Temperature Controlled Dc Fan Using Microcontroller

Can be extended to pwm based output where the speed of the fan can be varied according to the duty cycle of the pwm signal.

Temperature controlled dc fan using microcontroller. Pwm is a technique by using which we can control voltage. The aim of this project is to design a temperature controlled fan using 8051 microcontroller in which the fan is automatically turned on or off according to the temperature. The microcontroller continuously reads temperature from its surroundings. Here we are going to make a temperature controlled dc fan.

In this circuit pin 3 non inverting 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. In this circuit the lm35 temperature sensor will give continuous analog output corresponding to the temperature sensed by it. The working of the project is explained here. It works on the principle of thermistor.

Temperature controlled dc fan using microcontroller august 15 2017 by administrator 47 comments a temperature controlled dc fan is a system which automatically turns on a dc fan when the ambient temperature increases above a certain limit. The aim of this project is to design a temperature controlled fan using 8051 microcontroller in which the fan is automatically turned on or off according to the temperature. The working of the project is explained here. Circuit components arduino uno.

In this circuit the lm35 temperature sensor will give continuous analog output corresponding to the temperature sensed by it. 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. The circuit can be used in cpu to reduce the heat. It is accomplished by the data communications between arduino lcd dht11 sensor module and dc fan that is controlled by using pwm.

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. By monitoring the temperature. Working of temperature controlled dc fan using thermistor. Temperature controlled dc fan can be used to control the temperature of devices rooms electronic components etc.

Arduino uno is the heart of this project and a l293d driver ic is used to drive the dc fan motor. One of the basic requirements of the people during hot weather is a cooling fan. Temperature controlled dc fan circuit principle.