{"id":25142,"date":"2026-08-09T23:11:40","date_gmt":"2026-08-09T15:11:40","guid":{"rendered":"https:\/\/blog.iyatt.com\/?p=25142"},"modified":"2026-08-09T23:12:29","modified_gmt":"2026-08-09T15:12:29","slug":"%e5%9f%ba%e4%ba%8e-esp32-wroom-32-%e5%ae%9e%e8%b7%b5-ble-%e5%ae%a2%e6%88%b7%e7%ab%af-platformio","status":"publish","type":"post","link":"https:\/\/blog.iyatt.com\/?p=25142","title":{"rendered":"\u57fa\u4e8e ESP32-WROOM-32 \u5b9e\u8df5 BLE \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=25142\/#%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=25142\/#%E6%9C%8D%E5%8A%A1%E7%AB%AF\" >\u670d\u52a1\u7aef<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-1'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/blog.iyatt.com\/?p=25142\/#%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=\"%E6%9C%8D%E5%8A%A1%E7%AB%AF\"><\/span>\u670d\u52a1\u7aef<span class=\"ez-toc-section-end\"><\/span><\/h1>\n<p>\u5de5\u5177\u89c1\uff1a<a href=\"https:\/\/blog.iyatt.com\/?p=25020\">https:\/\/blog.iyatt.com\/?p=25020<\/a><br \/>\n\u6211\u8fd9\u91cc\u662f Android \u624b\u673a\uff0c\u4f7f\u7528 nRF Connect \u5f00\u84dd\u7259\u670d\u52a1\u5668\u6765\u4f9b ESP32 \u8fde\u63a5\u3002<\/p>\n<p>\u70b9\u5f00\u5de6\u4e0a\u89d2\u7684\u4e09\u6760\uff0c\u70b9\u5f00<strong>Configure GATT server<\/strong><br \/>\n<img decoding=\"async\" data-src=\"https:\/\/blog.iyatt.com\/wp-content\/uploads\/2026\/08\/image-1786287200242.png\" alt=\"file\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" class=\"lazyload\" style=\"--smush-placeholder-width: 564px; --smush-placeholder-aspect-ratio: 564\/907;\" \/><\/p>\n<p>\u4e0b\u62c9\u5c55\u5f00\uff0c\u70b9\u51fb\u52a0\u53f7\u65b0\u5efa GATT \u914d\u7f6e<br \/>\n<img decoding=\"async\" data-src=\"https:\/\/blog.iyatt.com\/wp-content\/uploads\/2026\/08\/image-1786287233841.png\" alt=\"file\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" class=\"lazyload\" style=\"--smush-placeholder-width: 573px; --smush-placeholder-aspect-ratio: 573\/300;\" \/><\/p>\n<p>\u70b9\u51fb <strong>ADD SERVICE<\/strong> \u6dfb\u52a0\u670d\u52a1\uff0c<br \/>\n\u540d\u5b57\u8fd9\u91cc\u8bbe\u7f6e\u7684<strong>my service<\/strong>\uff0c\u53ef\u4ee5\u81ea\u5b9a\u4e49<br \/>\nUUID\u5fc5\u987b\u586b\uff08\u548c\u4ee3\u7801\u91cc\u5199\u6b7b\u7684\u8fde\u63a5\u76ee\u6807\u4e00\u81f4\uff09\uff1a4fafc201-1fb5-459e-8fcc-c5c9c331914b<br \/>\n<img decoding=\"async\" data-src=\"https:\/\/blog.iyatt.com\/wp-content\/uploads\/2026\/08\/image-1786287280282.png\" alt=\"file\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" class=\"lazyload\" style=\"--smush-placeholder-width: 581px; --smush-placeholder-aspect-ratio: 581\/662;\" \/><\/p>\n<p>\u7136\u540e\u70b9\u51fb <strong>ADD CHARACTERISTIC<\/strong> \u6dfb\u52a0\u7279\u5f81<br \/>\n\u540d\u5b57\u8fd9\u91cc\u8bbe\u7f6e\u7684<strong>my chara<\/strong>\uff0c\u53ef\u4ee5\u81ea\u5b9a\u4e49<br \/>\nUUID\u5fc5\u987b\u586b\uff08\u548c\u4ee3\u7801\u91cc\u5199\u6b7b\u7684\u7279\u5f81\u76ee\u6807\u4e00\u81f4\uff09\uff1abeb5483e-36e1-4688-b7f5-ea07361b26a8<br \/>\n\u5c5e\u6027\u8981\u52fe\u8bfbRead\u3001\u5199Write\u3001\u901a\u77e5Notufy\uff0c\u6743\u9650\u8981\u52feRead\u3001Write<br \/>\n\u4e0b\u9762\u7684\u521d\u59cb\u503c\u53ef\u4ee5\u9009<strong>Empty value<\/strong>\uff08\u7a7a\u503c\uff09\uff0c\u4e5f\u53ef\u4ee5\u586b\u6587\u672c\u6216\u5199\u5341\u516d\u8fdb\u5236<br \/>\n<img decoding=\"async\" data-src=\"https:\/\/blog.iyatt.com\/wp-content\/uploads\/2026\/08\/image-1786287465785.png\" alt=\"file\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" class=\"lazyload\" style=\"--smush-placeholder-width: 325px; --smush-placeholder-aspect-ratio: 325\/849;\" \/><\/p>\n<p>\u8fd4\u56de\u4e3b\u9875\uff0c\u5207\u6362\u5230 ADVERTISER \u9009\u9879\u5361\uff0c\u70b9\u51fb\u52a0\u53f7\u521b\u5efa\u5e7f\u64ad<br \/>\n\u663e\u793a\u540d\u5b57\u6211\u8bbe\u7f6e\u4e3a\uff1a<strong>server test<\/strong>\uff0c\u53ef\u4ee5\u81ea\u5b9a\u4e49<br \/>\n\u70b9\u51fb<strong>ADD RECORD<\/strong>\uff0c\u9009<strong>Service UUDI<\/strong>\uff0c\u7136\u540e\u586b\u4e0a\u9762\u914d\u7f6e GATT \u670d\u52a1\u7684 UUID\uff1a4fafc201-1fb5-459e-8fcc-c5c9c331914b<br \/>\n\u52fe\u9009\u53ef\u8fde\u63a5Connectable\u548c\u53ef\u88ab\u53d1\u73b0Discoverable<br \/>\n<img decoding=\"async\" data-src=\"https:\/\/blog.iyatt.com\/wp-content\/uploads\/2026\/08\/image-1786287732200.png\" alt=\"file\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" class=\"lazyload\" style=\"--smush-placeholder-width: 410px; --smush-placeholder-aspect-ratio: 410\/871;\" \/><\/p>\n<p>\u521b\u5efa\u597d\u5e7f\u64ad\u70b9\u51fb\u5f00\u5173\u6253\u5f00\uff0c\u5f39\u51fa\u7684\u9875\u9762\u76f4\u63a5\u70b9 OK\uff0c\u73b0\u5728\u5c31\u5f00\u542f\u5e7f\u64ad\u4e86<br \/>\n<img decoding=\"async\" data-src=\"https:\/\/blog.iyatt.com\/wp-content\/uploads\/2026\/08\/image-1786288015949.png\" alt=\"file\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" class=\"lazyload\" style=\"--smush-placeholder-width: 563px; --smush-placeholder-aspect-ratio: 563\/526;\" \/><\/p>\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\/Client.ino\">https:\/\/github.com\/espressif\/arduino-esp32\/blob\/3.3.11\/libraries\/BLE\/examples\/Client\/Client.ino<\/a><\/p>\n<pre><code class=\"language-cpp\">\/**\n * \u4e00\u4e2a\u529f\u80fd\u4e30\u5bcc\u7684 ESP32 BLE \u5ba2\u6237\u7aef\u793a\u4f8b\n * \u7528\u4e8e\u626b\u63cf\u3001\u8fde\u63a5\u6307\u5b9a\u7684 BLE \u670d\u52a1\u7aef\uff0c\u5e76\u8fdb\u884c\u6570\u636e\u8bfb\u5199\u548c\u901a\u77e5\u8ba2\u9605\n * \u4f5c\u8005\uff1a\u672a\u77e5\n * \u66f4\u65b0\uff1achegewara\n *\/\n\n#include &lt;Arduino.h&gt;\n#include &quot;BLEDevice.h&quot; \/\/ ESP32 BLE \u6838\u5fc3\u5e93\n\/\/ #include &quot;BLEScan.h&quot;\n\n\/\/ \u76ee\u6807 BLE \u670d\u52a1\uff08Service\uff09\u7684 UUID\uff0c\u9700\u4e0e\u670d\u52a1\u7aef\u4fdd\u6301\u4e00\u81f4\nstatic BLEUUID serviceUUID(&quot;4fafc201-1fb5-459e-8fcc-c5c9c331914b&quot;);\n\/\/ \u76ee\u6807 BLE \u7279\u5f81\uff08Characteristic\uff09\u7684 UUID\nstatic BLEUUID charUUID(&quot;beb5483e-36e1-4688-b7f5-ea07361b26a8&quot;);\n\n\/\/ \u63a7\u5236\u903b\u8f91\u4e0e\u72b6\u6001\u6807\u5fd7\u4f4d\nstatic boolean doConnect = false; \/\/ \u6807\u5fd7\uff1a\u662f\u5426\u89e6\u53d1\u8fde\u63a5\u64cd\u4f5c\nstatic boolean connected = false; \/\/ \u6807\u5fd7\uff1a\u5f53\u524d\u662f\u5426\u5df2\u6210\u529f\u8fde\u63a5\u670d\u52a1\u7aef\nstatic boolean doScan = false;    \/\/ \u6807\u5fd7\uff1a\u65ad\u5f00\u8fde\u63a5\u540e\u662f\u5426\u91cd\u65b0\u5f00\u542f\u626b\u63cf\n\n\/\/ \u8fdc\u7a0b\u7279\u5f81\u6307\u9488\u4e0e\u626b\u63cf\u5230\u7684\u8bbe\u5907\u5bf9\u8c61\u6307\u9488\nstatic BLERemoteCharacteristic *pRemoteCharacteristic;\nstatic BLEAdvertisedDevice *myDevice;\n\n\/**\n * \u63a5\u6536\u670d\u52a1\u7aef Notify\uff08\u901a\u77e5\uff09\u6570\u636e\u7684\u56de\u8c03\u51fd\u6570\n * \u5f53\u670d\u52a1\u7aef\u4fee\u6539\u7279\u5f81\u503c\u5e76\u4e3b\u52a8\u63a8\u9001\u5230\u5ba2\u6237\u7aef\u65f6\uff0c\u8be5\u51fd\u6570\u4f1a\u88ab\u81ea\u52a8\u89e6\u53d1\n *\/\nstatic void notifyCallback(BLERemoteCharacteristic *pBLERemoteCharacteristic, uint8_t *pData, size_t length, bool isNotify)\n{\n    Serial.print(&quot;\u6536\u5230\u7279\u5f81\u901a\u77e5 (UUID: &quot;);\n    Serial.print(pBLERemoteCharacteristic-&gt;getUUID().toString().c_str());\n    Serial.print(&quot;)\uff0c\u6570\u636e\u957f\u5ea6: &quot;);\n    Serial.println(length);\n    Serial.print(&quot;\u63a5\u6536\u5230\u7684\u6570\u636e\u5185\u5bb9: &quot;);\n    Serial.write(pData, length); \/\/ \u6309\u7167\u5b57\u8282\u6d41\u6253\u5370\u63a5\u6536\u5230\u7684\u6570\u636e\n    Serial.println();\n}\n\n\/**\n * \u5ba2\u6237\u7aef\u8fde\u63a5\u72b6\u6001\u6539\u53d8\u65f6\u7684\u56de\u8c03\u7c7b\n *\/\nclass MyClientCallback : public BLEClientCallbacks\n{\n    \/\/ \u5f53\u4e0e\u670d\u52a1\u7aef\u5efa\u7acb\u8fde\u63a5\u6210\u529f\u65f6\u89e6\u53d1\n    void onConnect(BLEClient *pclient) {}\n\n    \/\/ \u5f53\u4e0e\u670d\u52a1\u7aef\u65ad\u5f00\u8fde\u63a5\u65f6\u89e6\u53d1\n    void onDisconnect(BLEClient *pclient)\n    {\n        connected = false;\n        Serial.println(&quot;\u4e0e BLE \u670d\u52a1\u7aef\u65ad\u5f00\u8fde\u63a5 (onDisconnect)&quot;);\n    }\n};\n\n\/**\n * \u8fde\u63a5\u81f3\u8fdc\u7a0b BLE \u670d\u52a1\u7aef\u7684\u4e3b\u903b\u8f91\u51fd\u6570\n *\/\nbool connectToServer()\n{\n    Serial.print(&quot;\u6b63\u5728\u5c1d\u8bd5\u8fde\u63a5\u8bbe\u5907\uff0cMAC \u5730\u5740: &quot;);\n    Serial.println(myDevice-&gt;getAddress().toString().c_str());\n\n    \/\/ 1. \u521b\u5efa BLE \u5ba2\u6237\u7aef\u5b9e\u4f8b\n    BLEClient *pClient = BLEDevice::createClient();\n    Serial.println(&quot; - \u5ba2\u6237\u7aef\u521b\u5efa\u6210\u529f&quot;);\n\n    \/\/ \u8bbe\u7f6e\u5ba2\u6237\u7aef\u72b6\u6001\u56de\u8c03\uff08\u76d1\u542c\u8fde\u63a5\/\u65ad\u5f00\u4e8b\u4ef6\uff09\n    pClient-&gt;setClientCallbacks(new MyClientCallback());\n\n    \/\/ 2. \u53d1\u8d77\u8fde\u63a5\n    \/\/ \u76f4\u63a5\u4f20\u5165 BLEAdvertisedDevice \u5bf9\u8c61\u80fd\u81ea\u52a8\u8bc6\u522b\u76ee\u6807\u8bbe\u5907\u5730\u5740\u7c7b\u578b\uff08Public \u6216 Private\uff09\n    pClient-&gt;connect(myDevice);\n    Serial.println(&quot; - \u6210\u529f\u8fde\u63a5\u81f3\u670d\u52a1\u7aef&quot;);\n\n    \/\/ 3. \u8bf7\u6c42\u534f\u5546\u6700\u5927\u4f20\u8f93\u5355\u5143 (MTU)\uff0c\u9ed8\u8ba4\u662f 23 \u5b57\u8282\uff0c\u6b64\u5904\u8bf7\u6c42\u8bbe\u4e3a 517 \u5b57\u8282\n    pClient-&gt;setMTU(517);\n\n    \/\/ 4. \u83b7\u53d6\u8fdc\u7a0b\u670d\u52a1\u7aef\u5bf9\u5e94\u7684 Service\uff08\u670d\u52a1\uff09\n    BLERemoteService *pRemoteService = pClient-&gt;getService(serviceUUID);\n    if (pRemoteService == nullptr)\n    {\n        Serial.print(&quot;\u672a\u80fd\u5728\u76ee\u6807\u8bbe\u5907\u4e0a\u627e\u5230\u5339\u914d\u7684\u670d\u52a1 UUID: &quot;);\n        Serial.println(serviceUUID.toString().c_str());\n        pClient-&gt;disconnect();\n        return false;\n    }\n    Serial.println(&quot; - \u627e\u5230\u76ee\u6807\u670d\u52a1&quot;);\n\n    \/\/ 5. \u4ece\u670d\u52a1\u4e2d\u83b7\u53d6\u5bf9\u5e94\u7684 Characteristic\uff08\u7279\u5f81\uff09\n    pRemoteCharacteristic = pRemoteService-&gt;getCharacteristic(charUUID);\n    if (pRemoteCharacteristic == nullptr)\n    {\n        Serial.print(&quot;\u672a\u80fd\u5728\u76ee\u6807\u670d\u52a1\u4e2d\u627e\u5230\u5339\u914d\u7684\u7279\u5f81 UUID: &quot;);\n        Serial.println(charUUID.toString().c_str());\n        pClient-&gt;disconnect();\n        return false;\n    }\n    Serial.println(&quot; - \u627e\u5230\u76ee\u6807\u7279\u5f81&quot;);\n\n    \/\/ 6. \u68c0\u67e5\u7279\u5f81\u5c5e\u6027\u5e76\u8fdb\u884c\u3010\u8bfb\u53d6\u3011\u64cd\u4f5c\n    if (pRemoteCharacteristic-&gt;canRead())\n    {\n        String value = pRemoteCharacteristic-&gt;readValue();\n        Serial.print(&quot;\u6210\u529f\u8bfb\u53d6\u7279\u5f81\u5f53\u524d\u503c: &quot;);\n        Serial.println(value.c_str());\n    }\n\n    \/\/ 7. \u68c0\u67e5\u7279\u5f81\u5c5e\u6027\u5e76\u3010\u8ba2\u9605\u901a\u77e5\u3011\n    if (pRemoteCharacteristic-&gt;canNotify())\n    {\n        \/\/ \u6ce8\u518c\u56de\u8c03\u51fd\u6570\u4ee5\u63a5\u6536\u5b9e\u65f6\u6570\u636e\u63a8\u9001\n        pRemoteCharacteristic-&gt;registerForNotify(notifyCallback);\n    }\n\n    connected = true; \/\/ \u6807\u8bb0\u5df2\u6210\u529f\u8fde\u63a5\u5e76\u51c6\u5907\u5c31\u7eea\n    return true;\n}\n\n\/**\n * \u626b\u63cf\u56de\u8c03\u7c7b\uff1a\u5728\u540e\u53f0\u626b\u63cf\u5468\u8fb9\u5e7f\u64ad\u8bbe\u5907\uff0c\u5bfb\u627e\u7b26\u5408\u76ee\u6807\u670d\u52a1 UUID \u7684\u8bbe\u5907\n *\/\nclass MyAdvertisedDeviceCallbacks : public BLEAdvertisedDeviceCallbacks\n{\n    \/**\n     * \u6bcf\u6b21\u626b\u63cf\u5230\u5468\u56f4\u6709 BLE \u8bbe\u5907\u5e7f\u64ad\u65f6\uff0c\u7cfb\u7edf\u90fd\u4f1a\u8c03\u7528\u6b64\u51fd\u6570\n     *\/\n    void onResult(BLEAdvertisedDevice advertisedDevice)\n    {\n        Serial.print(&quot;\u53d1\u73b0 BLE \u5e7f\u64ad\u8bbe\u5907: &quot;);\n        Serial.println(advertisedDevice.toString().c_str());\n\n        \/\/ \u68c0\u67e5\u8bbe\u5907\u5e7f\u64ad\u7684\u6570\u636e\u4e2d\u662f\u5426\u5305\u542b\u6211\u4eec\u6b63\u5728\u5bfb\u627e\u7684\u76ee\u6807\u670d\u52a1 UUID\n        if (advertisedDevice.haveServiceUUID() &amp;&amp; advertisedDevice.isAdvertisingService(serviceUUID))\n        {\n\n            \/\/ \u627e\u5230\u76ee\u6807\u8bbe\u5907\u540e\uff0c\u7acb\u5373\u505c\u6b62\u540e\u53f0\u626b\u63cf\u4ee5\u8282\u7701\u8d44\u6e90\n            BLEDevice::getScan()-&gt;stop();\n\n            \/\/ \u4fdd\u5b58\u76ee\u6807\u8bbe\u5907\u5bf9\u8c61\u7684\u526f\u672c\n            myDevice = new BLEAdvertisedDevice(advertisedDevice);\n\n            doConnect = true; \/\/ \u89e6\u53d1 loop \u4e2d\u7684\u8fde\u63a5\u903b\u8f91\n            doScan = true;    \/\/ \u6807\u8bb0\u65ad\u5f00\u540e\u9700\u8981\u91cd\u65b0\u626b\u63cf\n\n        } \/\/ \u627e\u5230\u76ee\u6807\u670d\u52a1\u7aef\n    } \/\/ onResult\n}; \/\/ MyAdvertisedDeviceCallbacks\n\nvoid setup()\n{\n    Serial.begin(115200);\n    Serial.println(&quot;\u542f\u52a8 Arduino BLE \u5ba2\u6237\u7aef\u7a0b\u5e8f...&quot;);\n\n    \/\/ \u521d\u59cb\u5316 ESP32 \u7684 BLE \u8bbe\u5907\uff0c\u53c2\u6570\u53ef\u7559\u7a7a\n    BLEDevice::init(&quot;&quot;);\n\n    \/\/ \u83b7\u53d6\u626b\u63cf\u5668\u5355\u4f8b\uff0c\u5e76\u914d\u7f6e\u53c2\u6570\n    BLEScan *pBLEScan = BLEDevice::getScan();\n    pBLEScan-&gt;setAdvertisedDeviceCallbacks(new MyAdvertisedDeviceCallbacks()); \/\/ \u8bbe\u7f6e\u5e7f\u64ad\u56de\u8c03\n    pBLEScan-&gt;setInterval(1349);                                               \/\/ \u626b\u63cf\u95f4\u9694 (ms)\n    pBLEScan-&gt;setWindow(449);                                                  \/\/ \u626b\u63cf\u7a97\u53e3\u5927\u5c0f (ms)\uff0c\u9700\u5c0f\u4e8e\u6216\u7b49\u4e8e\u95f4\u9694\n    pBLEScan-&gt;setActiveScan(true);                                             \/\/ \u5f00\u542f\u4e3b\u52a8\u626b\u63cf\uff08\u53ef\u7d22\u8981\u66f4\u591a\u5e7f\u64ad\u6570\u636e\uff09\n\n    \/\/ \u542f\u52a8\u7b2c\u4e00\u6b21\u626b\u63cf\uff0c\u6301\u7eed 5 \u79d2\uff0c\u7b2c 2 \u4e2a\u53c2\u6570\u4e3a false \u8868\u793a\u91cd\u65b0\u626b\u63cf\n    pBLEScan-&gt;start(5, false);\n}\n\nvoid loop()\n{\n    \/\/ 1. \u5982\u679c\u626b\u63cf\u56de\u8c03\u627e\u5230\u4e86\u76ee\u6807\u8bbe\u5907\uff0c\u6267\u884c\u8fde\u63a5\u903b\u8f91\n    if (doConnect == true)\n    {\n        if (connectToServer())\n        {\n            Serial.println(&quot;\u6211\u4eec\u73b0\u5728\u5df2\u6210\u529f\u8fde\u63a5\u5230 BLE \u670d\u52a1\u7aef\u3002&quot;);\n        }\n        else\n        {\n            Serial.println(&quot;\u8fde\u63a5\u670d\u52a1\u7aef\u5931\u8d25\uff0c\u672a\u91c7\u53d6\u8fdb\u4e00\u6b65\u64cd\u4f5c\u3002&quot;);\n        }\n        doConnect = false; \/\/ \u6d88\u8d39\u8fde\u63a5\u8bf7\u6c42\u6807\u5fd7\n    }\n\n    \/\/ 2. \u8fde\u63a5\u5efa\u7acb\u540e\u7684\u6301\u7eed\u4ea4\u4e92\u903b\u8f91\uff1a\u5199\u5165\u6570\u636e \u2794 \u91cd\u65b0\u8bfb\u53d6\u9a8c\u8bc1\n    if (connected)\n    {\n        \/\/ \u6784\u9020\u5199\u5165\u6570\u636e\uff08\u5f00\u673a\u65f6\u957f\u79d2\u6570\uff09\n        String newValue = &quot;Time since boot: &quot; + String(millis() \/ 1000);\n        Serial.println(&quot;==========================================&quot;);\n        Serial.println(&quot;\u3010\u53d1\u9001\u6570\u636e\u3011: \\&quot;&quot; + newValue + &quot;\\&quot;&quot;);\n\n        \/\/ \u5199\u5165\u6570\u636e\n        pRemoteCharacteristic-&gt;writeValue(newValue.c_str(), newValue.length());\n\n        \/\/ \u5ef6\u8fdf 100ms \u7559\u7ed9\u670d\u52a1\u7aef\u5904\u7406\u548c\u66f4\u65b0\u7f13\u5b58\n        delay(100);\n\n        \/\/ \u91cd\u65b0\u8bfb\u53d6\u7279\u5f81\u503c\u5e76\u6253\u5370\n        if (pRemoteCharacteristic-&gt;canRead())\n        {\n            String actualValue = pRemoteCharacteristic-&gt;readValue();\n            Serial.print(&quot;\u3010\u56de\u8bfb\u9a8c\u8bc1\u3011: &quot;);\n            Serial.println(actualValue.c_str());\n        }\n        else\n        {\n            Serial.println(&quot;\u3010\u8b66\u544a\u3011\u8be5\u7279\u5f81\u4e0d\u652f\u6301\u8bfb\u53d6 (canRead == false)&quot;);\n        }\n        Serial.println(&quot;==========================================&quot;);\n    }\n    \/\/ 3. \u5982\u679c\u8fde\u63a5\u65ad\u5f00\u4e14\u9700\u8981\u6062\u590d\u626b\u63cf\uff0c\u91cd\u65b0\u542f\u52a8\u626b\u63cf\n    else if (doScan)\n    {\n        BLEDevice::getScan()-&gt;start(0);\n    }\n\n    delay(2000); \/\/ \u8c03\u6574\u4e3a\u6bcf 2 \u79d2\u5faa\u73af\u4e00\u6b21\n}<\/code><\/pre>\n<p>ESP32 \u8fde\u63a5\u5230\u624b\u673a\u84dd\u7259\uff0c\u8bfb\u53d6\u5230\u521d\u59cb\u503c\uff0c\u5e76\u5468\u671f\u6027\u4fee\u6539\u7279\u5f81\u503c\u5e76\u8bfb\u53d6\u4fee\u6539\u540e\u7ed3\u679c<br \/>\n<img decoding=\"async\" data-src=\"https:\/\/blog.iyatt.com\/wp-content\/uploads\/2026\/08\/image-1786288123932.png\" alt=\"file\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" class=\"lazyload\" style=\"--smush-placeholder-width: 1068px; --smush-placeholder-aspect-ratio: 1068\/498;\" \/><\/p>\n<p>\u624b\u673a\u7aef\u67e5\u770b<br \/>\n\u53ef\u4ee5\u770b\u5230\u5f53\u524d\u7279\u5f81\u503c\u4e3a\uff1aTime since boot: 113<br \/>\n<img decoding=\"async\" data-src=\"https:\/\/blog.iyatt.com\/wp-content\/uploads\/2026\/08\/image-1786288263672.png\" alt=\"file\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" class=\"lazyload\" style=\"--smush-placeholder-width: 569px; --smush-placeholder-aspect-ratio: 569\/886;\" \/><\/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-25142","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\/25142","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=25142"}],"version-history":[{"count":1,"href":"https:\/\/blog.iyatt.com\/index.php?rest_route=\/wp\/v2\/posts\/25142\/revisions"}],"predecessor-version":[{"id":25154,"href":"https:\/\/blog.iyatt.com\/index.php?rest_route=\/wp\/v2\/posts\/25142\/revisions\/25154"}],"wp:attachment":[{"href":"https:\/\/blog.iyatt.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=25142"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.iyatt.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=25142"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.iyatt.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=25142"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}