Temperature based fan speed control and monitoring using. In one circuit you have a circuit controlling fan speed based on temperature measured using a 10k ntc thermistor and in another you seem to be trying to read an actual temperature using an arduino. In this project we use the concept of pwm pulse width modulation to increase or decrease the speed of fan. Index terms arduino, liquid crystal display, microcontroller, temperature control, lm 35. Pulse width modulationpwm output is fed to a dc fan through a motor driver ic. Automatic fan speed control using pic16f877a microcontroller. Circuit diagram of the temperature fan speed control and monitoring is shown in fig.
The projects are good example of embedded system basically designed using closedlooped feedback control system. Another option is to do it with a 555 timer as someone else mentioned. Realtime based temperature control using arduino ijiet 2017 b. Speed control of fan based on room temperature by using programmable logic controller plc the design of speed control of fans based on room temperature using plc technique. In this project, a temperature sensor lm 35 is used which senses any slight change in room temperature and sends it to analog to digital converter to get the digital equivalent signal. You can actually change the dc fan to other electrical devices such as light or servo motor. Temperature controlled fan with an arduino instructables. Use the arduino kit in my hand to make a smart fan that automatically turns on or off and automatically adjusts to temperature.
The mcu is an arduino uno, which is powered using a 12v power source. This is to certify that the work in the thesis entitled temperature controlled dc fan using microcontroller by ghana shyam soren, bearing roll number 111ee0236, and ram ashish gupta, bearing roll number 111ee0211, is a record of an original research work carried out by them under my. In this circuit, pin 3 noninverting terminal of op amp 741 is connected with the potentiometer and pin 2 inverting terminal is connected in between of r2 and rt1 thermistor which is making a voltage divider circuit. If u have questions about driving motor with transistor just have a look at this article and watch the video i hope. In this arduino based project, we are going to control dc fan speed according to the room temperature and show these parameter changes on a 16x2 lcd display.
This article describes the design of fan speed control system based on variation of room temperature, using an arduino microcontroller. Automatic room temperature controlled fan using arduino. Room temperature based fan speed control system using. Temperature controlled fan using arduino hobby project. Construction of a temperature controlled fan using a. Program is simple and straight forward, it basically check the temperature and compare between two temperature range 25 0 c to 60 0 c. In this project i have tried to explain how to built temperature controlled fan with an arduino basically i have used transistor in order to drive motor. In our case fanspeed will have a value of 32 at tempmin and 255 at tempmax. Arduino temperature controlled pc fan use arduino for. Arduino uno is the heart of this project and a l293d driver ic is used to drive the dc fanmotor. Design and development of arduino based automatic fan. These values are used to control the speed of the fan using pwm and the analogwrite.
Pir sensors used to detect the people who are entering or leaving. For that reason, we didnt use the high functional arduino mega model. Temperature controlled fan speed microtronics technologies. Hardware part first of all, make the connection of the lcd module with the arduino as follows. We are going to make an automatic fan that will be on when. Circuit diagram of the temperaturebased fan speed control and monitoring using arduino. Temperature controlled dc fan using microcontroller. This project is an automatic fan speed control and monitoring that controls the speed of an electric fan according to the requirement using. Dc motor speed control system the speed control of a motor is frequently required in industrial applications, robotics, home. A temperature sensor has been used to measure the temperature of the room and the speed of the fan is varied according to the room temperature using pwm technique. The speed control using pi and pid control modes is explained and an implementation of the controller using opamps is given. Will also eventually adjust speed based on the time of night. You can use this idea in your own laptop or you can make your own ventilator for the hot summer days.
The smartfan nimbushp is a triac based user programmable ac fan ac motor speed control made for the oem market. This is an arduino based project using an ntc thermistor to collect temperature data and python 3 to save. The microcontroller will send the pwm signal through pinrc2 in portc to the transistor which works as a control to the fan. The project temperature controlled fan using arduino is simply fabricated around arduino uno board and temperature sensor lm35. Arduino is at the heart of the circuit as it controls all functions. How to control ac 220v fan speed with arduinos pwm output. The proposed system temperature controlled fan using a microcontroller is used to control the speed of the fan according to the temperature and specify the temperature in the display. The results of compressor speed and fan speed with different user temperature and temperature difference a user temperature 17 temperature difference, c compressor speed, % fan speed, % 5 3. The project is based on the concept of the internet of. The duty cycle is varied from 0 to 100 to control the fan speed depending upon. The proposed system is a practical temperature controller used to control the temperature of any device based on its requirement for different industrial applications. The speed of the fan is controlled by using pwm technique according to the room temperature.
Pdf arduino and labview based control for efficient. Fan controlled by ds18b20 temperature sensor with 20x4 lcd. Temperature based fan speed controller 10 description the temperature based fan speed control system can be done by using an electronic circuit using an arduino board. Moreover, the fan speed will increase automatically if the temperature room is. The required components are microcontroller, temperature sensor, motor. The microcontroller controls the speed of an electric fan.
Working of temperature controlled dc fan using thermistor. Circuit diagram construction and working this circuit constructed with arduino uno board as a main part and lm35 as a temperature sensor. Now arduino board is very progressive among all electronic circuits, thus we employed arduino board for fan speed. Temperature controlled fan using arduino starter kit. In this project, we are going to build something very simple project, a temperature controlled relay that is used to turn on a dc fan. The nimbushp is designed to control any number of 1phase induction motors with a total current rating less than 18 amps. Conclusion in this paper, we proposed a model of automatic room temperature controlled fan using arduino uno which will detect the temperature of room by dht11 sensor and control the fan speed. Lm35 is a precision integratedcircuit whose output voltage is linearly proportional to celsius centigrade temperature.
Micro controller based automatic fan speed regulator using temperature sensor. It is accomplished by the data communications between arduino, lcd, dht11 sensor module and. For proper user interface visual indication we had also used lcd which indicate temperature as well as speed of fan. Temperature controlled fan using 8051 microcontroller. The study is aimed at controlling the speed of the fan automatically using arduino, temperature, and humidity sensors. Fan speed is varied depending upon the increased in temperature. Arduino based temperature controlled fan engineering. As the name implies, a temperature controller is an instrument used to.
It is accomplished by the data communications between arduino, lcd, dht11 sensor module and dc fan that is controlled by using pwm. Temperature based fan speed control and monitoring using arduino. How to make a temperaturecontrolled fan using arduino. In this project, a complete design and development procedure of arduino lm35 temperature sensor with lcd display has been discussed. Read the voltage from your temperature sensor using an adc pin on the micro. Introduction the paper real time based aturetemper control using arduino, controls cooling system automatically according to the room temperature. Here we are going to make a temperature controlled dc fan. The microcontroller drives transistor to control the fan speed. Control automatic speed fan using temperature lm35 based on, 50. The intention of this paper is to manipulate the rate of dc fan primarily based on room temperature the usage of arduino uno when the temperature is greater than a threshold price. The response of the controller to load variations is looked at. Then we will check if the temperature value is greater than 35 or not, if the temperature will be greater than 35, then the relay will be activated and the fan will start to rotate. Dht22 sensor is used to sense the room temperature and then we adjust speed of a dc fanmotor accordingly using pwm pulse width modulation.
Temperature sensor is interfaced to analog pin of arduino board. In the experiment, i used arduino uno as the main control board, processed the data collected by the dht11 temperature and humidity sensor and controlled the 1602 display. It uses the input from two precise dht22 based temperature sensors. According to the temperature sensor readings, the duty cycle will be automatically changed for controlling fan speed. Software code of arduino based temperature controlled fan is written in arduino programming language and compiled using arduino ide. Intelligent room temperature controller system using. According to this paper they used the following algorithm to control the speed of a fan according to temperature. Temperature controlled dc fan using atmega8 microcontroller. Digital temperature controller using arduino, here we are using arduino as main controller, this temperature controller controls the temperature of any heating device with given set points, it also displays state of the device either on or off and current temperature. The fan controller described on this project page, controls one or more pwm controlled 12v pc fans. Automatic temperature control system using arduino. We have used a triac and firing cirucit in this project. Temperature controller controls the temperature of any device according to its requirement.
This article discusses temperature based fan speed control and monitoring system using an arduino system. An arduino program is used to program the microcontroller based on the desired function. Fan speed control system using pic16f877a microcontroller. After the experimentations we performed, studying the 14. He even has a video showing the fan speed control in action. Pwm is a technique by using which we can control voltage. Share on tumblr speed of fan can be varied by changing the input supply, if w need to change the fan speed depends on temperature changes means we can implement the following application note with arduino and temperature sensor lm 35.
This project is useful in process industries for maintenance and controlling of. Pdf temperature based speed control of fan using arduino. Fan speed needs to be manually controlled every time but by using this idea the speed of the fan will be automatically adjusted according to the surrounding environment. Design and development of arduino based automatic fan control. The system is designed with arduino microcontroller and arduino are. Temperature controlled fan using arduino engineering. The arduino language is an open source project that creates.
Automatic fan speed control using temperature and humidity. We also interface 216 characters lcd which shows the outside temperature through the temperature sensor. Circuit diagram of automatic speed control fan using microcontroller 7. Functional block diagram of intelligent temperature monitor and pwm fan controller. The fanlcd remaps the temp to allow the display of fanspeed in a 0 to 100% range so you can say that the speed of the fan is directly dependent of the lm35s temperature. The system starts and shows the temperature, if the temperature reaches 25 degrees, then the green led is activated and the room starts to cool until the temperature drops to 23 degrees, the air conditioner turns off red led until the temperature rises again. A simple project using microcontroller at89s51 to control the speed of 12v fan according to the surrounding temperature. In order to achieve higher efficiency and steadystate stability, the fan speed is regulated by a softwarebased pidpwm controller using arduino uno controller. Temperature controlled fan using arduino use arduino for.
100 1383 1137 1090 1402 746 156 703 808 1191 452 1045 273 1337 312 740 667 107 811 1513 1465 1134 583 520 1282 355 1449 589 760 75 28 503 594 1016 1138 351 607 341 563 226 1237 575 872 1402 1306 1352 1016