School Bag Security Device Microcontroller Project

Bag Security is a device developed in partial fulfillment of the course of Microcontroller and its applications that gives an indication to the owner whenever the Bag zip is opened when it is carrying. This School Bag Security project also displays the number of books in the bag which is useful for children below 10 years to verify whether they are carrying the same number of books they bought from home or not.




For increment first, the IR sensor1 will be detected and then IR sensor2 will be detected then only the book will be increment. IR sensor1 should be placed near the bag zip and IR sensor2 should be placed below the IR sensor1.

This shows the connections for our project left side two switches are IR sensors and the left side two switches are one switch and another IR sensor



For Decrement first, the IR sensor2 will be detected and then IR sensor1 will be detected then only the book will be decrement. IR sensor1 should be placed near the bag zip and IR sensor2 should be placed below the IR sensor1.


EXPLANATION for case3:

The buzzer should ring only when we are carrying the bag and also when the zip is opened the truth table explains that. So, we kept the switch on the bag Zip and the Ir sensor below the zip inside the bag. When the switch is on and also the Ir sensor detects the light then the buzzer or LED will be ON.


We have designed a device that will ring the buzzer only when we are carrying the bag and also when the zip is opened. And also, we have included an LCD which displays the number of books in the Bag.


  • Microprocessor development board
  • AT89C51
  • LCD

Download School Bag Security Project

This project was developed with an 8051 Microcontroller.

Zigbee Based College Bus Data Monitoring System

The college-bus database monitoring and controlling system in the college need to be continuously monitored by the computer. These monitoring system include bus transition monitoring system, where continuous monitoring and parameter checking required.

Most of the current monitoring and controlling system having human interfaces and some difficult task like maintaining such data with accuracy. It is impossible for the college bus-worker and management staff to continuously work only for such task. So to solve this problem, we can provide wireless network link like ZigBee.

The characteristics of ZigBee like low power, low cost, range up to 100 meter and network forming ability make ZigBee technology an ideal choice for wireless monitoring and controlling network in this system.

In our proposed College-Bus Data Monitoring system we are using ZigBee module, p89c51rd2 microcontroller system and one pc interfaced with it, who monitor continuously. This module  send the unique code for each bus at the time of entering or exiting college campus to the ZigBee enabled p89c51rd2 microcontroller system interfaced with computer.

In computer by using data logger software we are storing that updated data in database with time & date. so like this we will have all bus transition data automatically with accuracy without maintaining any hand written database.

Bomb Detection Robot Project

The design scheme of this robot is based on the recognition metal based on the principle of mutual inductance. This is verified by on-board reference comparison. The metal detection circuit is mounted on a robot which is controlled by RF.

This Bomb Detection Robot project is developed on embedded platform, whose software platform use the firmware written in embedded C. The metal detection circuit contains a coil which when placed over a metal, changes the response of the system and inturn the system signals the remote node about the detection and rings a buzzer on the robot.

The whole Bomb Detection Robot project is implemented on 8051 based AT89S52 controller and the compiler used is RIDE/KEIL. the remote metal detecton values are displayed on the LCD. The controlling of the robot is enabled with zigbee network.



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


At89s52 based our own developed board
Power Supply
RF transmitter and receiver
DC motors
Motor driver
Metal detector sensor

Hotel Power Management System Using LDR


This is a unique Hotel Power Management System Using LDR project designed to save electrical bills especially in hotel environment.

It normally happens that costumers come to the hotel and while going out from the hotel they often leave the lights and fan ON. Normally the consumers surrender the key to the reception staff while leaving. If the reception staff failed to check the room more amount of power will be wasted.

This Hotel Power Management System project is designed to monitor the movement of the persons in the room with LDR sensor, this sensor will send signal to the controller and the controller checks the light intensity if the light intensity is less in the room, the controller will respond and will turn on the power.

Used Technology:

8051 Microcontroller,
KEIL Compiler,
Power Supply,

Block Diagram

Managing Industrial Automatic Car Parking System

AIM: The main objective of this project is to develop an embedded system, which is used to manage the parking automation system using RFID technology.

IMPLEMENTATION: This Managing Industrial Automatic Car Parking System project is implemented on an 8051 based At89s52 developed board interfaced with RFID and LCD for display purpose.



DESCRIPTION: RFID based systems are going to revolutionize most of the market areas inventory control, supply chain tracking, equipment and personal tracking in hospitals, book tracking in libraries, employ time, attendance and access control, product tracking in product assembly.

Our embedded systems board is going to deal the parking management system for highly trfficable areas like industries, organizations and cinema theatres etc. our present project considers an organization and every car owner is having one RFID card. We will allot that particular car number to that particular owner. While he coming at the office premises and by showing his card to the RFID reader at the parking place will allot the dynamic parking space for that owner. While his leaving also the procedure is same.

The operation of this total process will be appear on the LCD which we connect to our microcontroller. The communication between the RFID andd our microcontroller is established by max232.


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


At89s52 based our own developed board
Power Supply
RFID module

Smart Sensor Interface for Industrial WSN in IoT

Existing Work:

In the existing work, the developed system was not efficient in the view of task scheduling, as the system was used was a non Linux device and also external Ethernet was used for the communication purpose.

Proposed Work:

On a Raspberry Pi (Single-Board Computer) board of ARM 11 architecture will be ported with an Embedded Linux operating system and using Ethernet protocol for IOT applications, we will acquire the data from the Wireless Sensor Network (WSN), post the data over the web such that it can be viewed over internet on any browser as well also in advancement will operate the appliance from the web.

Hardware: Raspberry pi Board (ARM 11), Ethernet Router, Zigbee Modules, 8051 Controller Boards, Temperature Sensor, Humidity Sensor, Light, Fan.

Software: Embedded Linux OS, Ethernet Protocol, Qtopia GUI

Applications: Industry, Airports

Advantages: Low Cost, Easy to Install and operate

Accurate Electricity Monitoring of the Household Appliances

Aim: The main aim of this project is “To reduce the interference and to get the accurate electricity monitoring of the household appliances”.

EXISTING SYSTEM: In the existing method electricity can be monitored by using the parameters like voltage and current these 2 Parameters can be sensed by using the voltage and current sensors. but the controlling of the devices in the house is not possible in the existing system. to overcome this disadvantages we are going for proposed method.

PROPOSED SYSTEM: The A Power Sensor Tag with Interference Reduction for Electricity Monitoring Of Two-Wire Household Appliances project consists of voltage sensor and current sensor and loads. The house hold appliances like bulbs consume power.

The parameters current and voltage can be sensed by using the 2 sensors. And the values are posted onto the GPRS. According to these values we can calculate the demand response. The interference of the wire is also calculated. if the values of the voltage and current are exceeding the threshold condition then the load can be tripped off.

This current and voltage sensors coming in energy meter. We will place energy meter instead of current and voltage sensors.



  • Microcontroller
  • GPRS
  • Power supply
  • Relay
  • LCD
  • Bulbs


  • Flash magic
  • Embedded C
  • Express PCB

Speech Recognition Controlled Intelligent Robot


Aim: aim of this Speech Recognition Controlled Intelligent Robot project is moving a robot by giving specific voice to the module.

Description :

This Speech Recognition Controlled Intelligent Robot paper proposes a robot motion authored using speech recognition module. The proposed method is a user friendly method that easily authors  robot motion according to the user voice.

Robot is only possible to move when  the recorded voice is again repeated. we can give voice for robot like ‘Run’, ‘Stop’, ‘Left’, and ’Right’.


Hardware : AT89s52
Robot plaform
Speech recognition module

SOFTWARE : Embedded ‘C’
TOOLS : RIDE to write code, ISP to burn the chip.
TARGET DEVICE : At89s52 based our own developed board.
ADVANTAGES : Low cost, automated operation, Low Power consumption.

Stride Time Estimation Real Time Peak Detection Implemented On an 8 Bit Micro Controller

The aim of the project is to design “Stride Time Estimation Real Time Peak Detection Implemented On an 8 Bit Micro Controller”.


Micro Controller (8051), Ultrasonic Sensor, A/D Converter, 16X2 LCD.


Real time peak detection can be implemented by using ultrasonic sensor. Ultrasonic Sensors also known as Transceiver which is work on a principle similar to radar.

Ultrasonic sensors generate high frequency sound waves and evaluate the echo which is received back by the sensor. Sensors calculate the time interval between sending the signal and receiving the echo to determine the distance to an object.

Ultrasonic sensors can be used for measuring height of the objects like buildings, vehicles etc. To measure the height of the object, the sensor measures the distance to the surface of the object.

Our Embedded project is to design and develop a low cost feature which is based on embedded platform for finding the height of the objects by using ultrasonic sensor.

Our embedded project uses ultrasonic sensor which is connected to micro controller through A/D converter. The controller process the information and given to LCD unit. The results can be monitored on 16X2 LCD.

Here we are using 8051 micro Controller to implement this project.


  • SOFTWARE: Embedded ‘C’
    TOOLS: Keil, Flash Magic


APPLICATIONS: Used to measure height of the objects.

ADVANTAGES: Low cost, easy to implement, automated operation, and Low Power consumption.

Automatic Switching Of Induction Motor

Automatic Switching Of Induction Motor Abstract:

INTRODUCTION:  Now-a-days, water crisis in India has been reached to alarm proportions and its wastage during transmission is identified as the major cause responsible for the problem. So in order to resolve the issue to some extent we have come up with Automatic switching of induction motor in houses, this project which is a simple model used to conserve water as well as electricity, and can be implemented in the real time work.


 Power supply

Over head Tank

Motor pumps the water into the overhead

Tank when switch gets on by microcontroller.

Water level indicating circuit


Motor switch

Micro controller (8051)


Power supply

Water level indicating circuit

Sump or Reserve  Tank

Power supply

Automatic Switching Of Induction MotorEXISTENCE:

The basic idea for the project is water level indicating circuit. The water level indicator is operated with the help of IC 555 timer. The IC 555 timer is provided with inputs as soon as the level of the water in the sump or reserve tank reaches to a predetermined level. As soon as the water touches the predetermined level, the water level indicating circuit indicates its users by alerting through a beep sound.


The above existed idea of water level indicator circuit is used twice to indicate the levels in the sump as well as the overhead tank and the output of the two water level indicators are given as the input signals to microcontroller. The Microcontroller is programmed in such a way that if water level is above the minimum water level in lower tank, water gets pumped to upper tank and as soon as the upper tank gets filled, motor switches off automatically.


  1. Two water level indicators Software required:
  2. An overhead and underground tank Keil C Software.
  3. 8051 Microcontroller
  4. Power supply


  1. Constant and reliable water supply.
  2. Functions with minimal or no human interface.
    3. Easy maintenance; install and forget for years.
  3. Low cost and it is absolutely affordable by all.
  4. Prevents dry running of motor and so water, energy, power not get wasted.


  1. Monitoring and controlling of water level in reservoirs, dams are important in applications related to agriculture, flood prevention etc.
  2. Domestic, industrial, medical fields etc.


The main objective of the project is to automate process of water pumping in a tank, ability to detect the level of water in a tank, switch on/off the pump. Hence from our proposal of “Automatic switching of induction motor,” water wastage gets controlled by constant and reliable water supply.