Temperature Based DC Fan Control ECE Project Abstract

The point of the project is to outline a programmed temperature based fan control system that controls the speed of the fan. On the off chance that the temperature expands the speed of the fan additionally increments, and the temperature diminishes the speed of the fan likewise diminishes.

Mechanizing the on/off condition of a fan is valuable from numerous points of view it keeps the misuse of vitality when it’s not sufficiently hot for a fan to be required; it additionally makes it conceivable to screen situations that are not happy, or conceivable, for people to screen, particularly for broadened timeframes.

By interfacing a temperature sensor to a PolyBlock in Compare Mode, it’s very easy to turn on a fan when the incentive from the temperature sensor surpasses a given edge. Associating the fundamental segments for a Temperature Controlled Fan is clear. The thought is that the temperature sensor delivers a voltage that is corresponding to the temperature in degrees.

The project comprises of a microcontroller a temperature sensor ADC DC motored fan and a DC engine driver, the temperature sensor ADC and a DC engine driver are interfaced to the microcontroller. At the point when the framework is exchanged on the microcontroller empowers every one of its peripherals and begins perusing the information from the ADC and contrasts those qualities and the set predefined esteems if the temperature esteem surpasses the set predefined esteems then the microcontroller works the DC engine driver to expand the driving ebb and flow of the engine in order to build the speed and abatement the driving ebb and flow when temperature diminishes this shows the ADC esteems are straightforwardly corresponding driving ebb and flow of the DC engine, the DC engine driver is thusly associated with the DC engine.

In this way, we outline a temperature based microcontroller worked DC fan control.

Block Diagram of Temperature Based DC Fan Control System

Wi-Fi Based Water Level Monitoring & Motor Pump Controller

This development is used to overcome the pressure of physical process of water pump motor control. The purpose can be divided in sensing unit and control unit. The sensing unit is a contactless ultrasonic sensor which can evaluate an obstacle up to 4 meters. In our case,

In our case, an obstacle for the sensor is water surface level. The ultrasonic digital sensor section is interfaced with the microcontroller. The control unit is the motor on/off the circuit.

Microcontroller used in this the project is ATMEGA328.The water level is monitored remotely using wi-fi communication with the android app. We are using ESP8266 module to transmit data to remote end. The water pump motor is connected through relay driver. The motor pump can be turned On / Off using android app.




1. ATMEGA328 Microcontroller
2. Ultrasonic sensor Module HC-SR04
3. Relay Driver
4. Water Motor Pump
5. ESP8266 Wi-Fi Module


Shared Steering Control between Driver and an Automation to avoid Accidents

AIM: The main objective of this project Shared Steering Control between Driver and an Automation to avoid Accidents when the driver is in fatigue State is to develop an embedded system, which is used follow a line and also giving a buzzer while any obstacle comes in the way.

IMPLEMENTATION: This Shared Steering Control between Driver and an Automation to avoid Accidents project is implemented 8051 based At89s52 developed board interfaced with Photosensors, ultrasonic sensor, H-Bridge driver, and motors.


DESCRIPTION: A car is having many capabilities. The car will do any number of tasks according to the program done by the controller inside. It seems a useless thing if it is uncontrollable. Here controlling a car is the main task has to consider while the driver is in fatigue state.

The car Platform employs two DC motors for the drive. In this project, the car will be followed a line up to the tracking object meanwhile any obstacle comes it will give a buzzer sound. After removing the obstacle it follows the line normally.

Since car Platform is equipped with two motors for the drive, controlling the motors, i.e. when making a right turn, the right wheel can be stopped i.e. power to the DC motor is switched off. The left wheel is driven i.e. left DC motor is on. This causes the system to take a right turn. Similarly for a left turn.

The detector circuitry consists of the ultrasonic integrated detection module. The detector houses the emitter as well as a detector. The detectors are positioned accurately either side of the line. They are placed such that they are just out of the line.


Embedded ‘C’
RIDE to write code
ISP to burn the chip


At89s52 based our own developed board
Power Supply
H-Bridge driver
Robotic platform
Ultrasonic sensor

ADVANTAGES: Low cost, automated operation, Low Power consumption.


1. The 8051 microcontroller and embedded systems by Mazidi.

2. www.wikipedia.org

3. WWW.atmel.com

4. www.8051projects.com

5. Embedded systems with 8051 by kenith j ayala

Micro Controller Based Drug Dispenser Project


With the present day environment, and with the work pressure the individual is carrying, it becomes highly impossible to take of a family member, who is undergoing therapy.

Sometimes it may be impossible to remember his/her own medicines and their time of consumption, thereby missing their medicine or the time of its administration.

In such cases, if any equipment is there which can give some sort of indication, to the individual concerned so that he can take his medicine. The same can be used even to use for other patients also.

In the present project, a microcontroller based drug dispenser is to be developed. The drug dispenser can be used to provide an indication of the medicine time, and it also dispenses the medicine to be consumed. The present project deals with a minimum of six medicines.

The doctor will prescribe each medicine time and dosage, and the same can be fed to the instrument, via a keyboard hooked up to the microcontroller. At the time when the said drug is to be consumed, the instrument provides the medicine (tablet or capsule) in the tray.

The medicine goes to the tray by rotating a motor, which dispenses only one tablet or capsule into the tray, and in the similar fashion all the drugs to be consumed are provided in the tray, and then the instrument provides the alarm.

The drugs and their timings can be programmed and can be easily programmed.

The instrument to be designed is to use an advanced microcontroller and needs to have an interface to a keyboard and also motors and sensors.

Low Cost Intelligent Wheelchair Embedded Project

Design and Implementation of Low-Cost Intelligent Wheelchair

The main aim of this project is to design of low-cost intelligent wheelchair. This chair is designed for physically disabled persons.

It designed to control devices and to ask others their minimum basic needs like water, food etc. wheelchair movement is controlled by using MEMS sensor which attached to their hands; based on hand movement the direction wheelchair is changed.

If the hand moves towards right wheelchair move right direction if hand moves towards left it moves towards left. The movement of the wheelchair is done by using motors connected to the controller through driver IC.

To wheel chair two modes (Mode0, Mode1) particular mode can be selected by using push button. Keys are used to control the devices when it is one mode and in same way same keys are used to tell his basic requirements through voice using APR9600 voice IC.

Devices are connected to controller through relays. The communication between wheel chair and devices controlling board is done by using RF technology. If RF communication is used we require RF transmitter connected to wheel chair and RF receiver connected to devices to control.

The system uses a compact circuitry built around AT89S52 microcontroller Programs are developed in Embedded C. Flash magic is used for loading programs into Microcontroller.