ESP32對接巴法云實現配網

序言

本文部分內容摘抄原創作者巴法云-做優秀的物聯網平臺
代碼有部分修改并測試運行正常

巴法云支持免費用戶通過開發對接實現各智能音箱設備語音控制智能家居設備，并有自己的App進行配網和控制，在開發過程中省去了很多工作，推薦大家使用

巴法云關于個人開發者使用描述

準備工作

巴法云注冊與使用

巴法云開發者文檔
進入巴法云
下載App
首先需要在巴法云注冊用戶。
注冊完成之后下載App并登錄
至此巴法云準備工作就完成啦

Arduino準備

本次開發基于Arduino
請移步ESP32入門之arduino IDE環境搭建 ¹
或轉載

開發

以下是實現的具體配網流程代碼

//需要在arduino IDE軟件中---工具-->管理庫-->搜索arduinojson并安裝
#include <WiFi.h>
#include <WiFiUDP.h>
#include <ArduinoJson.h>
#include <EEPROM.h>
#include <Ticker.h>
#include <HTTPClient.h>//根據需要修改的信息
String aptype = "009";   //設備類型，001插座設備，002燈類設備，003風扇設備,005空調，006開關，009窗簾
String Name = "窗簾";    //設備昵稱，可隨意修改
String verSion = "3.1";  //3是tcp設備端口8344,1是MQTT設備
String room = "臥室";    //房間。例如客廳、臥室等，默認空
int protoType = 3;       //3是tcp設備端口8344,1是MQTT設備
int adminID = 0;         //默認空即可。企業id,建議企業用戶配置，該設備會自動綁定到該企業下，獲取id方法見接入文檔5.17節
WiFiClient client_bemfa_WiFiClient;
HTTPClient http_bemfa_HTTPClient;//檢測是否是第一次連接WIFI
bool firstWIfiConfig = false;
String topic = "";
struct config_type {char stassid[32];char stapsw[16];char cuid[40];char ctopic[32];uint8_t reboot;uint8_t magic;
};
config_type config;char config_flag = 0;      //判斷是否配網
#define MAGIC_NUMBER 0xAA  //判斷是否配網
char packetBuffer[255];    //發送數據包
WiFiUDP Udp;/** 從EEPROM加載參數
*/
uint8_t* p = (uint8_t*)(&config);
void loadConfig() {uint8_t mac[6];Serial.println(" LoadConfig.......");WiFi.macAddress(mac);EEPROM.begin(512);for (int i = 0; i < sizeof(config); i++) {*(p + i) = EEPROM.read(i);}config.reboot = config.reboot + 1;if (config.reboot >= 4) {restoreFactory();}if (config.magic != 0xAA) {config_flag = 1;}EEPROM.begin(512);for (int i = 0; i < sizeof(config); i++) {EEPROM.write(i, *(p + i));}EEPROM.commit();delay(2000);Serial.println("loadConfig Over");EEPROM.begin(512);config.reboot = 0;for (int i = 0; i < sizeof(config); i++) {EEPROM.write(i, *(p + i));}EEPROM.commit();
}/* * 恢復出廠設置
*/
void restoreFactory() {Serial.println("\r\n Restore Factory....... ");config.magic = 0x00;strcpy(config.stassid, "");strcpy(config.stapsw, "");strcpy(config.cuid, "");strcpy(config.ctopic, "");config.magic = 0x00;saveConfig();delayRestart(1);
}
/*
保存WIFI信息
*/
void saveConfig() {config.reboot = 0;EEPROM.begin(512);  // 與loadConfig統一為512字節（足夠存儲config結構體）uint8_t* p = (uint8_t*)(&config);for (int i = 0; i < sizeof(config); i++) {EEPROM.write(i, *(p + i));}EEPROM.commit();
}
Ticker delayTimer;
void delayRestart(float t) {delayTimer.attach(t, []() {ESP.restart();});
}
void apConfig(String mac) {if (config_flag == 1) {WiFi.softAP("bemfa_" + mac);Udp.begin(8266);Serial.println("Started Ap Config...");}topic = mac + aptype;// Removed blocking while loop
}/*第一次配網檢查WIFI,保存WIFI配置信息,并創建主題
*/
void checkFirstConfig() {if (firstWIfiConfig) {// 設置目標 URLhttp_bemfa_HTTPClient.begin(client_bemfa_WiFiClient, "http://pro.bemfa.com/vs/web/v1/deviceAddTopic");// 創建 JSON 對象StaticJsonDocument<200> jsonDoc;jsonDoc["uid"] = config.cuid;jsonDoc["name"] = Name;jsonDoc["topic"] = topic;jsonDoc["type"] = protoType;jsonDoc["room"] = room;jsonDoc["adminID"] = adminID;jsonDoc["wifiConfig"] = 1;  //必填字段// 將 JSON 對象轉換為字符串String jsonString;serializeJson(jsonDoc, jsonString);http_bemfa_HTTPClient.addHeader("Content-Type", "application/json; charset=UTF-8");// 發送請求int httpCode = http_bemfa_HTTPClient.POST(jsonString);if (httpCode == 200) {Serial.println("POST succeeded with code:");Serial.println(httpCode);String payload = http_bemfa_HTTPClient.getString();Serial.println(payload);//json數據解析StaticJsonDocument<200> doc;DeserializationError error = deserializeJson(doc, payload);if (error) {Serial.print(F("deserializeJson() failed: "));Serial.println(error.c_str());}int code = doc["code"];if (code == 0) {int resCode = doc["data"]["code"];if (resCode == 40006 || resCode == 0) {String docUID = doc["uid"];Serial.print("create topic ok:");Serial.println(topic);if (firstWIfiConfig) {config.reboot = 0;config.magic = 0xAA;saveConfig();}} else {Serial.println(" config ERROR.........");}} else {Serial.println(" config ERROR.........");}} else if (httpCode != 200) {Serial.println("POST failed with code:");Serial.println(httpCode);} else {Serial.println("Unknown error");}http_bemfa_HTTPClient.end();}
}// 復位或上電后運行一次:
void setup() {//在這里加入初始化相關代碼，只運行一次:Serial.begin(115200);String mac = WiFi.macAddress();mac.replace(":", "");                            //去掉:號topic = mac.substring(8) + aptype; //取mac地址的后半部分做主題用，并拼接設備類型// 初始化WiFi模式以確保MAC地址正確獲取（關鍵修改）WiFi.mode(WIFI_STA);  // 設置為STA模式初始化硬件delay(1000);           // 等待WiFi模塊初始化完成// 初始化配網（此時可正確獲取MAC地址）mac = WiFi.macAddress();mac.replace(":", "");loadConfig();                                      //加載存儲的數據apConfig(mac);                                   //加載ap// Only try to connect to WiFi if not in config modeif (config_flag == 0) {Serial.println("Connecting to WiFi...");WiFi.disconnect();                          //斷開連接WiFi.mode(WIFI_STA);                        //STA模式WiFi.begin(config.stassid, config.stapsw);  //連接路由器// Removed blocking while loop here}
}//一直循環執行:
void loop() {if (config_flag == 1) { // If in config mode, handle UDP packetsint packetSize = Udp.parsePacket();if (packetSize) {Serial.print("Received packet of size ");Serial.println(packetSize);Serial.print("From ");IPAddress remoteIp = Udp.remoteIP();Serial.print(remoteIp);Serial.print(", port ");Serial.println(Udp.remotePort());int len = Udp.read(packetBuffer, 255);if (len > 0) {packetBuffer[len] = 0;}Serial.println("Contents:");Serial.println(packetBuffer);StaticJsonDocument<200> doc;DeserializationError error = deserializeJson(doc, packetBuffer);if (error) {Serial.print(F("deserializeJson() failed: "));Serial.println(error.f_str());return;}int cmdType = doc["cmdType"].as<int>();if (cmdType == 1) {const char* ssid = doc["ssid"];const char* password = doc["password"];const char* token = doc["token"];strcpy(config.stassid, ssid);strcpy(config.stapsw, password);strcpy(config.cuid, token);//收到信息，并回復String ReplyBuffer = "{\"cmdType\":2,\"productId\":\"" + topic + "\",\"deviceName\":\"" + Name + "\",\"protoVersion\":\"" + verSion + "\"}";const char* replyBufferData = ReplyBuffer.c_str();size_t replyBufferLength = ReplyBuffer.length();Udp.beginPacket(Udp.remoteIP(), Udp.remotePort());Udp.write((const uint8_t*)replyBufferData, replyBufferLength);Udp.endPacket();} else if (cmdType == 3) {config_flag = 0;firstWIfiConfig = true;// 徹底停止UDP并清理網絡資源Udp.stop();WiFi.disconnect(true);  // 強制斷開所有連接（包括AP和STA）WiFi.mode(WIFI_OFF);    // 關閉所有WiFi模式delay(1500);            // 延長等待時間確保硬件完成釋放// 切換為STA模式并連接WiFi（添加連接前的參數校驗）Serial.println("Connecting to WiFi after provisioning...");if (strlen(config.stassid) == 0 || strlen(config.stapsw) == 0) {Serial.println("Error: SSID or password is empty");return;}WiFi.mode(WIFI_STA);WiFi.begin(config.stassid, config.stapsw);// 等待連接結果（設置超時避免永久阻塞）unsigned long start = millis();while (WiFi.status() != WL_CONNECTED && (millis() - start) < 15000) {delay(100);}if (WiFi.status() == WL_CONNECTED) {Serial.printf("Connected to %s, IP: %s\n", config.stassid, WiFi.localIP().toString().c_str());checkFirstConfig();} else {Serial.println("WiFi connection failed (timeout)");}}}} else { // If not in config mode, run normal operation// Your normal device operation code goes here// Serial.println("Config success"); // This will print repeatedly, move to setup or only print once// Removed delay(1000)}
}