489 lines
15 KiB
Arduino
489 lines
15 KiB
Arduino
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/******************************************************************************************************************************
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* Date: 28/02/2023
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* Filename: LabSage_v1.1.5
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* Description: ESP Multitasking + EMS
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* Update - Changing thresholds, re-timing tasks - Resetting GAS threshold as constant value due to large difference
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*****************************************************************************************************************************/
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// INCLUDE LIBRARIES
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#include <TaskScheduler.h> // Install TaskScheduler Arduino Library
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#include <WiFiManager.h> // Install WiFiManager Library
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#include <FirebaseESP8266.h> // Install Firebase ESP8266 library (Mobitz?)
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#include <MB_NTP.h>
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#include <ESP8266WiFi.h>
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#include <DHT.h> // Install DHT11 Library and Adafruit Unified Sensor Library
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#include <Wire.h>
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#include <Adafruit_Sensor.h>
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#include <Adafruit_ADXL345_U.h> // Install Adafruit ADXL345 accelerometer library
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// FIREBASE RTDB PATH AND KEY
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#define FIREBASE_HOST "https://smartlab-9b83e-default-rtdb.firebaseio.com/"
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#define FIREBASE_AUTH "AIzaSyCiO5owTmUgosDyjL0_SqpxRoAwgKtn5-o"
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// SETTING PINS FOR SENSORS
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#define LED D1
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#define DHTPIN D2 // Connect Data pin of DHT to D2
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#define GASPIN A0 // Gas sensor analog pin
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#define BUZZERPIN D7 // Connect LED to D7
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#define SDA D5
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#define SCL D6
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// DHT VARIABLE SET
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#define DHTTYPE DHT11
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// OBJECT DECLARATIONS
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Scheduler runner;
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WiFiManager wm;
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DHT dht(DHTPIN, DHTTYPE);
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Adafruit_ADXL345_Unified accel = Adafruit_ADXL345_Unified(12345);
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//MQ2 parameter for LPG/Smoke sensing
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float gasSensor_volt;
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float RS;
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const float R0 = 2.12;
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const float b = 1.5120222;
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const float m = -0.33975668;
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float RS_R0_ratio;
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float ppm_log;
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float ppm;
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// VARIABLE DEFINITION
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float t, h, g;
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String buzz = "0";
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String coll = "0";
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float x, y, z;
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String PATH = "Devices/";
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String UID = "";
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float sum = 0;
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int k = 0;
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// THRESHOLD VALUES
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const float COLLISION_THRESHOLD = 10.0; // Too sensitive perhaps?
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const float SMOKE_THRESHOLD = 15000; // NEEDS TO BE UPLOADED TO THE BOARD YET!!!
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// DEFINE FIREBASE DATA OBJECT
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FirebaseData firebaseData;
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FirebaseData buzzerData;
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FirebaseJson json;
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// FUNCTION DECLARATION
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void dhtSetup(void);
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void gasSetup(void);
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void ambiRead(void);
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void accelSetup(void);
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void accelRead(void);
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void sensorUpdate(void);
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void upload(void);
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void uploadAlert(void);
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void sensorReset(void);
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void reconnection(void);
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// TASK SCHEDULE FUNCTIONS
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void task1Callback() { // Sensor update
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// code for task 1
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sensorUpdate();
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}
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void task2Callback() { // Sensor value upload
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// code for task 2
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if (WiFi.status() == WL_CONNECTED) {
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upload();
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}
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else {
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Serial.println("Connection Lost!");
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digitalWrite(LED, !digitalRead(LED));
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Serial.println("Please Reconnect to a different WiFi.\nStarting Soft API...");
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reconnection();
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}
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}
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void task3Callback(){ // Reset receive and execute
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if (WiFi.status() == WL_CONNECTED){
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if (Firebase.getString(buzzerData, PATH + "/reset") && buzzerData.stringData() == "1") { //Read from firebase for application
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Serial.println("Call to reset");
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sensorReset();
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if (Firebase.setString(firebaseData, PATH + "/reset", "0"))
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{
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Serial.println("PASSED");
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Serial.println("PATH: " + firebaseData.dataPath());
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Serial.println("TYPE: " + firebaseData.dataType());
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Serial.println("ETag: " + firebaseData.ETag());
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Serial.println("------------------------------------");
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Serial.println();
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}
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else
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{
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Serial.println("FAILED");
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Serial.println("REASON: " + firebaseData.errorReason());
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Serial.println("------------------------------------");
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Serial.println();
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}
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uploadAlert();
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}
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if (buzz == "1" || coll== "1"){
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uploadAlert();
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}
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}
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else {
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Serial.println("Connection Lost!");
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digitalWrite(LED, !digitalRead(LED));
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Serial.println("Please Reconnect to a different WiFi.\nStarting Soft API...");
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reconnection();
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}
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}
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Task t1(1000, TASK_FOREVER, &task1Callback); // Task rate: Once every second
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Task t2(60000, TASK_FOREVER, &task2Callback); // Task rate: Once every minute
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Task t3(3000, TASK_FOREVER, &task3Callback); // Task rate: Once every 3 seconds
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// SETUP
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void setup(){
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pinMode(LED, OUTPUT);
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digitalWrite(LED, LOW);
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pinMode(BUZZERPIN, OUTPUT);
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Serial.begin(9600);
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dhtSetup();
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gasSetup();
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accelSetup();
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UID = ESP.getChipId(); // Extract Unique Chip ID for authentication and identity purposes
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Serial.printf("ESP8266 Unique Chip id = %s\n", UID); // For hex representation, use %08X
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Serial.println();
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Serial.println("Opening WiFi AP");
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// wm.resetSettings(); // Comment out before deployment
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bool res;
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wm.setConnectTimeout(60);
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wm.setConfigPortalTimeoutCallback(reconnection);
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wm.setWiFiAutoReconnect(true);
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res = wm.autoConnect("SMI_LBS_ESP"); // auto generated AP name from chipid
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if (!res) {
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Serial.println("Failed to connect");
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}
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else {
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//if you get here you have connected to the WiFi
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Serial.println("Connected");
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}
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Firebase.begin(FIREBASE_HOST, FIREBASE_AUTH); // Begin Firebase Server
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Firebase.reconnectWiFi(true);
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Serial.println(PATH.concat(UID)); // Dynamic database path allocation
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digitalWrite(LED, HIGH);
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runner.init(); // Initialise Scheduler, add tasks to it, and then enable the tasks for multitasking
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runner.addTask(t1);
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runner.addTask(t2);
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runner.addTask(t3);
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t1.enable();
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t2.enable();
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t3.enable();
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}
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// MAIN LOOP CODE
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void loop() {
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runner.execute(); // Run the tasks simultaneously
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}
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void reconnection(void) { // Re-establishing network with new Wi-Fi using Soft AP
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bool res = wm.autoConnect();
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if (!res) {
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Serial.println("Failed to connect");
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}
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else {
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Serial.println("Connected");
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}
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}
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void accelSetup(void) { // Setup Accelerometer
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Serial.println("Accelerometer Test"); Serial.println("");
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// Initialise I2C communication as MASTER
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Wire.begin(SDA, SCL);
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if (!accel.begin()) {
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Serial.println("Failed to initialize ADXL345 sensor.");
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while (1);
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}
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accel.setRange(ADXL345_RANGE_16_G); // Setting Max Range
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// Get accelerometer data
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sensors_event_t event;
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accel.getEvent(&event);
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// Assign current values to states
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x = event.acceleration.x;
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y = event.acceleration.y;
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z = event.acceleration.z;
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Serial.println("Accelerometer Ready!"); Serial.println("");
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}
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void accelRead(void) { // Read Accelerometer
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// Get accelerometer data
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sensors_event_t event;
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accel.getEvent(&event);
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// Print the accelerometer data to serial monitor
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Serial.print("Acceleration: ");
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Serial.print(event.acceleration.x);
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Serial.print(" m/s^2 ");
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Serial.print(event.acceleration.y);
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Serial.print(" m/s^2 ");
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Serial.print(event.acceleration.z);
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Serial.println(" m/s^2 ");
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if (isnan(event.acceleration.x) || isnan(event.acceleration.y) || isnan(event.acceleration.z)) {
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Serial.println(F("Failed to read from Accelerometer!"));
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return;
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}
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// Check if there is a collision
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if ((abs(event.acceleration.x - x)) > COLLISION_THRESHOLD ||
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(abs(event.acceleration.y - y)) > COLLISION_THRESHOLD ||
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(abs(event.acceleration.z - z)) > COLLISION_THRESHOLD) {
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Serial.println("Collision detected!");
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coll = "1";
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tone(BUZZERPIN, 100);
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}
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// Assign current values to states
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x = event.acceleration.x;
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y = event.acceleration.y;
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z = event.acceleration.z;
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}
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void dhtSetup(void) { // Setup DHT11
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Serial.println(F("DHT11 setting up..."));
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dht.begin();
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Serial.println("DHT11 ready!");
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}
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void gasSetup(void) { // Setup MQ-2 Smoke Sensor
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Serial.println("Gas Sensor setting up...");
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pinMode(GASPIN, INPUT_PULLUP);
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Serial.println("Gas Sensor ready!");
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Serial.printf("\nSmoke Threshold: %f ppm\n", SMOKE_THRESHOLD);
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Serial.println("");
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}
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void ambiRead(void) { // Temp, Humidity, Gas reading
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// Read relative humidity in % (the default)
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h = dht.readHumidity();
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// Read temperature as Celsius (the default)
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t = dht.readTemperature();
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// Read gas sensor analog data
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float gasSensorValue = analogRead(GASPIN);
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gasSensor_volt = gasSensorValue / 1024 * 5.0;
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RS = ((5 - gasSensor_volt) / gasSensor_volt);
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RS_R0_ratio = RS / R0;
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ppm_log = ((log (RS_R0_ratio) - b) / m);
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ppm = pow (10, ppm_log);
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g = ppm;
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// Check if any reads failed and exit early (to try again).
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if (isnan(h) || isnan(t)) {
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Serial.println(F("Failed to read from DHT sensor!"));
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return;
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}
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if(isnan(g)){
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Serial.println(F("Failed to read from Gas sensor!"));
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return;
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}
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// Check if there is a fire/smoke
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if (g > SMOKE_THRESHOLD) {
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sum += g;
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k++;
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Serial.println("Smoke detected!");
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buzz = "1";
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tone(BUZZERPIN, 400);
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}
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else {
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if(k<=10){
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buzz = "0";
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if (coll == "0") {
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noTone(BUZZERPIN);
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}}
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}
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Serial.print(F("Humidity: "));
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Serial.print(h);
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Serial.print(F("% Temperature: "));
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Serial.print(t);
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Serial.print(F("C PPM:"));
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Serial.print(g);
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Serial.println();
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}
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void sensorUpdate(void) {
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ambiRead();
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accelRead();
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}
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void sensorReset(void) {
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coll = "0";
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buzz = "0";
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noTone(BUZZERPIN);
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sum = 0;
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k = 0;
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}
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void upload(void) {
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if (Firebase.setFloat(firebaseData, PATH + "/temperature", t))
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{
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Serial.println("PASSED");
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Serial.println("PATH: " + firebaseData.dataPath());
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Serial.println("TYPE: " + firebaseData.dataType());
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Serial.println("ETag: " + firebaseData.ETag());
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Serial.println("------------------------------------");
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Serial.println();
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}
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else
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{
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Serial.println("FAILED");
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Serial.println("REASON: " + firebaseData.errorReason());
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Serial.println("------------------------------------");
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Serial.println();
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}
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if (Firebase.setFloat(firebaseData, PATH + "/humidity", h))
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{
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Serial.println("PASSED");
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Serial.println("PATH: " + firebaseData.dataPath());
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Serial.println("TYPE: " + firebaseData.dataType());
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Serial.println("ETag: " + firebaseData.ETag());
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Serial.println("------------------------------------");
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Serial.println();
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}
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else
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{
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Serial.println("FAILED");
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Serial.println("REASON: " + firebaseData.errorReason());
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Serial.println("------------------------------------");
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Serial.println();
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}
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if (Firebase.setFloat(firebaseData, PATH + "/ppm", g))
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{
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Serial.println("PASSED");
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Serial.println("PATH: " + firebaseData.dataPath());
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Serial.println("TYPE: " + firebaseData.dataType());
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Serial.println("ETag: " + firebaseData.ETag());
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Serial.println("------------------------------------");
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Serial.println();
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}
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else
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{
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Serial.println("FAILED");
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Serial.println("REASON: " + firebaseData.errorReason());
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Serial.println("------------------------------------");
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Serial.println();
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}
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if (Firebase.setFloat(firebaseData, PATH + "/x", x))
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{
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Serial.println("PASSED");
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Serial.println("PATH: " + firebaseData.dataPath());
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||
|
|
Serial.println("TYPE: " + firebaseData.dataType());
|
||
|
|
Serial.println("ETag: " + firebaseData.ETag());
|
||
|
|
Serial.println("------------------------------------");
|
||
|
|
Serial.println();
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
Serial.println("FAILED");
|
||
|
|
Serial.println("REASON: " + firebaseData.errorReason());
|
||
|
|
Serial.println("------------------------------------");
|
||
|
|
Serial.println();
|
||
|
|
}
|
||
|
|
if (Firebase.setFloat(firebaseData, PATH + "/y", y))
|
||
|
|
{
|
||
|
|
Serial.println("PASSED");
|
||
|
|
Serial.println("PATH: " + firebaseData.dataPath());
|
||
|
|
Serial.println("TYPE: " + firebaseData.dataType());
|
||
|
|
Serial.println("ETag: " + firebaseData.ETag());
|
||
|
|
Serial.println("------------------------------------");
|
||
|
|
Serial.println();
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
Serial.println("FAILED");
|
||
|
|
Serial.println("REASON: " + firebaseData.errorReason());
|
||
|
|
Serial.println("------------------------------------");
|
||
|
|
Serial.println();
|
||
|
|
}
|
||
|
|
if (Firebase.setFloat(firebaseData, PATH + "/z", z))
|
||
|
|
{
|
||
|
|
Serial.println("PASSED");
|
||
|
|
Serial.println("PATH: " + firebaseData.dataPath());
|
||
|
|
Serial.println("TYPE: " + firebaseData.dataType());
|
||
|
|
Serial.println("ETag: " + firebaseData.ETag());
|
||
|
|
Serial.println("------------------------------------");
|
||
|
|
Serial.println();
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
Serial.println("FAILED");
|
||
|
|
Serial.println("REASON: " + firebaseData.errorReason());
|
||
|
|
Serial.println("------------------------------------");
|
||
|
|
Serial.println();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
void uploadAlert(void){
|
||
|
|
if (Firebase.setString(firebaseData, PATH + "/buzzer", buzz))
|
||
|
|
{
|
||
|
|
Serial.println("PASSED");
|
||
|
|
Serial.println("PATH: " + firebaseData.dataPath());
|
||
|
|
Serial.println("TYPE: " + firebaseData.dataType());
|
||
|
|
Serial.println("ETag: " + firebaseData.ETag());
|
||
|
|
Serial.println("------------------------------------");
|
||
|
|
Serial.println();
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
Serial.println("FAILED");
|
||
|
|
Serial.println("REASON: " + firebaseData.errorReason());
|
||
|
|
Serial.println("------------------------------------");
|
||
|
|
Serial.println();
|
||
|
|
}
|
||
|
|
if (Firebase.setString(firebaseData, PATH + "/collision", coll))
|
||
|
|
{
|
||
|
|
Serial.println("PASSED");
|
||
|
|
Serial.println("PATH: " + firebaseData.dataPath());
|
||
|
|
Serial.println("TYPE: " + firebaseData.dataType());
|
||
|
|
Serial.println("ETag: " + firebaseData.ETag());
|
||
|
|
Serial.println("------------------------------------");
|
||
|
|
Serial.println();
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
Serial.println("FAILED");
|
||
|
|
Serial.println("REASON: " + firebaseData.errorReason());
|
||
|
|
Serial.println("------------------------------------");
|
||
|
|
Serial.println();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
/*
|
||
|
|
void startCustomConfigPortal() {
|
||
|
|
WiFiManager wifiManager;
|
||
|
|
wifiManager.setConfigPortalTimeout(120);
|
||
|
|
wifiManager.setMinimumSignalQuality(-1);
|
||
|
|
const char * pass = "SM1ota#W"; //"46EAD57A89F1D240CBD7704B6FAD544C"; //"46ead57a89f1d240cbd7704b6fad544c";
|
||
|
|
WiFiManagerParameter password("", "Developer Options Password", "", 40);
|
||
|
|
wifiManager.addParameter(&password);
|
||
|
|
|
||
|
|
WiFiManagerParameter customHtmlOptions("<br><a href='/info'>Info</a> <a href='/update'>Update</a>");
|
||
|
|
const char * c1 = customHtmlOptions.getValue();
|
||
|
|
wifiManager.setCustomHeadElement(c1);
|
||
|
|
|
||
|
|
if (!wifiManager.startConfigPortal("Custom Config Portal")) {
|
||
|
|
Serial.println("Failed to connect and hit timeout");
|
||
|
|
delay(3000);
|
||
|
|
ESP.reset();
|
||
|
|
delay(5000);
|
||
|
|
}
|
||
|
|
|
||
|
|
const char * uPass = password.getValue();
|
||
|
|
Serial.println();
|
||
|
|
if (strcmp(uPass, pass) == 0) {
|
||
|
|
WiFiManagerParameter customHtmlDeveloperOptions("<br><a href='/info'>Info</a> <a href='/update'>Update</a>");
|
||
|
|
const char * c = customHtmlDeveloperOptions.getValue();
|
||
|
|
wifiManager.setCustomHeadElement(c);
|
||
|
|
} else {
|
||
|
|
wifiManager.setCustomHeadElement("");
|
||
|
|
wifiManager.startConfigPortal("Custom Config Portal");
|
||
|
|
}
|
||
|
|
}
|
||
|
|
*/
|