{"id":873,"date":"2025-06-26T10:18:34","date_gmt":"2025-06-26T02:18:34","guid":{"rendered":"https:\/\/aimc.skyate.com\/?p=873"},"modified":"2025-06-26T10:18:34","modified_gmt":"2025-06-26T02:18:34","slug":"%e3%80%90aimc%e6%95%99%e7%a8%8b%e3%80%91%e3%80%90%e7%94%b5%e5%ad%90%e8%ae%be%e8%ae%a1%e5%b7%a5%e5%9d%8a%e3%80%91part5-esp32-wifi%e9%80%9a%e4%bf%a1","status":"publish","type":"post","link":"https:\/\/aimc.skyate.com\/index.php\/2025\/06\/26\/%e3%80%90aimc%e6%95%99%e7%a8%8b%e3%80%91%e3%80%90%e7%94%b5%e5%ad%90%e8%ae%be%e8%ae%a1%e5%b7%a5%e5%9d%8a%e3%80%91part5-esp32-wifi%e9%80%9a%e4%bf%a1\/","title":{"rendered":"\u3010AIMC\u6559\u7a0b\u3011\u3010\u7535\u5b50\u8bbe\u8ba1\u5de5\u574a\u3011Part5 ESP32 WIFI\u901a\u4fe1"},"content":{"rendered":"\n

ESP32 WIFI\u901a\u4fe1<\/h2>\n\n\n\n

\u2460 ESP32 Wifi\u57fa\u7840\u64cd\u4f5c<\/p>\n\n\n\n

\u2461 ESP32 \u81ea\u52a8\u91cd\u8fde\u63a5<\/p>\n\n\n\n

\u2462 NTP\u7f51\u7edc\u6821\u65f6<\/p>\n\n\n\n

\u2463 UDP\/TCP\u901a\u4fe1<\/p>\n\n\n\n

1 ESP32 Wifi\u57fa\u7840\u64cd\u4f5c<\/h2>\n\n\n\n

1.1 ESP32 WIFI\u7b80\u4ecb<\/h3>\n\n\n\n

WiFi \u662f\u4e00\u79cd\u65e0\u7ebf\u7f51\u7edc\u6280\u672f\uff0c\u5141\u8bb8\u8bbe\u5907\u5728\u4e00\u5b9a\u8303\u56f4\u5185\u901a\u8fc7\u65e0\u7ebf\u4fe1\u53f7\u8fdb\u884c\u901a\u4fe1\u548c\u6570\u636e\u4f20\u8f93\uff0c\u65e0\u9700\u4f9d\u8d56\u6709\u7ebf\u8fde\u63a5\u3002\u5b83\u57fa\u4e8e IEEE 802.11 \u6807\u51c6\uff0c\u4f7f\u667a\u80fd\u8bbe\u5907\u80fd\u591f\u65b9\u4fbf\u5730\u63a5\u5165\u4e92\u8054\u7f51\u6216\u76f8\u4e92\u4e4b\u95f4\u8fdb\u884c\u6570\u636e\u4ea4\u6362\u3002<\/p>\n\n\n\n

WiFi\u7f51\u7edc\u7684\u57fa\u672c\u6784\u6210\u5305\u62ec\u65e0\u7ebf\u63a5\u5165\u70b9AP\uff08<\/strong>Access Point<\/strong>\uff09<\/strong>\u548c\u7ad9\u70b9<\/strong>STA<\/strong>\uff08Station\uff09<\/strong>\u3002\u5728WiFi\u7f51\u7edc\u4e2d\uff0cAP\u662f\u65e0\u7ebf\u7f51\u7edc\u7684\u521b\u5efa\u8005\u548c\u534f\u8c03\u8005\uff0c\u8d1f\u8d23\u7ba1\u7406\u548c\u534f\u8c03\u6574\u4e2a\u7f51\u7edc\u4e2d\u7684\u6570\u636e\u4f20\u8f93\uff0c\u800cSTA\u4ee3\u8868\u8fde\u63a5\u5230\u7f51\u7edc\u7684\u7ec8\u7aef\u8bbe\u5907\uff0c\u6bcf\u4e00\u4e2a\u7ec8\u7aef\u8bbe\u5907\u5982PC\u6216\u624b\u673a\u90fd\u53ef\u4ee5\u88ab\u89c6\u4e3aSTA\u3002<\/p>\n\n\n

\n
\"\"<\/figure>\n<\/div>\n\n\n

ESP32-S3 \u96c6\u6210 2.4 GHz Wi-Fi (802.11 b\/g\/n)\uff0c\u652f\u6301 40 MHz \u5e26\u5bbd\uff1b\u5176\u4f4e\u529f\u8017\u84dd\u7259\u5b50\u7cfb\u7edf\u652f\u6301 Bluetooth 5 (LE) \u548c Bluetooth Mesh\uff0c\u53ef\u901a\u8fc7 Coded PHY \u4e0e\u5e7f\u64ad\u6269\u5c55\u5b9e\u73b0\u8fdc\u8ddd\u79bb\u901a\u4fe1\u3002\u5b83\u8fd8\u652f\u6301 2 Mbps PHY\uff0c\u7528\u4e8e\u63d0\u9ad8\u4f20\u8f93\u901f\u5ea6\u548c\u6570\u636e\u541e\u5410\u91cf\u3002ESP32-S3 \u7684 Wi-Fi \u548c Bluetooth LE \u5c04\u9891\u6027\u80fd\u4f18\u8d8a\uff0c\u5728\u9ad8\u6e29\u4e0b\u4e5f\u80fd\u7a33\u5b9a\u5de5\u4f5c\u3002\u652f\u6301\u591a\u79cd WiFi \u6a21\u5f0f\uff1a<\/p>\n\n\n\n

    \n
  • Station \u6a21\u5f0f\uff08<\/strong>STA<\/strong>\uff09 \uff1a<\/strong>ESP32 \u53ef\u4ee5\u50cf\u666e\u901a WiFi \u8bbe\u5907\u4e00\u6837\u8fde\u63a5\u5230 WiFi \u8def\u7531\u5668\u6216\u70ed\u70b9\uff0c\u4f5c\u4e3a\u5ba2\u6237\u7aef\u83b7\u53d6\u7f51\u7edc\u8bbf\u95ee\u6743\u9650\uff0c\u5b9e\u73b0\u4e0e\u4e92\u8054\u7f51\u6216\u5176\u4ed6\u7f51\u7edc\u8bbe\u5907\u7684\u901a\u4fe1\u3002\u8fd9\u79cd\u6a21\u5f0f\u9002\u7528\u4e8e\u9700\u8981\u63a5\u5165\u73b0\u6709 WiFi \u7f51\u7edc\u7684\u573a\u666f\uff0c\u4f8b\u5982\u5c06 ESP32 \u8fde\u63a5\u5230\u5bb6\u4e2d\u7684 WiFi \u8def\u7531\u5668\uff0c\u4ee5\u4fbf\u8bbf\u95ee\u4e91\u670d\u52a1\u6216\u4e0e\u5176\u4ed6\u8054\u7f51\u8bbe\u5907\u4ea4\u4e92\u3002<\/li>\n\n\n\n
  • Access Point<\/strong> \u6a21\u5f0f\uff08AP\uff09 \uff1a<\/strong>ESP32 \u53ef\u4ee5\u4f5c\u4e3a WiFi \u70ed\u70b9\uff0c\u521b\u5efa\u4e00\u4e2a WiFi \u7f51\u7edc\uff0c\u5141\u8bb8\u5176\u4ed6\u8bbe\u5907\u8fde\u63a5\u5230\u5b83\u3002\u8fd9\u5728\u6ca1\u6709\u73b0\u6709 WiFi \u7f51\u7edc\u6216\u9700\u8981\u4e3a\u5176\u4ed6\u8bbe\u5907\u63d0\u4f9b\u7f51\u7edc\u63a5\u5165\u670d\u52a1\u65f6\u975e\u5e38\u6709\u7528\uff0c\u4f8b\u5982\u5728\u7269\u8054\u7f51\u9879\u76ee\u4e2d\uff0c\u591a\u4e2a\u4f20\u611f\u5668\u6216\u8bbe\u5907\u53ef\u4ee5\u901a\u8fc7\u8fde\u63a5\u5230 ESP32 \u521b\u5efa\u7684 AP \u8fdb\u884c\u6570\u636e\u4f20\u8f93\u3002<\/li>\n\n\n\n
  • STA<\/strong>+<\/strong>AP<\/strong> \u6a21\u5f0f \uff1a<\/strong>ESP32 \u540c\u65f6\u652f\u6301 Station \u548c Access Point \u6a21\u5f0f\u3002\u8fd9\u610f\u5473\u7740\u5b83\u53ef\u4ee5\u4e00\u8fb9\u8fde\u63a5\u5230\u4e00\u4e2a WiFi \u8def\u7531\u5668\u83b7\u53d6\u7f51\u7edc\u8bbf\u95ee\u6743\u9650\uff0c\u4e00\u8fb9\u4f5c\u4e3a\u70ed\u70b9\u4e3a\u5176\u4ed6\u8bbe\u5907\u63d0\u4f9b WiFi \u8fde\u63a5\u670d\u52a1\u3002\u8fd9\u79cd\u6a21\u5f0f\u5728\u9700\u8981\u540c\u65f6\u63a5\u5165\u5916\u90e8\u7f51\u7edc\u5e76\u4e0e\u5176\u4ed6\u8bbe\u5907\u8fdb\u884c\u672c\u5730\u901a\u4fe1\u7684\u573a\u666f\u4e2d\u5177\u6709\u5f88\u5927\u4f18\u52bf\uff0c\u4f8b\u5982\u5728\u667a\u80fd\u7f51\u5173\u8bbe\u5907\u4e2d\uff0cESP32 \u53ef\u4ee5\u901a\u8fc7 STA \u6a21\u5f0f\u8fde\u63a5\u5230\u4e92\u8054\u7f51\uff0c\u540c\u65f6\u901a\u8fc7 AP \u6a21\u5f0f\u4e0e\u9644\u8fd1\u7684\u4f20\u611f\u5668\u6216\u63a7\u5236\u5668\u8fdb\u884c\u901a\u4fe1\u3002<\/li>\n<\/ul>\n\n\n\n

    1.2 ESP32 STA\u6a21\u5f0f\u5b9e\u6218<\/h3>\n\n\n\n

    \u4ee5\u4e0b\u662f\u4e00\u4e2aArduino ESP32 WiFi STA\u6a21\u5f0f\u7684\u4f8b\u7a0b\uff0c\u80fd\u591f\u8fde\u63a5WiFi\uff0c\u6709\u8d85\u65f6\u505c\u6b62\u5c1d\u8bd5\u8fde\u63a5\u5e76\u901a\u8fc7\u4e32\u53e3\u6253\u5370\u63d0\u793a\u3001\u8fde\u63a5\u6210\u529f\u540e\u6253\u5370\u8def\u7531\u5668\u4fe1\u606f\u548c\u672c\u673a\u7f51\u7edc\u4fe1\u606f\u3002<\/p>\n\n\n\n

    #include <Arduino.h>\n#include <WiFi.h>\n\nconst char* ssid = \"your_SSID\";   \/\/ WiFi\u7f51\u7edc\u540d\u79f0\nconst char* password = \"your_PASSWORD\"; \/\/ WiFi\u5bc6\u7801\nconst int connectTimeout = 20;    \/\/ \u8fde\u63a5\u8d85\u65f6\u65f6\u95f4\uff08\u79d2\uff09\n\nvoid setup() {\n  Serial.begin(115200);\n  Serial.println();\n  Serial.print(\"Connecting to \");\n  Serial.println(ssid);\n\n  WiFi.begin(ssid, password);\n  unsigned long start_time = millis();\n\n  while (WiFi.status() != WL_CONNECTED) {\n    delay(500);\n    Serial.print(\".\");\n    if ((millis() - start_time) \/ 1000 > connectTimeout) {\n      Serial.println();\n      Serial.println(\"Connection timed out.\");\n      break;\n    }\n  }\n\n  if (WiFi.status() == WL_CONNECTED) {\n    Serial.println(\"\");\n    Serial.println(\"WiFi connected\");\n    Serial.println(\"Network Info:\");\n    Serial.print(\"SSID: \");\n    Serial.println(WiFi.SSID());\n    Serial.print(\"BSSID: \");\n    Serial.print(WiFi.BSSID()[0], HEX);\n    for (int i = 1; i < 6; i++) {\n      Serial.print(\":\");\n      Serial.print(WiFi.BSSID()[i], HEX);\n    }\n    Serial.println();\n    Serial.print(\"RSSI: \");\n    Serial.print(WiFi.RSSI());\n    Serial.println(\" dBm\");\n    Serial.println(\"Local Network Info:\");\n    Serial.print(\"IP Address: \");\n    Serial.println(WiFi.localIP());\n    Serial.print(\"Subnet Mask: \");\n    Serial.println(WiFi.subnetMask());\n    Serial.print(\"Gateway IP: \");\n    Serial.println(WiFi.gatewayIP());\n    Serial.print(\"DNS IP: \");\n    Serial.println(WiFi.dnsIP());\n  } else {\n    Serial.println(\"WiFi connection failed\");\n  }\n}\n\nvoid loop() {\n  \/\/ Your code here\n}<\/pre>\n\n\n
    \n
    \"\"<\/figure>\n<\/div>\n\n\n
    \u51fd\u6570<\/td>\u4f5c\u7528<\/td>\u53c2\u6570<\/td>\u8fd4\u56de\u503c<\/td>\u6ce8\u610f\u4e8b\u9879<\/td><\/tr>
    WiFi.begin()<\/td>\u5f00\u59cb\u8fde\u63a5\u5230 WiFi \u7f51\u7edc<\/td>ssid\uff1aWiFi \u7f51\u7edc\u540d\u79f0\uff08\u5b57\u7b26\u4e32\u7c7b\u578b\uff09\uff1bpassword\uff1aWiFi \u5bc6\u7801\uff08\u5b57\u7b26\u4e32\u7c7b\u578b\uff09<\/td>\u65e0<\/td>\u9700\u8981\u786e\u4fdd WiFi \u6a21\u5757\u5904\u4e8e STA \u6a21\u5f0f\u3002\u5728\u8c03\u7528\u8be5\u51fd\u6570\u540e\uff0c\u901a\u5e38\u9700\u8981\u7528\u5faa\u73af\u914d\u5408 WiFi.status() \u6765\u5224\u65ad\u662f\u5426\u8fde\u63a5\u6210\u529f<\/td><\/tr>
    WiFi.status()<\/td>\u83b7\u53d6 WiFi \u8fde\u63a5\u72b6\u6001<\/td>\u65e0<\/td>WL\\_CONNECTED\uff1a\u5df2\u8fde\u63a5\uff1bWL\\_IDLE\\_STATUS\uff1a\u7a7a\u95f2\uff1bWL\\_NO\\_SSID\\_AVAIL\uff1a\u6ca1\u6709\u53ef\u7528\u7684 SSID\uff1bWL\\_SCAN\\_COMPLETED\uff1a\u626b\u63cf\u5b8c\u6210\uff1bWL\\_CONNECT\\_FAILED\uff1a\u8fde\u63a5\u5931\u8d25\u7b49<\/td>\u53ef\u4ee5\u901a\u8fc7\u5faa\u73af\u68c0\u6d4b\u8be5\u72b6\u6001\u6765\u5224\u65ad WiFi \u8fde\u63a5\u662f\u5426\u6210\u529f\uff0c\u4ee5\u53ca\u5728\u8fde\u63a5\u4e22\u5931\u540e\u8fdb\u884c\u76f8\u5e94\u7684\u5904\u7406<\/td><\/tr>
    WiFi.localIP()<\/td>\u83b7\u53d6\u672c\u5730 IP \u5730\u5740<\/td>\u65e0<\/td>\u8fd4\u56de\u4e00\u4e2a IPAddress \u7c7b\u578b\u7684\u672c\u5730 IP \u5730\u5740<\/td>\u5728 WiFi \u8fde\u63a5\u6210\u529f\u540e\u8c03\u7528\u8be5\u51fd\u6570\u6765\u83b7\u53d6\u8bbe\u5907\u5728\u5c40\u57df\u7f51\u4e2d\u7684 IP \u5730\u5740\uff0c\u7528\u4e8e\u540e\u7eed\u7684\u7f51\u7edc\u901a\u4fe1<\/td><\/tr>
    WiFi.SSID()<\/td>\u83b7\u53d6\u5f53\u524d\u8fde\u63a5\u7684 WiFi \u7f51\u7edc\u540d\u79f0<\/td>\u65e0<\/td>\u8fd4\u56de\u5f53\u524d\u8fde\u63a5\u7684 WiFi \u7f51\u7edc\u540d\u79f0\uff08\u5b57\u7b26\u4e32\u7c7b\u578b\uff09<\/td>\u5728 WiFi \u8fde\u63a5\u6210\u529f\u540e\u8c03\u7528\u8be5\u51fd\u6570\u6765\u83b7\u53d6\u8bbe\u5907\u6240\u8fde\u63a5\u7684 WiFi \u7f51\u7edc\u540d\u79f0\uff0c\u7528\u4e8e\u663e\u793a\u7f51\u7edc\u4fe1\u606f\u7b49<\/td><\/tr>
    WiFi.BSSID()<\/td>\u83b7\u53d6\u5f53\u524d\u8fde\u63a5\u7684 WiFi \u7f51\u7edc\u7684 BSSID<\/td>\u65e0<\/td>\u8fd4\u56de\u4e00\u4e2a\u6570\u7ec4\uff0c\u5305\u542b 6 \u4e2a\u5b57\u8282\u7684 BSSID \u503c<\/td>BSSID \u662f\u65e0\u7ebf\u63a5\u5165\u70b9\uff08AP\uff09\u7684 MAC \u5730\u5740\uff0c\u6bcf\u4e2a AP \u90fd\u6709\u4e00\u4e2a\u552f\u4e00\u7684 BSSID\u3002\u5728 WiFi \u8fde\u63a5\u6210\u529f\u540e\u8c03\u7528\u8be5\u51fd\u6570\u6765\u83b7\u53d6\u8bbe\u5907\u6240\u8fde\u63a5\u7684 AP \u7684 BSSID\uff0c\u7528\u4e8e\u663e\u793a\u7f51\u7edc\u4fe1\u606f\u7b49<\/td><\/tr>
    WiFi.RSSI()<\/td>\u83b7\u53d6\u5f53\u524d\u8fde\u63a5\u7684 WiFi \u4fe1\u53f7\u5f3a\u5ea6<\/td>\u65e0<\/td>\u8fd4\u56de\u4e00\u4e2a\u6574\u6570\u503c\uff0c\u8868\u793a WiFi \u4fe1\u53f7\u5f3a\u5ea6\uff08\u5355\u4f4d\uff1adBm\uff09<\/td>RSSI \u503c\u8d8a\u5c0f\uff0c\u8868\u793a\u4fe1\u53f7\u5f3a\u5ea6\u8d8a\u5f3a\u3002\u901a\u5e38\uff0cRSSI \u503c\u5728 -30 \u5230 -90 dBm \u4e4b\u95f4\uff0c-30 \u8868\u793a\u5f88\u5f3a\u7684\u4fe1\u53f7\uff0c-90 \u8868\u793a\u4fe1\u53f7\u8f83\u5f31\u3002\u5728 WiFi \u8fde\u63a5\u6210\u529f\u540e\u8c03\u7528\u8be5\u51fd\u6570\u6765\u83b7\u53d6\u8bbe\u5907\u6240\u8fde\u63a5\u7684 WiFi \u4fe1\u53f7\u5f3a\u5ea6\uff0c\u7528\u4e8e\u663e\u793a\u7f51\u7edc\u4fe1\u606f\u7b49<\/td><\/tr>
    WiFi.encryptionType()<\/td>\u83b7\u53d6\u5f53\u524d\u8fde\u63a5\u7684 WiFi \u52a0\u5bc6\u7c7b\u578b<\/td>\u65e0<\/td>\u8fd4\u56de\u4e00\u4e2a\u6574\u6570\u503c\uff0c\u8868\u793a WiFi \u52a0\u5bc6\u7c7b\u578b\uff08\u5982 WEP\u3001WPA\u3001WPA2 \u7b49\uff09<\/td>\u901a\u8fc7\u8be5\u51fd\u6570\u53ef\u4ee5\u83b7\u53d6 WiFi \u7f51\u7edc\u7684\u52a0\u5bc6\u65b9\u5f0f\uff0c\u7528\u4e8e\u663e\u793a\u7f51\u7edc\u4fe1\u606f\u7b49<\/td><\/tr>
    WiFi.subnetMask()<\/td>\u83b7\u53d6\u5b50\u7f51\u63a9\u7801<\/td>\u65e0<\/td>\u8fd4\u56de\u5b50\u7f51\u63a9\u7801\uff08IPAddress \u7c7b\u578b\uff09<\/td>\u5728 WiFi \u8fde\u63a5\u6210\u529f\u540e\u8c03\u7528\u8be5\u51fd\u6570\u6765\u83b7\u53d6\u8bbe\u5907\u6240\u5728\u7f51\u7edc\u7684\u5b50\u7f51\u63a9\u7801\uff0c\u7528\u4e8e\u663e\u793a\u7f51\u7edc\u4fe1\u606f\u7b49<\/td><\/tr>
    WiFi.gatewayIP()<\/td>\u83b7\u53d6\u7f51\u5173 IP \u5730\u5740<\/td>\u65e0<\/td>\u8fd4\u56de\u7f51\u5173 IP \u5730\u5740\uff08IPAddress \u7c7b\u578b\uff09<\/td>\u5728 WiFi \u8fde\u63a5\u6210\u529f\u540e\u8c03\u7528\u8be5\u51fd\u6570\u6765\u83b7\u53d6\u8bbe\u5907\u6240\u5728\u7f51\u7edc\u7684\u7f51\u5173 IP \u5730\u5740\uff0c\u7528\u4e8e\u663e\u793a\u7f51\u7edc\u4fe1\u606f\u7b49<\/td><\/tr>
    WiFi.dnsIP()<\/td>\u83b7\u53d6 DNS \u670d\u52a1\u5668 IP \u5730\u5740<\/td>\u65e0<\/td>\u8fd4\u56de DNS \u670d\u52a1\u5668 IP \u5730\u5740\uff08IPAddress \u7c7b\u578b\uff09<\/td>\u5728 WiFi \u8fde\u63a5\u6210\u529f\u540e\u8c03\u7528\u8be5\u51fd\u6570\u6765\u83b7\u53d6\u8bbe\u5907\u6240\u5728\u7f51\u7edc\u7684 DNS \u670d\u52a1\u5668 IP \u5730\u5740\uff0c\u7528\u4e8e\u663e\u793a\u7f51\u7edc\u4fe1\u606f\u7b49<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
      \n
    • \u4f8b\u7a0b\u5f00\u59cb\u65f6\uff0c\u901a\u8fc7 WiFi.begin(ssid, password)<\/code> \u5f00\u59cb\u8fde\u63a5\u5230\u6307\u5b9a\u7684 WiFi \u7f51\u7edc\uff0c\u5e76\u8bb0\u5f55\u5f00\u59cb\u8fde\u63a5\u7684\u65f6\u95f4\u3002<\/li>\n\n\n\n
    • \u5728\u4e00\u4e2a\u5faa\u73af\u4e2d\uff0c\u4f7f\u7528 WiFi.status()<\/code> \u5224\u65ad WiFi \u662f\u5426\u8fde\u63a5\u6210\u529f\u3002\u5982\u679c\u5728\u8bbe\u5b9a\u7684\u8d85\u65f6\u65f6\u95f4\u5185\u4ecd\u672a\u8fde\u63a5\u6210\u529f\uff0c\u5219\u6253\u5370\u8d85\u65f6\u63d0\u793a\u5e76\u9000\u51fa\u5faa\u73af\u3002<\/li>\n\n\n\n
    • \u5982\u679c WiFi \u8fde\u63a5\u6210\u529f\uff0c\u5219\u901a\u8fc7\u8c03\u7528\u4e0a\u8ff0\u7684 WiFi \u64cd\u4f5c\u51fd\u6570\u83b7\u53d6\u5e76\u6253\u5370\u8def\u7531\u5668\u4fe1\u606f\uff08\u5982 SSID\u3001BSSID\u3001RSSI\u3001\u52a0\u5bc6\u7c7b\u578b\uff09\u548c\u672c\u673a\u7f51\u7edc\u4fe1\u606f\uff08\u5982\u672c\u5730 IP \u5730\u5740\u3001\u5b50\u7f51\u63a9\u7801\u3001\u7f51\u5173 IP \u5730\u5740\u3001DNS \u670d\u52a1\u5668 IP \u5730\u5740\uff09\u3002<\/li>\n<\/ul>\n\n\n\n
      \u6ce8\u610f\u4e8b\u9879<\/strong><\/p>\n\n\n\n
        \n
      • \u5728\u4f7f\u7528\u8be5\u4f8b\u7a0b\u4e4b\u524d\uff0c\u8bf7\u786e\u4fdd\u5c06\u4ee3\u7801\u4e2d\u7684 \"your_SSID\"<\/code> \u548c \"your_PASSWORD\"<\/code> \u66ff\u6362\u4e3a\u5b9e\u9645\u7684 WiFi \u7f51\u7edc\u540d\u79f0\u548c\u5bc6\u7801\u3002<\/li>\n\n\n\n
      • \u8be5\u4f8b\u7a0b\u5047\u8bbe WiFi \u6a21\u5757\u5df2\u7ecf\u6b63\u786e\u8fde\u63a5\u5230 ESP32\uff0c\u5e76\u4e14\u786c\u4ef6\u8fde\u63a5\u6ca1\u6709\u95ee\u9898\u3002<\/li>\n\n\n\n
      • \u5982\u679c WiFi \u8fde\u63a5\u5931\u8d25\uff0c\u53ef\u80fd\u662f\u7531\u4e8e\u5bc6\u7801\u9519\u8bef\u3001\u7f51\u7edc\u4e0d\u53ef\u7528\u6216 ESP32 \u7684 WiFi \u6a21\u5757\u51fa\u73b0\u95ee\u9898\u7b49\u539f\u56e0\u5bfc\u81f4\u7684\u3002\u53ef\u4ee5\u901a\u8fc7\u68c0\u67e5 WiFi \u7f51\u7edc\u72b6\u6001\u3001\u786e\u8ba4\u5bc6\u7801\u6b63\u786e\u6027\u7b49\u65b9\u5f0f\u8fdb\u884c\u6392\u67e5\u3002<\/li>\n<\/ul>\n\n\n\n
        1.3 ESP32 AP\u6a21\u5f0f\u5b9e\u6218<\/h3>\n\n\n\n
        #include <WiFi.h>\n\nconst char *ap_ssid = \"MyESP32_AP\";\nconst char *ap_password = \"12345678\";\n\nvoid setup() {\n  Serial.begin(115200);\n  delay(5000);\n  Serial.println();\n  Serial.println(\"Starting AP mode...\");\n\n  \/\/ \u8bbe\u7f6eESP32\u4e3aAP\u6a21\u5f0f\n  WiFi.softAP(ap_ssid, ap_password);\n\n  \/\/ \u83b7\u53d6AP\u7684IP\u5730\u5740\n  IPAddress ap_ip = WiFi.softAPIP();\n  Serial.print(\"AP IP address: \");\n  Serial.println(ap_ip);\n\n  \/\/ \u6253\u5370\u70ed\u70b9\u4fe1\u606f\n  Serial.print(\"SSID: \");\n  Serial.println(ap_ssid);\n  Serial.print(\"Password: \");\n  Serial.println(ap_password);\n}\n\nvoid loop() {\n  \/\/ \u4e3b\u5faa\u73af\u4e2d\u53ef\u4ee5\u6dfb\u52a0\u5176\u4ed6\u529f\u80fd\n  delay(1000);\n}<\/pre>\n\n\n\n
        1.4 \u968f\u5802\u7ec3\u4e60\uff1aSTA\u6a21\u5f0f\u81ea\u52a8\u91cd\u8fde\u63a5\u529f\u80fd<\/h3>\n\n\n\n
        1.5 NTP\u7f51\u7edc\u6821\u65f6<\/h3>\n\n\n\n
        NTP\uff08Network Time Protocol\uff0c\u7f51\u7edc\u65f6\u95f4\u534f\u8bae\uff09\u662f\u4e00\u79cd\u7528\u4e8e\u5728\u7f51\u7edc\u4e0a\u540c\u6b65\u8ba1\u7b97\u673a\u65f6\u949f\u7684\u65f6\u95f4\u534f\u8bae\u3002\u5b83\u901a\u8fc7\u5728\u8ba1\u7b97\u673a\u7cfb\u7edf\u4e4b\u95f4\u4ea4\u6362\u65f6\u95f4\u4fe1\u606f\u6765\u786e\u4fdd\u7f51\u7edc\u4e2d\u7684\u8bbe\u5907\u5177\u6709\u7edf\u4e00\u7684\u65f6\u95f4\u6807\u51c6\uff0c\u4ece\u800c\u4f7f\u7cfb\u7edf\u80fd\u591f\u51c6\u786e\u5730\u534f\u8c03\u548c\u6267\u884c\u4efb\u52a1\u3002<\/p>\n\n\n\n
        NTP\u5ba2\u6237\u7aef\u5411\u670d\u52a1\u5668\u53d1\u9001\u65f6\u95f4\u6233\u8bf7\u6c42\uff0c\u670d\u52a1\u5668\u8fd4\u56de\u5305\u542b\u65f6\u95f4\u6233\u7684\u54cd\u5e94\u3002\u5ba2\u6237\u7aef\u6839\u636e\u8bf7\u6c42\u548c\u54cd\u5e94\u7684\u65f6\u95f4\u6233\u8ba1\u7b97\u51fa\u5ef6\u8fdf\u548c\u504f\u79fb\u91cf\uff0c\u4ece\u800c\u8c03\u6574\u672c\u5730\u65f6\u949f\u3002NTP\u4f7f\u7528\u590d\u6742\u7684\u7b97\u6cd5\u6765\u8fc7\u6ee4\u548c\u9009\u62e9\u65f6\u95f4\u670d\u52a1\u5668\uff0c\u4ee5\u53ca\u8c03\u6574\u672c\u5730\u65f6\u949f\u3002\u5b83\u8003\u8651\u4e86\u7f51\u7edc\u5ef6\u8fdf\u3001\u65f6\u949f\u6f02\u79fb\u7b49\u56e0\u7d20\uff0c\u4ee5\u786e\u4fdd\u65f6\u95f4\u7684\u51c6\u786e\u6027\u3002NTP\u80fd\u591f\u5728LAN\u4e0a\u8fbe\u5230\u4e9a\u6beb\u79d2\u7ea7\u7684\u7cbe\u5ea6\uff0c\u5728WAN\u4e0a\u4e5f\u80fd\u8fbe\u5230\u51e0\u5341\u6beb\u79d2\u7684\u7cbe\u5ea6\u3002<\/p>\n\n\n\n
        \u4ee5\u4e0b\u4e3aNTP\u7f51\u7edc\u6821\u65f6\u4ee3\u7801\uff0c\u8bf7\u5728\u8fde\u63a5\u7f51\u7edc\u7684\u524d\u63d0\u4e0b\u8fd0\u884c\u3002<\/p>\n\n\n\n
        \n#define NTP1  \"ntp1.aliyun.com\"\n#define NTP2  \"ntp2.aliyun.com\"\n#define NTP3  \"ntp3.aliyun.com\"\n\nvoid System_SetClockByNetwork(void)\n{\n    if (WiFi.isConnected())\n    {\n        configTime(8 * 3600, 0, NTP1, NTP2,NTP3);\n        Serial.println(\"\u5df2\u57fa\u4e8eNTP\u670d\u52a1\u5668\u6821\u65f6\");\n    }    \n}\n\nu32_t times = 0;\nvoid loop() {\n    struct tm timeinfo;\n    getLocalTime(&timeinfo);\n        \n    Serial.println(&timeinfo, \"%F %T %A\"); \/\/ \u683c\u5f0f\u5316\u8f93\u51fa:2021-10-24 23:00:44 Sunday\n    Serial.print(asctime(&timeinfo));\/\/\u9ed8\u8ba4\u6253\u5370\u683c\u5f0f\uff1aMon Oct 25 11:13:29 2021\n    times++;\n    if (times == 30)\n    {\n       System_SetClockByNetwork();\n    }\n    \n\n    \/\/ \u4e3b\u5faa\u73af\u4e2d\u53ef\u4ee5\u6dfb\u52a0\u5176\u4ed6\u529f\u80fd\n    delay(1000);\n}<\/pre>\n\n\n
        \n
        \"\"<\/figure>\n<\/div>\n\n\n
        2 UDP\u7f51\u7edc\u901a\u4fe1<\/h2>\n\n\n\n
        \u7279\u6027<\/td>UDP<\/td>TCP<\/td><\/tr>
        \u8fde\u63a5\u7c7b\u578b<\/td>\u65e0\u8fde\u63a5<\/td>\u9762\u5411\u8fde\u63a5<\/td><\/tr>
        \u53ef\u9760\u6027<\/td>\u4e0d\u53ef\u9760<\/td>\u53ef\u9760<\/td><\/tr>
        \u901f\u5ea6<\/td>\u901a\u5e38\u66f4\u5feb<\/td>\u901f\u5ea6\u76f8\u5bf9\u8f83\u6162<\/td><\/tr>
        \u6570\u636e\u5355\u4f4d<\/td>\u6570\u636e\u62a5<\/td>\u5b57\u8282\u6d41<\/td><\/tr>
        \u5934\u90e8\u5927\u5c0f<\/td>8\u5b57\u8282<\/td>20-60\u5b57\u8282<\/td><\/tr>
        \u6d41\u91cf\u63a7\u5236<\/td>\u65e0<\/td>\u6709\uff08\u6ed1\u52a8\u7a97\u53e3\uff09<\/td><\/tr>
        \u62e5\u585e\u63a7\u5236<\/td>\u65e0<\/td>\u6709<\/td><\/tr>
        \u9002\u7528\u573a\u666f<\/td>\u5b9e\u65f6\u901a\u4fe1\u3001DNS\u67e5\u8be2\u3001\u6d41\u5a92\u4f53\u7b49<\/td>\u7f51\u9875\u6d4f\u89c8\u3001\u6587\u4ef6\u4f20\u8f93\u3001\u7535\u5b50\u90ae\u4ef6\u3001\u8fdc\u7a0b\u767b\u5f55\u7b49<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
        UDP\u534f\u8bae\u662f\u4e00\u79cd\u65e0\u9700\u5efa\u7acb\u8fde\u63a5\u5c31\u53ef\u4ee5\u53d1\u9001\u5c01\u88c5\u7684IP\u6570\u636e\u51fa\u53bb\u7684\u65b9\u5f0f\uff0c\u76f8\u6bd4\u8f83\u4e8eTCP\u534f\u8bae\u6765\u8bf4\u65e0\u9700\u5148\u5efa\u7acb\u8fde\u63a5\u4e4b\u540e\u518d\u8fdb\u884c\u53d1\u9001\u6570\u636e\uff0cUDP\u5c5e\u4e8e\u4e00\u79cd\u9762\u5411\u4e8b\u52a1\u7684\u7b80\u5355\u4e0d\u53ef\u9760\u4fe1\u606f\u4f20\u9001\u670d\u52a1\uff0c\u6211\u4eec\u5728\u4f7f\u7528ESP32\u8fdb\u884cUDP\u901a\u4fe1\u65f6\u76f8\u5bf9\u4e8eTCP\u8fde\u63a5\u6765\u8bf4\u7531\u4e8e\u534f\u8bae\u7b80\u5355\u6570\u636e\u4f20\u8f93\u4f1a\u66f4\u4e3a\u8fc5\u901f\uff0c\u4f46\u662f\u76f8\u5bf9\u7684\u6570\u636e\u4e5f\u5bb9\u6613\u4e22\u5931\uff0c\u6240\u4ee5UDP\u4f20\u8f93\u4fe1\u606f\u76f8\u5bf9\u6765\u8bf4\u4e0d\u90a3\u4e48\u53ef\u9760\uff0c\u4e0b\u9762\u6211\u4eec\u5c06\u4f7f\u7528ESP32\u53d1\u51fa\u70ed\u70b9\u4e4b\u540e\u7528\u7535\u8111\u4e0eESP32\u8fdb\u884c\u7b80\u5355\u7684UDP\u901a\u4fe1<\/p>\n\n\n\n
        \u6211\u4eec\u4e0b\u9762\u5c06\u7f16\u5199\u4e00\u4e2a\u5305\u542bUDP\u901a\u4fe1\u6570\u636e\u63a5\u6536\u548c\u6570\u636e\u53d1\u9001\u7684\u7a0b\u5e8f\u4ee5\u65b9\u4fbf\u6211\u4eec\u5b66\u4e60\uff0c\u6211\u4eec\u5728\u7535\u8111\u4e0a\u6253\u5f00UDP\u901a\u4fe1\u8f6f\u4ef6\u5411ESP32\u53d1\u9001\u6570\u636e\uff0cESP32\u5c06\u4f1a\u628a\u63a5\u6536\u5230\u7684\u6570\u636e\u539f\u6837\u8fd4\u56de\u5230\u7535\u8111\u4e0a<\/p>\n\n\n
        \n
        \"\"<\/figure>\n<\/div>\n\n\n
        #include <Arduino.h>\n#include <WiFi.h>\n#include <WiFiUDP.h>\n\n\/\/ WiFi\u914d\u7f6e\nconst char *ssid = \"your_SSID\";\nconst char *password = \"your_PASSWORD\";\n\n\/\/ UDP\u914d\u7f6e\nconst uint16_t udpPort = 1234; \/\/ UDP\u670d\u52a1\u5668\u7aef\u53e3\nWiFiUDP udp;\n\nvoid setup() {\n  Serial.begin(115200);\n  Serial.println(\"Starting UDP server...\");\n\n  \/\/ \u8fde\u63a5\u5230WiFi\u7f51\u7edc\n  WiFi.begin(ssid, password);\n  while (WiFi.status() != WL_CONNECTED) {\n    delay(500);\n    Serial.print(\".\");\n  }\n  Serial.println(\"\");\n  Serial.println(\"WiFi connected\");\n\n  \/\/ \u542f\u52a8UDP\u670d\u52a1\u5668\n  udp.begin(udpPort);\n  Serial.print(\"UDP Server started on port \");\n  Serial.println(udpPort);\n}\n\nvoid loop() {\n  \/\/ \u68c0\u67e5\u662f\u5426\u6709UDP\u6570\u636e\u5305\u5230\u8fbe\n  int packetSize = udp.parsePacket();\n  if (packetSize) {\n    Serial.print(\"Received packet of size \");\n    Serial.println(packetSize);\n    Serial.print(\"From \");\n    Serial.print(udp.remoteIP());\n    Serial.print(\":\");\n    Serial.println(udp.remotePort());\n\n    \/\/ \u8bfb\u53d6UDP\u6570\u636e\u5305\n    char incomingPacket[255];\n    int len = udp.read(incomingPacket, 255);\n    if (len > 0) {\n      incomingPacket[len] = 0; \/\/ \u786e\u4fdd\u5b57\u7b26\u4e32\u4ee5null\u7ed3\u5c3e\n    }\n    Serial.print(\"Contents: \");\n    Serial.println(incomingPacket);\n\n    \/\/ \u56de\u663e\u63a5\u6536\u5230\u7684\u6570\u636e\n    udp.beginPacket(udp.remoteIP(), udp.remotePort());\n    udp.write(incomingPacket);\n    udp.endPacket();\n  }\n  delay(10);\n}<\/pre>\n\n\n\n
        \u51fd\u6570\u540d<\/td>\u4f5c\u7528<\/td>\u5f62\u53c2<\/td>\u8fd4\u56de\u503c<\/td>\u6ce8\u610f\u4e8b\u9879<\/td><\/tr>
        udp.begin(port)<\/code><\/td>\u542f\u52a8UDP\u670d\u52a1\uff0c\u7ed1\u5b9a\u6307\u5b9a\u7aef\u53e3<\/td>port<\/code>\uff1a\u7ed1\u5b9a\u7684\u7aef\u53e3\u53f7\uff08uint16\\_t\uff09<\/td>\u6210\u529f\u8fd4\u56de1<\/code>\uff0c\u5931\u8d25\u8fd4\u56de0<\/code><\/td>\u7aef\u53e3\u53f7\u5e94\u4e3a1024-65535\u4e4b\u95f4\u7684\u672a\u88ab\u5360\u7528\u7684\u7aef\u53e3<\/td><\/tr>
        udp.beginPacket(ip, port)<\/code><\/td>\u5f00\u59cb\u6784\u9020\u4e00\u4e2aUDP\u6570\u636e\u5305\uff0c\u6307\u5b9a\u76ee\u6807IP\u548c\u7aef\u53e3<\/td>ip<\/code>\uff1a\u76ee\u6807IP\u5730\u5740\uff08const char\\*\u6216IPAddress\uff09\uff1bport<\/code>\uff1a\u76ee\u6807\u7aef\u53e3\u53f7\uff08uint16\\_t\uff09<\/td>\u65e0<\/td>\u5fc5\u987b\u5728\u8c03\u7528write<\/code>\u6216print<\/code>\u51fd\u6570\u524d\u8c03\u7528\u6b64\u51fd\u6570<\/td><\/tr>
        udp.write(buf, len)<\/code><\/td>\u5411UDP\u6570\u636e\u5305\u4e2d\u5199\u5165\u6570\u636e<\/td>buf<\/code>\uff1a\u8981\u5199\u5165\u7684\u6570\u636e\u7f13\u51b2\u533a\uff08const uint8\\_t\\*\uff09\uff1blen<\/code>\uff1a\u6570\u636e\u957f\u5ea6\uff08size\\_t\uff09<\/td>\u5b9e\u9645\u5199\u5165\u7684\u6570\u636e\u957f\u5ea6<\/td>\u6570\u636e\u957f\u5ea6\u4e0d\u80fd\u8d85\u8fc7UDP\u6700\u5927\u6570\u636e\u5305\u5927\u5c0f\uff08\u901a\u5e38\u4e3a512\u5b57\u8282\uff09<\/td><\/tr>
        udp.print(data)<\/code><\/td>\u5411UDP\u6570\u636e\u5305\u4e2d\u5199\u5165\u6570\u636e\uff08\u5b57\u7b26\u4e32\u6216\u6570\u5b57\uff09<\/td>data<\/code>\uff1a\u8981\u5199\u5165\u7684\u6570\u636e\uff08\u5404\u79cd\u7c7b\u578b\uff09<\/td>\u5b9e\u9645\u5199\u5165\u7684\u6570\u636e\u957f\u5ea6<\/td>\u6570\u636e\u4f1a\u88ab\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\u683c\u5f0f\u5199\u5165<\/td><\/tr>
        udp.endPacket()<\/code><\/td>\u53d1\u9001\u6784\u9020\u597d\u7684UDP\u6570\u636e\u5305<\/td>\u65e0<\/td>\u6210\u529f\u8fd4\u56de1<\/code>\uff0c\u5931\u8d25\u8fd4\u56de0<\/code><\/td>\u5fc5\u987b\u5728\u6784\u9020\u5b8c\u6570\u636e\u5305\u540e\u8c03\u7528\u6b64\u51fd\u6570\u53d1\u9001\u6570\u636e<\/td><\/tr>
        udp.parsePacket()<\/code><\/td>\u68c0\u67e5\u662f\u5426\u6709UDP\u6570\u636e\u5305\u5230\u8fbe<\/td>\u65e0<\/td>\u5230\u8fbe\u7684\u6570\u636e\u5305\u5927\u5c0f\uff08int\uff09\uff0c\u65e0\u6570\u636e\u5305\u65f6\u8fd4\u56de0<\/code><\/td>\u9700\u8981\u5b9a\u671f\u8c03\u7528\u4ee5\u68c0\u67e5\u65b0\u6570\u636e\u5305<\/td><\/tr>
        udp.read(buf, len)<\/code><\/td>\u4eceUDP\u6570\u636e\u5305\u4e2d\u8bfb\u53d6\u6570\u636e<\/td>buf<\/code>\uff1a\u8bfb\u53d6\u6570\u636e\u7684\u7f13\u51b2\u533a\uff08uint8\\_t\\*\uff09\uff1blen<\/code>\uff1a\u8981\u8bfb\u53d6\u7684\u6570\u636e\u957f\u5ea6\uff08size\\_t\uff09<\/td>\u5b9e\u9645\u8bfb\u53d6\u7684\u6570\u636e\u957f\u5ea6<\/td>\u7f13\u51b2\u533a\u5927\u5c0f\u5e94\u8db3\u591f\u5bb9\u7eb3\u8bfb\u53d6\u7684\u6570\u636e<\/td><\/tr>
        udp.remoteIP()<\/code><\/td>\u83b7\u53d6\u53d1\u9001\u65b9\u7684IP\u5730\u5740<\/td>\u65e0<\/td>\u53d1\u9001\u65b9\u7684IP\u5730\u5740\uff08IPAddress\uff09<\/td>\u9700\u5728parsePacket<\/code>\u68c0\u6d4b\u5230\u6570\u636e\u5305\u540e\u8c03\u7528<\/td><\/tr>
        udp.remotePort()<\/code><\/td>\u83b7\u53d6\u53d1\u9001\u65b9\u7684\u7aef\u53e3\u53f7<\/td>\u65e0<\/td>\u53d1\u9001\u65b9\u7684\u7aef\u53e3\u53f7\uff08uint16\\_t\uff09<\/td>\u9700\u5728parsePacket<\/code>\u68c0\u6d4b\u5230\u6570\u636e\u5305\u540e\u8c03\u7528<\/td><\/tr><\/tbody><\/table><\/figure>\n","protected":false},"excerpt":{"rendered":"
        ESP32 WIFI\u901a\u4fe1 \u2460 ESP32 Wifi\u57fa\u7840\u64cd\u4f5c \u2461 ESP32 \u81ea\u52a8\u91cd\u8fde\u63a5 \u2462 NTP\u7f51\u7edc\u6821\u65f6 \u2463 […]<\/p>\n","protected":false},"author":1,"featured_media":877,"comment_status":"open","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[43,56],"tags":[60,46,58],"class_list":["post-873","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-aimc_course","category-56","tag-aimc","tag-esp32","tag-58"],"_links":{"self":[{"href":"https:\/\/aimc.skyate.com\/index.php\/wp-json\/wp\/v2\/posts\/873","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/aimc.skyate.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/aimc.skyate.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/aimc.skyate.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/aimc.skyate.com\/index.php\/wp-json\/wp\/v2\/comments?post=873"}],"version-history":[{"count":1,"href":"https:\/\/aimc.skyate.com\/index.php\/wp-json\/wp\/v2\/posts\/873\/revisions"}],"predecessor-version":[{"id":878,"href":"https:\/\/aimc.skyate.com\/index.php\/wp-json\/wp\/v2\/posts\/873\/revisions\/878"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/aimc.skyate.com\/index.php\/wp-json\/wp\/v2\/media\/877"}],"wp:attachment":[{"href":"https:\/\/aimc.skyate.com\/index.php\/wp-json\/wp\/v2\/media?parent=873"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/aimc.skyate.com\/index.php\/wp-json\/wp\/v2\/categories?post=873"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/aimc.skyate.com\/index.php\/wp-json\/wp\/v2\/tags?post=873"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}