MEGR 3171 Popcorn Monitor

// This #include statement was automatically added by the Particle IDE.
#include <ThingSpeak.h>

// This #include statement was automatically added by the Particle IDE.
#include <Grove_Temperature_And_Humidity_Sensor.h>

//An example of DHT11 for ARGON

#define DHTPIN  D2     // set pin

TCPClient client;

unsigned long myChannelNumber = 2112283;    // change this to your channel number
const char * myWriteAPIKey = "HOLN2M104BOAPV74"; // change this to your channels write API key

unsigned long previousMillis = 0;

DHT dht1(DHTPIN);

// Initialize Grove Button on digital pin D4
const int BUTTON_PIN = D4;

// Initialize variables to track the state of the button
bool buttonState = LOW;
bool lastButtonState = LOW;
bool isOn = false;

// Set the interval for taking readings
const unsigned long INTERVAL = 500; // in milliseconds

// Set the interval for printing readings
const unsigned long PRINT_INTERVAL = 5000; // in milliseconds
unsigned long lastPrintTime = 0;

void setup() {
  Serial.begin(9600);
  Serial.println("DHT11 Begin!!!");
  ThingSpeak.begin(client);
  pinMode(BUTTON_PIN, INPUT_PULLUP);
}

void loop() {
  // Read the button state
  buttonState = digitalRead(BUTTON_PIN);

  // Check if the button state has changed
  if (buttonState != lastButtonState) {
    // If the button is pressed, toggle the state of isOn
    if (buttonState == LOW) {
      isOn = !isOn;
    }
    // Delay for debounce
    delay(50);
  }

  // Save the current button state for comparison
  lastButtonState = buttonState;

  // If the code is on, take and print readings
  if (isOn) {
    // Check if it's time to take a reading
    if (millis() - lastPrintTime >= INTERVAL) {
      //Read Humidity
      float h = dht1.getHumidity();
      // Read temperature as Celsius
      float t = dht1.getTempCelcius();
      // Read temperature as Farenheit
      float f = dht1.getTempFarenheit();

      Serial.print("Humid: ");
      Serial.print(h);
      Serial.println("%  ");
      Serial.print("Temp: ");
      Serial.print(t);
      Serial.println("*C ");
      Serial.print("Temp: ");
      Serial.print(f);
      Serial.println("*F ");
      Serial.println();

      String Humidity = "{" + String(h) + "}";

      String Temp = "{" + String(f) + "}";

      Particle.publish("Temp", Temp);

      Particle.publish("Humidity", Humidity);

      ThingSpeak.setField(1,String(h));
      ThingSpeak.setField(2,String(f));
////////
void myHandler(const char A_Humidity, const char data)
{
ThingSpeak.setField(1,data);
}

void myHandler(const char A_Temp, const char data)
{
ThingSpeak.setField(2,data);
}
////////
      // Update the last print time
      lastPrintTime = millis();

      // Write to ThingSpeak, field 1, immediately
      ThingSpeak.writeFields(myChannelNumber, myWriteAPIKey);

      delay(15000); // ThingSpeak will only accept updates every 15 seconds.
    }
  }
  else {
    // If the code is off, reset the last print time
    lastPrintTime = millis();
  }
}