Udayan_219209024_DA1001_FTP.pptx
- 1. DA 1001
- 2. A Minor Project Synopsis on ARDUINO BASED CONTROL OF HOME APPLIANCES Submitted to Manipal University, Jaipur Towards the partial fulfillment for the Award of the Degree of BACHELORS OF TECHNOLOGY In ELECTRICAL AND COMPUTER ENGINEERING 2021-2022 By Udayan 219209024 Under the guidance of Mr. Divya Rishi Shrivastava & Mr. Peeyush Garg Department of Electrical Engineering Manipal University Jaipur Jaipur, Rajasthan
- 3. CERTIFICATE This is to certify that the project titled “ARDUINO BASED CONTROL OF HOME APPLIANCES” is a record of the bona fide work done by Udayan,(REG.NO:219209024) submitted for the partial fulfilment of the requirements for the completion of the Experiential Learning(DA1001) course in the Department of Engineering of Manipal University Jaipur ,during the academic session March-July 2022. Signature of the mentors :- Name of the mentor: Mr. Divya Rishi Shrivastava & Mr. Peeyush Garg Designation of mentor:Associate Professor & Assistant Professor (Senior Scale) Department of Electrical Engineering, Manipal University Jaipur.
- 4. ACKNOWLEDGEMENT I extend my deep gratitude towards my mentors Mr. Divya Rishi Shrivastava & Mr. Peeyush Garg, who haveguided me throughout the project with his valuable suggestions to enhance the quality of my project. Without his support this project would not have taken its present shape. Sincerely, UDAYAN(219209024)
- 5. TYPES OF CONTROLLER • There are three basic types of controllers: on-off, proportional and PID. Depending upon the system to be controlled, the operator will be able to use one type or another to control the process. In this Arduino example we are making on-off type controller for learning purposes. • On/Off Control :-The output from the device is either on or off, with no middle state. An on-off controller will switch the output only when the temperature crosses the set-point. For heating control, the output is on when the temperature is below the set-point, and off above set-point. • Since the temperature crosses the set-point to change the output state, the process temperature will be cycling continually, going from below set-point to above, and back below.
- 6. COMPONENTS USED Parts Quantity Arduino Uno 1 Breadboard 1 16x2 LCD 1 Potentiometer 1 Momentary switches 3 10k Ω resistors 3 5V Relays 2 DHT11 temperature & humidity sensor 1 Jumper wires Several
- 8. CONSTRUCTION 1. First we have to connect the LCD to the breadboard as shown in the circuit diagram. Pin layout is given as:- LCD Pin Destination VSS Breadboard ground rail (-) VDD Breadboard power rail (+) VO Potentiometer wiper (middle pin) RS Arduino pin 11 RW Ground rail (-) E Arduino pin 12 D4 (sometimes DB4) Arduino pin 2 D5 (sometimes DB5) Arduino pin 3 D6 (sometimes DB6) Arduino pin 4 D7 (sometimes DB7) Arduino pin 5 A (sometimes LED+) Breadboard power rail (+) K (sometimes LED-) Breadboard ground rail (-)
- 9. 2. Now, Connect the Potentiometer Seat the potentiometer in the breadboard. Connect outer pins of the potentiometer to the power and ground rails of the breadboard. The wiper pin (in the middle) will connect to the LED Vo pin. 3. Connect the momentary Switches Seat each momentary switch in the breadboard, then one pin of each switch to the breadboard power rail (+) and the other to the breadboard ground rail (-) with a 10K Ω resistor. Finally, connect each ground pin to the Arduino according to its purpose: Seat the potentiometer in the breadboard. Connect outer pins of the potentiometer to the power and ground rails of the bread Purpose Arduino Pin Temperature up 7 Toggle celsius/fahrenheit 8 Temperature down 9
- 10. 4. Connect the Temperature & Humidity Sensor Seat the temperature & humidity sensor in the breadboard, then connect the ground and power pins to the ground and power breadboard rails, respectively. Connect the signal pin to the Arduino A0 pin. 5. Connect the Relays Connect the ground and power pins of each relay to the ground and power breadboard rails, respectively. Finally, connect each relay's signal pin to the Arduino according to its purpose: Purpose Arduino Pin Heating 13 Cooling 10
- 11. CODE FOR ARDUINO • DTH library is imported for the program. In order to execute the following code:- #include <LiquidCrystal.h> #include <DHT.h> // Sensor Configuration: Should map to temperature & humidity // sensor connections to the Arduino const int DHT_PIN = A0, DHT_TYPE = DHT11; DHT sensor(DHT_PIN, DHT_TYPE); // LCD Configuration: Should map to temperature & humidity // sensor connections to the Arduino const int LCD_PIN_RS = 11, LCD_PIN_EN = 12, LCD_PIN_D4 = 2, LCD_PIN_D5 = 3, LCD_PIN_D6 = 4, LCD_PIN_D7 = 5;
- 12. LiquidCrystal lcd( LCD_PIN_RS, LCD_PIN_EN, LCD_PIN_D4, LCD_PIN_D5, LCD_PIN_D6, LCD_PIN_D7); // Button configuration const int DECREMENT_BTN_PIN = 7, TOGGLE_BTN_PIN = 8, INCREMENT_BTN_PIN = 9; // "Heater" and "cooler" configuration const int HEATER_PIN = 13, COOLER_PIN = 10; // Controls bool useFahrenheit = true; int targetF = 72, targetC = 22;
- 13. void setup() { // Serial (for logging) Serial.begin (9600); Serial.print("setup()n"); // Sensor sensor.begin(); Serial.print("tsensor initializedn"); // LCD lcd.begin(16, 2); lcd.setCursor(0, 0); lcd.clear(); Serial.print("tLCD initializedn"); // Buttons pinMode(INCREMENT_BTN_PIN, INPUT); pinMode(DECREMENT_BTN_PIN, INPUT); pinMode(TOGGLE_BTN_PIN, INPUT); Serial.print("tButtons initializedn"); Serial.print("setup() DONEn"); } void loop() { Serial.print("loop()n");
- 14. // Read Button State bool incrementTarget = digitalRead(INCREMENT_BTN_PIN); bool decrementTarget = digitalRead(DECREMENT_BTN_PIN); bool toggle = digitalRead(TOGGLE_BTN_PIN) == HIGH; bool wait = incrementTarget || decrementTarget || toggle; // Configure if(toggle) useFahrenheit = !useFahrenheit; if (incrementTarget) { targetF++; targetC++; } if (decrementTarget) { targetF--; targetC--; } const char symbol = useFahrenheit ? 'F' : 'C'; const int target = useFahrenheit ? targetF : targetC; // Read Sensor Data float temperature = sensor.readTemperature(useFahrenheit); float humidity = sensor.readHumidity(); Serial.print( "t" + String(temperature) + "°" + symbol + ", Relative Humidity " + String(humidity) + "% n"); // Write out to LCD lcdWrite(0, "Temp: " + String(temperature) + symbol); lcdWrite(1, "Target: " + String(target) + ".00" + symbol);
- 15. // Activate Temperature Control if(round(target) > round(temperature)) digitalWrite(HEATER_PIN, HIGH); else digitalWrite(HEATER_PIN, LOW); if(round(target) < round(temperature)) digitalWrite(COOLER_PIN, HIGH); else digitalWrite(COOLER_PIN, LOW); // Pause to allow finger to lift from button(s) if(wait) delay(500); } // Utility to simplify writing to LCD void lcdWrite(const bool line, const String& text){ lcd.setCursor(0, line); lcd.print(text); } • The above code is executed in order to derive the desired output
- 16. CONCLUSION • We have used combination of LCD and Temperature sensor to make simple temperature controller using Arduino. Apply temperature to sensor more than set point it will turn on the relay (Heater). and another relay when the temperature is too high. • This simple project demonstrates the effectiveness and relative ease of use in order to automate rigorous tasks and tasks which need to worik at high speed • In conclusion Arduino can preform plethora of jobs and is a very versatile and useful circuit
- 17. CITATIONS (Surya Engineering College & Institute of Electrical and Electronics Engineers, n.d.) (Bhat et al., 2007) (Uma et al., 2019) (Jyothi et al., 2017)
- 18. BIBLIOGRAPHY Bhat, O., Bhat, S., & Gokhale, P. (2007). Implementation of iot in smart homes RE tools analysis view project smart homes view project implementation of iot in smart homes. International journal of advanced research in computer and communication engineering ISO, 3297. Https://doi.Org/10.17148/ijarcce.2017.61229 Jyothi, V., Gopi krishna, M., Raveendranadh, B., & Rupalin, D. (2017). IOT based smart home system technologies. In international journal of engineering research (vol. 13, issue 2). Www.Ijerd.Com Surya engineering college, & institute of electrical and electronics engineers. (N.D.). Proceedings of the international conference on computing methodologies and communication : iccmc 2017 : 18-19, july 2017. Uma, s., Eswari, R., Bhuvanya, R., & Kumar, G. S. (2019). Iot based voice/text controlled home appliances. Procedia computer science, 165, 232–238. Https://doi.Org/10.1016/j.Procs.2020.01.085
- 19. • https://create.arduino.cc/projecthub/embeddedlab786/how-to-make- arduino-based-home-appliance-control-be33f4 • https://circuits4you.com/2016/06/06/arduino-temperature-controller/ • https://circuits4you.com/2016/06/06/arduino-temperature-controller/ • https://www.jamestharpe.com/arduino-thermostat/