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Pls. waiting 3S.."); lcd.clear(); lcd.print("WiFi Reset in 3 Sec"); lcd.setCursor(0, 1); delay(3000); Serial.println("WiFi Reset Setting OK "); lcd.clear(); lcd.print("WiFi Reset Success"); lcd.setCursor(0, 1); WiFiManager wm; wm.resetSettings(); ESP.restart(); } void IRAM_ATTR buttonInterruptWifi() { // Get the current time unsigned long interruptTime = millis(); // If interrupts come faster than 50ms, assume it's a bounce and ignore if (interruptTime - lastInterruptTime > debounceDelay) { resetWifiFlag = true; } lastInterruptTime = interruptTime; } void setup() { Serial.begin(115200); Wire.begin(); rtc.begin(); rtc.adjust(DateTime(F(__DATE__), F(__TIME__))); aht.begin(); Serial.println("seesaw Soil Sensor example!"); ss.begin(0x36); EEPROM.begin(64); ads.setGain(GAIN_ONE); ads.begin(); ads2.begin(0x49); ph.begin(10); //we store 2 value from the start address (10 & 14) ec.begin(20); //we store 2 value from the start address (20 & 24) pinMode(relayPin, OUTPUT); digitalWrite(relayPin, HIGH); pinMode(relay1Pin, OUTPUT); pinMode(relay2Pin, OUTPUT); pinMode(SW1, INPUT_PULLUP); ticker.attach(1, tick); pinMode(buttonPin, INPUT_PULLUP); attachInterrupt(digitalPinToInterrupt(buttonPin), buttonInterrupt, FALLING); pinMode(buttonPinEC, INPUT_PULLUP); pinMode(buttonPinPH, INPUT_PULLUP); pinMode(buttonPinWifi, INPUT_PULLUP); attachInterrupt(digitalPinToInterrupt(buttonPinWifi), buttonInterruptWifi, FALLING); WiFiManager wm; wm.setAPCallback(configModeCallback); lcd.begin(); // turn on LCD backlight lcd.backlight(); lcd.print("Please"); lcd.setCursor(0, 1); lcd.print("Connect WiFi"); // Set software serial baud to 115200; wm.setConnectTimeout(20); wm.setConfigPortalTimeout(180); unsigned long wifiTimeout = millis() + 300000; // 5 minutes timeout while (!wifiConnected && millis() < wifiTimeout) { if (wm.autoConnect("SMART FARM")) { wifiConnected = true; } else { delay(1000); // Wait for a moment before retrying the WiFi connection } } if (!wifiConnected) { Serial.println("Failed to connect to WiFi within 5 minutes. Proceeding without WiFi."); } else { // If WiFi connection was successful, detach the ticker. ticker.detach(); Serial.println(""); Serial.println("WiFi connected."); Serial.print("IP address: "); Serial.println(WiFi.localIP()); lcd.clear(); lcd.print("WiFi Connected"); lcd.setCursor(0, 1); // Connecting to the MQTT broker only if WiFi is connected. client.setServer(mqtt_broker, mqtt_port); client.setCallback(callback); while (!client.connected()) { String client_id = "esp32-client-"; client_id += String(WiFi.macAddress()); Serial.printf("The client %s connects to the public mqtt broker\n", client_id.c_str()); if (client.connect(client_id.c_str(), mqtt_username, mqtt_password)) { Serial.println("Public emqx mqtt broker connected"); digitalWrite(relay1Pin, HIGH); digitalWrite(relay2Pin, LOW); lcd.clear(); lcd.setCursor(0, 0); lcd.print("Connecting success"); lcd.clear(); client.subscribe("relay/control"); } else { digitalWrite(relay2Pin, HIGH); digitalWrite(relay1Pin, LOW); lcd.clear(); lcd.setCursor(0, 0); lcd.print("Failed connecting to MQTT"); Serial.print("Failed with state "); Serial.print(client.state()); lcd.clear(); } } } } // publish and subscribe //client.publish(topic, "100"); void callback(char *topic, byte *payload, unsigned int length) { String message = ""; for (int i = 0; i < length; i++) { message += (char)payload[i]; } if (message == "ON") { digitalWrite(relayPin, LOW); Serial.println("รดน้ำ"); relayState = true; client.publish("relay/status", "รดน้ำ"); } else if (message == "OFF") { digitalWrite(relayPin, HIGH); Serial.println("หยุดรดน้ำ"); relayState = false; client.publish("relay/status", "หยุดรดน้ำ"); } Serial.print("Message arrived in topic: "); Serial.println(topic); Serial.print("Message:"); for (int i = 0; i < length; i++) { Serial.print((char)payload[i]); } Serial.println(); Serial.println("-----------------------"); } void Ec() { float ecVoltage, temperature = 25; unsigned long now = millis(); if (!ads.begin()) { ecValue = 0; Serial.println(F("First ADS1115 not found. Returning to loop...")); return; } if (now - last[0] >= intervals[0]) //1000ms interval { last[0] = now; if (calibrationIsRunning) { Serial.println(F("[main]...>>>>>> calibration is running, to exit send exitph or exitec through serial <<<<<<")); //water temperature temperature = tempC; //EC ecVoltage = ads.readADC_SingleEnded(0) / 10; Serial.print(F("[EC Voltage]... ecVoltage: ")); Serial.println(ecVoltage); ecValue = ec.readEC(ecVoltage, temperature); // convert voltage to EC with temperature compensation Serial.print(F("[EC Read]... EC: ")); Serial.print(ecValue); Serial.println(F("ms/cm")); lcd.clear(); lcd.print("EC COLLECT"); lcd.setCursor(0, 1); lcd.print("ecValue"); } char cmd[10]; if (readSerial(cmd)) { strupr(cmd); if (calibrationIsRunning || strstr(cmd, "EC")) { calibrationIsRunning = true; Serial.println(F("[]... >>>>>calibration is now running PH and EC are both reading, if you want to stop this process enter EXITPH or EXITEC in Serial Monitor<<<<<")); if (strstr(cmd, "EC")) { ec.calibration(ecVoltage, temperature, cmd); //EC calibration process by Serail CMD } } if (strstr(cmd, "EXITEC")) { calibrationIsRunning = false; } } } if (now - last[3] >= intervals[3]) //5000ms interval { last[3] = now; if (!calibrationIsRunning) { //temperature = getWaterTemperature(); // read your temperature sensor to execute temperature compensation /*Serial.print("temperature:"); Serial.print(temperature, 1); Serial.println("^C");*/ ecVoltage = ads.readADC_SingleEnded(0) / 10; Serial.print("ecVoltage:"); Serial.println(ecVoltage, 4); ecValue = ec.readEC(ecVoltage, temperature); // convert voltage to EC with temperature compensation Serial.print("EC:"); Serial.print(ecValue, 4); Serial.println("ms/cm"); dtostrf(ecValue, 6, 2, result_ec); client.publish(topic_ec, result_ec); } } } void Ph() { float phVoltage, temperature = 25; unsigned long now = millis(); if (!ads2.begin(0x49)) { phValue = 0; Serial.println(F("Second ADS1115 not found. Returning to loop...")); return; } if (now - last[0] >= intervals[0]) //1000ms interval { last[0] = now; if (calibrationIsRunning) { Serial.println(F("[main]...>>>>>> calibration is running, to exit send exitph or exitec through serial <<<<<<")); //water temperature temperature = tempC; //pH phVoltage = ads2.readADC_SingleEnded(1) / 10; Serial.print(F("[pH Voltage]... phVoltage: ")); Serial.println(phVoltage); phValue = ph.readPH(phVoltage, temperature); Serial.print(F("[pH Read]... pH: ")); Serial.println(phValue); lcd.clear(); lcd.print("PH COLLECT"); lcd.setCursor(0, 1); lcd.print("phValue"); } char cmd[10]; if (readSerial(cmd)) { strupr(cmd); if (calibrationIsRunning || strstr(cmd, "PH")) { calibrationIsRunning = true; Serial.println(F("[]... >>>>>calibration is now running PH and EC are both reading, if you want to stop this process enter EXITPH or EXITEC in Serial Monitor<<<<<")); if (strstr(cmd, "PH")) { ph.calibration(phVoltage, temperature, cmd); //PH calibration process by Serail CMD } } if (strstr(cmd, "EXITPH")) { calibrationIsRunning = false; } } } if (now - last[3] >= intervals[3]) //5000ms interval { last[3] = now; if (!calibrationIsRunning) { //temperature = getWaterTemperature(); // read your temperature sensor to execute temperature compensation /*Serial.print("temperature:"); Serial.print(temperature, 1); Serial.println("^C");*/ phVoltage = ads2.readADC_SingleEnded(1) / 10; // read the voltage Serial.print("phVoltage:"); Serial.println(phVoltage, 4); phValue = ph.readPH(phVoltage, temperature); // convert voltage to pH with temperature compensation Serial.print("pH:"); Serial.println(phValue, 4); dtostrf(phValue, 6, 2, result_ph); client.publish(topic_ph, result_ph); } } } void Soil() { if (!ss.begin(0x36)) { tempC = 25; //Serial.println(F("soil temp sensor not find")); return; } float tempC = ss.getTemp(); uint16_t capread = ss.touchRead(0); char stringcapread[6]; /*Serial.println("*C"); Serial.print("Capacitive: "); Serial.println(capread); itoa(capread, stringcapread, 10);*/ Serial.print("Temperature: "); Serial.print(tempC); dtostrf(tempC, 6, 2, result_tem); client.publish(topic_tem, result_tem); delay(100); client.publish(topic_capa, stringcapread); //Serial.print("Temperature: "); //Serial.print(tempC); //delay(100); } void Light() { readReg(0x10, buf, 2); //Register Address 0x10 data = buf[0] << 8 | buf[1]; Lux = (((float)data) / 1.2); /*Serial.print("LUX:"); Serial.print(Lux); Serial.print("lx"); Serial.print("\n");*/ char msg[50]; snprintf(msg, 50, "%.2f lx", Lux); client.publish(topic_light, msg); } uint8_t readReg(uint8_t reg, const void *pBuf, size_t size) { if (pBuf == NULL) { Serial.println("pBuf ERROR!! : null pointer"); } uint8_t *_pBuf = (uint8_t *)pBuf; Wire.beginTransmission(address); Wire.write(&reg, 1); if (Wire.endTransmission() != 0) { return 0; } delay(20); Wire.requestFrom(address, (uint8_t)size); for (uint16_t i = 0; i < size; i++) { _pBuf[i] = Wire.read(); } return size; } void Tempera() { aht.getEvent(&humidity, &temp); // วัดค่าอุณหภูมิและความชื้น /*Serial.print(temp.temperature); Serial.print(" "); Serial.println(humidity.relative_humidity);*/ dtostrf(temp.temperature, 6, 2, result_temp); client.publish(topic_temp, result_temp); dtostrf(humidity.relative_humidity, 6, 2, result_humid); client.publish(topic_humid, result_humid); //delay(1000); } String getCurrentTimestamp() { DateTime now = rtc.now(); char timestampBuffer[20]; sprintf(timestampBuffer, "%04d-%02d-%02d %02d:%02d:%02d", now.year(), now.month(), now.day(), now.hour(), now.minute(), now.second()); return String(timestampBuffer); } // Update logData function to accept individual values for data logging void writeLogData(fs::FS &fs, const char *path, const char *data) { if(!SD.begin(5)){ Serial.println("Card Mount Failed"); return; } uint8_t cardType = SD.cardType(); if(cardType == CARD_NONE){ Serial.println("No SD card attached"); return; } Serial.print("SD Card Type: "); if(cardType == CARD_MMC){ Serial.println("MMC"); } else if(cardType == CARD_SD){ Serial.println("SDSC"); } else if(cardType == CARD_SDHC){ Serial.println("SDHC"); } else { Serial.println("UNKNOWN"); } uint64_t cardSize = SD.cardSize() / (1024 * 1024); Serial.printf("SD Card Size: %lluMB\n", cardSize); Serial.println("SD card initialized successfully!"); Serial.printf("Writing log data to file: %s\n", path); File file = fs.open(path, FILE_APPEND); if (!file) { Serial.println("Failed to open file for writing"); return; } if (file.println(data)) { Serial.println("Log data written"); } else { Serial.println("Write failed"); } file.close(); } void display() { lcd.clear(); lcd.setCursor(0, 1); lcd.print("Temp:"); lcd.print(temp.temperature); lcd.setCursor(0, 2); lcd.print("Humid:"); lcd.print(humidity.relative_humidity); lcd.setCursor(0, 0); lcd.print("Lux:"); lcd.print(Lux); } void reconnectWIFI() { if (WiFi.status() != WL_CONNECTED) { // Perform reconnection attempts or other handling // Example: Disconnect and reconnect WiFi.disconnect(); wm.autoConnect("AutoConnectAP"); } } void loop() { if (digitalRead(buttonPinEC) == LOW) { if (!ecButtonPressed) { ecButtonPressed = true; Ec(); if (ecValue == 0) { lcd.clear(); lcd.print("EC NOT CONNECTED"); lcd.setCursor(0, 1); lcd.print("EC Value: 0"); } else { lcd.clear(); lcd.print("EC COLLECT"); lcd.setCursor(0, 1); lcd.print(ecValue); } } } else { ecButtonPressed = false; } if (digitalRead(buttonPinPH) == LOW) { if (!phButtonPressed) { phButtonPressed = true; Ph(); if (phValue == 0) { lcd.clear(); lcd.print("PH NOT CONNECTED"); lcd.setCursor(0, 1); lcd.print("PH Value: 0"); } else { lcd.clear(); lcd.print("PH COLLECT"); lcd.setCursor(0, 1); lcd.print(phValue); } } } else { phButtonPressed = false; } if (!ecButtonPressed && !phButtonPressed) { Tempera(); reconnectWIFI(); Soil(); Light(); display(); // Assuming you have sensor readings in variables: temperature, humidity, Lux, phValue, ecValue DateTime now = rtc.now(); char timestampBuffer[20]; sprintf(timestampBuffer, "%04d-%02d-%02d %02d:%02d:%02d", now.year(), now.month(), now.day(), now.hour(), now.minute(), now.second()); String timestamp = getCurrentTimestamp(); String logData = timestamp + "," + String(temperature) + "," + String(humidity.relative_humidity) + "," + String(Lux) + "," + String(phValue) + "," + String(ecValue); writeLogData(SD, "/datalog.txt", logData.c_str()); } if (resetWifiFlag) { resetWifiFlag = false; Wifi_Reset_begin(); ESP.restart(); } delay(600); } 我尝试在 wifimanager.cpp 中进行修改，但它不起作用 首先，您发布的代码太多，您应该提取问题所在，在本例中就是涉及Wifimanager的问题。 我认为你的代码过于复杂，我过去使用过WiFiManager，有很多方法可以做你想做的事情。 我将为您提供一个解决方案，您可以扩展该解决方案以完成更聪明的事情，其想法是将连接逻辑的一部分转移到主循环中，这样您也可以根据需要轻松地包括重新连接尝试。 阅读我在代码中添加的注释并添加缺少的内容。 bool wifiConnected = 0; unsigned long connectionCheck = 300000; //5 minutes void startMqtt(){ //put all your mqtt setup/connecting stuff here } void setup(){ // here add only the code to start the WiFiManager with a 5 min timeout //also set the WiFimanager to be in non-blocking mode WiFiPortal.setConfigPortalBlocking(false); // don't do any setup of the mqtt, put that into a separate function startMqtt() } void loop(){ //if we are in the first 5 minutes when the WiFiManager is running the portal if(millis() <= connectionCheck){ WiFiPortal.process(); //you have to keep the WiFiManager running here as we are in a non-blocking mode // if we are still not connected to the WiFi if (WiFi.status() != WL_CONNECTED){ //don't run anything, exit the loop return; }else{ //we are connected but it can be at anytime in the first 5 minutes // but we only want to setup the mqtt once if(wifiConnected == 0){ connectionCheck = millis(); wifiConnected = 1; startMqtt(); } } } //put whatever code you need here it will run either if the WiFi is connected in the first 5 minutes or if it doesn't get connected after 5 minutes ///you can also do another check maybe after some time and if WiFi not connected try reconnecting again if(millis() - connectionCheck > 30000){//maybe check every 30 seconds if (WiFi.status() != WL_CONNECTED){ // 1. restart the WiFiManager // 2. close the mqtt wifiConnected = 0; connectionCheck = millis() + 300000; //we will reset this to 5 minutes in the future as we will restart the WiFi portal so the check at the begining of the loop will work again }else{ connectionCheck = millis(); 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