacteristic-&gt;writeValue(clientValue.c_str(), clientValue.length());\n            Serial.print(&quot;\u5ba2\u6237\u7aef\uff1a\u5411\u8fdc\u7a0b\u7279\u5f81\u503c\u5199\u5165\u6570\u636e: &quot;);\n            Serial.println(clientValue);\n            lastClientWrite = currentTime;\n        }\n    }\n\n    \/\/ --- \u903b\u8f91 4\uff1a\u672a\u8fde\u63a5\u65f6\u5b9a\u671f\u91cd\u65b0\u89e6\u53d1\u626b\u63cf\uff08\u6bcf 15 \u79d2\uff09---\n    if (!clientConnected &amp;&amp; currentTime - lastScanStart &gt; 15000)\n    {\n        Serial.println(&quot;\u5ba2\u6237\u7aef\uff1a\u91cd\u65b0\u5f00\u59cb\u626b\u63cf\u5468\u56f4\u8bbe\u5907...&quot;);\n        pBLEScan-&gt;start(10, false);\n        lastScanStart = currentTime;\n    }\n\n    delay(100); \/\/ \u9002\u5f53\u4e3b\u5faa\u73af\u5ef6\u8fdf\uff0c\u907f\u514d\u4e3b\u7ebf\u7a0b\u8fc7\u8f7d\n}<\/code><\/pre>\n<p>\u5728\u4f5c\u4e3a\u670d\u52a1\u5668\u7684\u540c\u65f6\u4e5f\u53ef\u4ee5\u4f5c\u4e3a\u5ba2\u6237\u7aef\u8fde\u63a5\u522b\u7684\u8bbe\u5907<br \/>\n<img decoding=\"async\" data-src=\"https:\/\/blog.iyatt.com\/wp-content\/uploads\/2026\/08\/image-1787059090744.png\" alt=\"file\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" class=\"lazyload\" style=\"--smush-placeholder-width: 387px; --smush-placeholder-aspect-ratio: 387\/108;\" \/><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6d4b\u8bd5\u73af\u5883 ESP32-WROOM-32 PlatformIO IDE 3.3.4 PlatformIO Cor [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"zakra_page_container_layout":"customizer","zakra_page_sidebar_layout":"customizer","zakra_remove_content_margin":false,"zakra_sidebar":"customizer","zakra_transparent_header":"customizer","zakra_logo":0,"zakra_main_header_style":"default","zakra_menu_item_color":"","zakra_menu_item_hover_color":null,"zakra_menu_item_active_color":null,"zakra_menu_active_style":"","zakra_page_header":true,"_lmt_disableupdate":"no","_lmt_disable":"no","footnotes":""},"categories":[1,603,589,604,647,599],"tags":[1503,1467,2216,2215,2214,1468],"class_list":["post-25219","post","type-post","status-publish","format-standard","hentry","category-all","category-arduino","category-c-c","category-esp32","category-platformio","category-599","tag-ble","tag-esp32","tag-gatt","tag-2215","tag-2214","tag-1468"],"modified_by":"IYATT-yx","_links":{"self":[{"href":"https:\/\/blog.iyatt.com\/index.php?rest_route=\/wp\/v2\/posts\/25219","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.iyatt.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.iyatt.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.iyatt.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.iyatt.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=25219"}],"version-history":[{"count":3,"href":"https:\/\/blog.iyatt.com\/index.php?rest_route=\/wp\/v2\/posts\/25219\/revisions"}],"predecessor-version":[{"id":25223,"href":"https:\/\/blog.iyatt.com\/index.php?rest_route=\/wp\/v2\/posts\/25219\/revisions\/25223"}],"wp:attachment":[{"href":"https:\/\/blog.iyatt.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=25219"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.iyatt.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=25219"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.iyatt.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=25219"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}