National University of Science and Technology
School of Electrical Engineering and Computer Science
Department of Electrical Engineering
Faculty Member: Dr. Ahmad Rasheed
Dated: 12/10/22
Lab Engineer: Engr. Ali
Semester: 5th
Section:
EE-383-Instrumentation and Measurements
Lab 5 Arduino Task: Temperature Sensing using Arduino
Viva + Lab
Performance
(Individual)
Name
Analysis of
data in Lab
Report
Teamwork
Total
5 Marks
20 Marks
Reg. No
5+5 Marks
5 Marks
Temperature Sensing using Arduino
Equipment used:
DHT11 – Temperature and Humidity Sensor
Arduino UNO
LEDs
Bread Board
Jumper Wires
Task
Code:
//Including libraries
#include <LiquidCrystal.h>
#include "DHT.h"
DHT dht;
const int rs = 12, en = 11, d4 = 5, d5 = 4, d6 = 3, d7 = 6; //declaring constants for pins
LiquidCrystal lcd(rs, en, d4, d5, d6, d7); //initializing lcd
void setup() {
Serial.begin(9600);//setting up serial frequency
Serial.println();
Serial.println("Status\tHumidity (%)\tTemperature (C)");//display on serial monitor
dht.setup(2);//initializing sensor with the pin it is attached with on arduino
lcd.begin(16, 2); //setting up lcd with its number of columns and rows
lcd.print("Temp
Hum"); //printing the heading on lcd. this needs to be done once
}
void loop() {
delay(dht.getMinimumSamplingPeriod()*2);
float humidity = dht.getHumidity();
//delay in loop for sampling of the sensor
//gets humidity level
float temperature = dht.getTemperature(); //gets temperature value
Serial.print(dht.getStatusString());
//prints the status of the sensor
Serial.print("\t");//displays on the serial monitor
Serial.print(humidity, 1);
Serial.print("\t\t");
Serial.print(temperature, 1);
Serial.print("\t\t");
lcd.setCursor(0, 1);
lcd.print(temperature);
lcd.setCursor(9, 1);
lcd.print(humidity);
}
Simulation:
Results on serial monitor
Hardware Pic
Conclusion
This task was implemented on Arduino mega 2560, DHT11 sensor and 16x2 LCD. The pictures of the
implementation have been attached above.
This lab familiarized students with DHT11 sensor and Arduino. Students got knowledge of interfacing the
sensor with Arduino. The results received from the sensor were displayed on serial monitor as well as 16x2
LCD which was also connected to Arduino.