Batch 12(temperature based fan speed control & monitor)
- 1. BACHELOR OF TECHNOLOGY IN EIECTRICALAND ELECTRONIC ENGINEERING A MINI PROJECT REPORT ON TEMPERATURE BASED FAN SPEED CONTROL & MONITOR UNDER THE GUIDANCE OF Presented By, Mrs. V. SUPRITHA P. KRISHNA SAI (18285A0228) Asst. Professor M. AKHILA (17281A0245) G. VIVEK (18285A0231)
- 2. OBJECTIVE OF PROJECT Measure the room temperature Display the current temperature in the LCD Vary the speed of fan accordingly Reducing the power consumption
- 3. CONTENTS: INTRODUCTION BLOCK DIAGRAM HARDWARE EQUIPMENTS ARDUINO UNO TEMPERATURE SENSOR LM35 LCD 16X2 DISPLAY DC MOTOR CIRCUIT DIAGRAM CIRCUIT DISCRIPTION APPLICATIONS ADVANTAGES FUTURE SCOPE CONCLUTION
- 4. INTRODUCTION A simple introduction about the temperature controller circuit. This circuit project is mainly used for indicating temperature , controlling temperature. Microprocessor forms the processing part. In temperature controller circuit, there are two parts consisting of LM 35 interface with ARDUINO UNO. LCD interface with ARDUINO. The hardware circuit of temperature controller need the programming
- 6. HARD WARE EQUIPMENTS Arduino UNO Temperature Sensor LM 35 LCD Display LED 16 X 2 Display DC Motor 9V Battery 9V Resistor Potentiometer Capacitor Transistor Diode
- 7. ARDUINO UNO The Arduino Uno is a microcontroller board based on the ATmega328 (datasheet). It has 14 digital input/output pins (of which 6 can be used as PWM outputs), 6 analog inputs, a 16 MHz crystal oscillator, a USB connection, a power jack, an ICSP header, and a reset button.
- 8. TEMPERATURE SENSOR(LM35) The LM35 series are precision integrated- circuit temperature sensors, whose output voltage is linearly proportional to the Celsius (Centigrade) temperature. The LM35 does not require any external calibration or trimming to provide typical accuracies of ±1⁄4˚Cat room temperature.
- 9. LCD DISPLAY 16 X 2 LCD (Liquid Crystal Display) screen is an electronic display module and find a wide range of applications. A 16x2 LCD display is very basic module and is very commonly used in various devices and circuits. A 16x2 LCD means it can display 16 characters per line and there are 2 such lines. Two registers in use:- command register and data register
- 10. DC- MOTOR A DC motor is an electric motor that runs on direct current (DC) electricity. In any electric motor, operation is based on simple electromagnetism. A simple 2-pole DC electric motor (here red represents a magnet or winding with a "North" polarization, while blue represents a magnet or winding with a "South" polarization).
- 11. CIRCUIT DIAGRAM
- 12. CIRCUIT DESCRIPTION As we have a look into the circuit diagram, we have seen that the 16x2 LCD panel indicates the output result to show. The 1k potentiometer is connected to the 3 no pin of that LCD panel to control the intensity of brightness. The main portion of the LCD panel is connected to the Arduino Board with pin 2,3,4,5,6 and 7 of UNO. The pin 8 of Arduino is connected to the LED indicator to indicate the peak level of temperature and fan speed
- 13. The pin 11 is connected to the capacitor which controls the fan speed intensity. The capacitor discharges through the transistor BD139. The transistor get biased through this capacitor and then controls the fan speed. The diode IN4007 acts as a switch to stop the fan below a certain cut-off level. The temperature input is given to the pin A0 of Arduino from pin 2 of LM35. Contd..
- 14. APPLICATION Personal computers Exhaust fans in large hotels Washing machines CD and DVD players The circuit can be used for Car Engine to reduce the heat. This project can be used in Home. This project can be used in Industry. This will help in saving the energy / electricity
- 15. ADVANTAGES It is very economical and easy to handle by the user. Speed varies automatically, so that it controls the speed without using it manually. It is help full to disabled People. It is very easy to install in offices, houses etc. Save energy by slowing down its speed in low temperature.
- 16. FUTURE SCOPE The project will concentrate on electric standing fan rather than other type of fan such as ceiling fan. We can monitor more parameters like humidity, light and at the same time control them. We can send this data to a remote location using mobile or internet. We can draw graphs of variations in these parameters using computer. When temperature exceeds the limit, a call will be dialed to the respective given number by an automatic Dialer system
- 17. CONCLUSION This paper elaborates the design and construction of fan speed control system to control the room temperature. The temperature sensor was carefully chosen to gauge the room temperature. Moreover, the fan speed will increase automatically if the temperature room is increased. As conclusion, the system which designed in this work was perform very well, for any temperature change and can be classified as automatic control.
- 18. Thank You