Team MEGR 3171 IOT Group 50:

•

AustinHouser

Published December 2, 2023

Temperature and Humidity Room Control

IntermediateFull instructions provided10 hours110

Things used in this project

Hardware components

DHT11 Temperature & Humidity Sensor (3 pins)

Breadboard (generic)

Jumper wires (generic)

Particle Photon 2

Adafruit RGB Backlight LCD - 16x2

ELEGOO 37-in-1 Sensor Module Kit V1.0

Single Turn Potentiometer- 10k ohms

Resistor 220 ohm

USB-A to Micro-USB Cable

Software apps and online services

Particle Build Web IDE

ThingSpeak API

IFTTT Maker service

Hand tools and fabrication machines

Multitool, Screwdriver

Story

Our experiment's goals have changed greatly as it has been created. Our project focuses on maintaining a regulated temperature in a room. We developed this because Austin 3D prints objects, which require a specific temperature to be met in order for the object to be produced successfully without any defects. Based on his experience with 3D printing, the printer requires an atmosphere with less than 50% humidity and above 40–50 degrees Fahrenheit in order to produce high-quality prints.

In our project, the temperature and humidity are measured using the DHT11 2-in-1 sensor. The information is then sent to the cloud via the particle photon 2 so that the other photon 2 can register the data and display them on the LCD screen. You can use our project in any room that you're 3D printing to observe the LCD panel showing the humidity and temperature. Our project's other neat feature is that, should you leave the area, it can send you emails outlining those same values. Depending on your preferences, these values can be supplied at 30-minute intervals or simultaneously with the values displayed on the screen. There is also the ability to turn off the emails and just have the values shown on your computer or the LCD screen if you know you will be using your computer values or the LCD screen more. Places this device would be invaluable in is areas like a 3D printing farm that normally take their own room and have the possibility of being off site. If you have either just one printer or a whole room full of them and you strive for quality in your prints, then this device is for you.

Data Diagram

YouTube Video

Code

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

// This #include sta// This #include statement was automatically added by the Particle IDE.
#include <Adafruit_DHT_Particle.h>
#define DHTPIN D7  
#define DHTTYPE DHT11		 

DHT dht(DHTPIN, DHTTYPE);
bool humid = false;

unsigned long myChannelNumber = 2341550;
const char * myWriteAPIKey = "YEN4QL8UCRVEP0IZ";


void setup() {
    
	Serial.begin(9600); 
	
    dht.begin();
 Particle.subscribe("tempandhumidity", handler);

}

void loop() {
    

	float h = dht.getHumidity();
	
	float f = dht.getTempFarenheit();

	if (isnan(h) || isnan(f)) {
	return;
	}

	Particle.publish("temp", String (f));
	Particle.publish("humidity", String (h));
	delay(9000);
	}
	
	 void handler(const char *event, const char *data) {
	   digitalWrite(D7, HIGH);
                delay(2500);
            digitalWrite(D7, LOW);
                delay(2500);
	 }

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



LiquidCrystal lcd(5, 4, 3, 2, 1, 0);
TCPClient client; 
int loopCount;


unsigned long myChannelNumber = 2341550;
const char * myWriteAPIKey = "YEN4QL8UCRVEP0IZ";


void setup() {
	lcd.clear();
	lcd.begin(16,2);
	
    

	lcd.setCursor(0,1);
    lcd.print("temp:");
    lcd.setCursor(0,0);
    lcd.print("humidity:");
    


    Particle.subscribe("temp", f, ALL_DEVICES);
    Particle.subscribe("humdity", h,  ALL_DEVICES);
   
}

void loop() {

	delay(15000);
	Particle.publish("tempandhumidity", PRIVATE);
}

void f(const char *event, const char *data) {
    
    lcd.setCursor(6,1);
    lcd.print(data);
    
    digitalWrite(D7, HIGH);
    delay(2500);
    digitalWrite(D7, LOW);
    delay(2500);
  }
    
    void h(const char *event, const char *data) {

   lcd.setCursor(9,0);
   lcd.print(data);
   
   digitalWrite(D7, HIGH);
   delay(2500);
   digitalWrite(D7, LOW);
   delay(2500);
  }

Credits

Jan Zavaleta Molina

1 project • 1 follower

Contact

Temperature and Humidity Room Control

Things used in this project

Hardware components

Software apps and online services

Hand tools and fabrication machines

Story

Data Diagram

YouTube Video

Schematics

Temp Circuit Schematic

LCD Circuit Schematic

Built Circuit

LCD Display

IFTTT WEBHOOK TO GMAIL

Humidity Email

Temp Email

ThingSpeak Humidity

ThingSpeak Temperature

Code

Temperature and Humidity Code

LCD Display

Credits

Jan Zavaleta Molina

AustinHouser

Comments

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Temperature and Humidity Room Control

Temperature and Humidity Room Control

Things used in this project

Hardware components

Software apps and online services

Hand tools and fabrication machines

Story

Data Diagram

YouTube Video

Schematics

Temp Circuit Schematic

LCD Circuit Schematic

Built Circuit

LCD Display

IFTTT WEBHOOK TO GMAIL

Humidity Email

Temp Email

ThingSpeak Humidity

ThingSpeak Temperature

Code

Temperature and Humidity Code

LCD Display

Credits

Jan Zavaleta Molina

AustinHouser

Comments

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