RF Communication ranges in between 30 KHz to 300 GHz. RF communication works by creating electromagnetic waves at a source and being able to pick up those electromagnetic waves at a particular destination. These electromagnetic waves travel through the air at near the speed of light. The wavelength of an electromagnetic signal is inversely proportional to the frequency; the higher the frequency, the shorter the wavelength.

The controlling device of the whole system is a microcontroller. The bus system has a switch and RF transmitter with an encoder. The switch helps in showing the same system as many numbers of buses in the prototype. The Encoder along with RF transmitter is used to transmit unique data for each position of switch. The transmitted data is received at bus station by RF receiver and this is fed to Microcontroller. The microcontroller takes decision of announcing and displaying particular predefined information according to data it received.  To achieve this task, the microcontroller is loaded with intelligent program written using embedded ‘C’ language.

The objectives of the project include:

1. Pre-announcement of arriving bus information.
2. Pre-displaying of arriving bus information.
3. Usage of wireless RF technology.

The major building blocks of this project are:

1. Regulated Power Supply
2. RF Transmitter
3. RF Receiver.
4. Encoder and Decoder
5. Switch.
6. Reset.
7. LCD display with driver.
8. Micro Controller
9. LED indicators
10. Voice circuit.

Software’s used:

• PIC-C compiler for Embedded C programming.
• PIC kit 2 programmer for dumping code into Micro controller.
• Express SCH for Circuit design.

Regulated Power Supply:

Block Diagram:

video:

If the heart rate or body temperature rises above or falls below the preset safe limits, the microcontroller activates a buzzer to provide an immediate alert. This enables timely medical attention during emergency situations.

The system is simple, portable, reliable, and cost-effective, making it suitable for home healthcare, hospitals, and clinics for continuous health monitoring.

The main objective of this project is:

• To continuously monitor the patient’s heart rate and body temperature and display the readings on an LCD.
• To provide an immediate buzzer alert when the heart rate or body temperature exceeds or falls below the preset safe limits.

The major building blocks of this project are:

1. Regulated power supply.
2. PIC Micro controller.
3. Heart beat sensor.
4. Temperature sensor.
5. LCD with driver.
6. Reset Button.
7. Buzzer with driver
8. Crystal
9. LED indicators.

Software’s used:

1. PIC-C compiler for Embedded C programming.
2. PIC kit 2 programmer for dumping code into Micro controller.
3. Express SCH for Circuit design.

Regulated Power Supply:

Block Diagram:

video:

When motion is detected, the microcontroller activates a buzzer through a buzzer driver to provide an instant local alarm. At the same time, it communicates with a GSM modem to send an SMS alert and make a phone call to the registered mobile number, informing the owner about the possible intrusion. This enables quick action even when the user is away from home.

The system is powered by a regulated power supply and offers a simple, reliable, and cost-effective solution for residential security. By combining motion detection, local alarm, and remote GSM-based notification, the project enhances home safety and provides real-time alerts, making it suitable for houses, offices, shops, and other secured areas.

The main objectives of the project are:

  To detect unauthorized human movement using a PIR sensor.

  To alert nearby people by activating a buzzer when motion is detected.

  To send an SMS and make a phone call to the registered mobile number using a GSM modem.

  To provide a simple, reliable, and low-cost home security system.

  To enhance the safety and security of homes, offices, and shops through real-time intrusion alerts.

The Major building blocks of this project are:

1. Regulated Power Supply
2. Microcontroller
3. GSM Modem.
4. PIR Sensor.
5. Buzzer with driver

Software’s used:

1. Embedded C programming.
2. Arduino IDE dumping code into Micro controller.
3. Express SCH for Circuit design.

Regulated power supply:

Block Diagram:

video:

In Manual Mode, the user controls the street light directly from the Android mobile application using Bluetooth. The user can turn the street light ON or OFF at any time and select the operating mode without physically accessing the lighting system. This mode is useful for maintenance, testing, and special situations where manual control is required.

In Automatic Mode, an LDR (Light Dependent Resistor) continuously senses the ambient light intensity. During daytime, the controller automatically switches the street light OFF to save energy, while at night it turns the light ON without human intervention. The mode selection between Manual and Automatic is performed through the Android mobile application, making the system user-friendly, energy-efficient, and suitable for modern smart street lighting applications.

The main objectives of the project are:

1. Controlling of street lights through mobile phone.
2. Intelligent switching of street lights based on LDR.

The main building blocks of the project are:

1. Regulated Power Supply.
2. PIC Microcontroller.
3. Bluetooth.
4. LDR
5. High power LED street light
6. Reset.
7. Crystal oscillator.
8. LED indicators.

Software’s used:

1. PIC-C compiler for Embedded C programming.
2. PIC kit 2 programmer for dumping code into Micro controller.
3.  Express SCH for Circuit design.

Regulated Power Supply:

Block Diagram:

video:

GPS is the acronym for Global Positioning System. It is employed to find the position where the user is located on the earth. This information is provided by the GPS with the help of the data it receives from the satellites.

The main controlling device of the whole system is a microcontroller. GPS receiver and LCD display are interfaced to it. The GPS receiver continuously feds the vehicle location coordinates and speed of the vehicle data it receives from the satellites to the Microcontroller. The Microcontroller processes the data and displays the data on the LCD screen. To perform the task, Microcontroller is loaded with an intelligent program written in embedded ‘C’ language.

The major features of this project are:

1. Displaying the location coordinates of the vehicle.
2. Displaying speed of the vehicle.

The major building blocks of this project are:

1. Microcontroller.
2. Regulated Power Supply
3. GPS receiver.
4. LED Indicators.
5. LCD Display with driver.

Software’s used:

1. Embedded C programming.
2. Arduino IDE dumping code into Micro controller.
3. Express SCH for Circuit design.

Regulated Power Supply:

Block Diagram:

video:

The controlling device of the whole system is a Microcontroller. Different sensors like temperature, pressure, door status, humidity are interfaced to Microcontroller. The Microcontroller is programmed to monitor the parameters continuously and alert if any of the parameter is out of range to the given parameter value. The parameter threshold level can be dynamically varied. The alerting is done through a buzzer. Continuous display of the parameters on LCD is available.  To perform this intelligent task, the Microcontrollers are loaded with intelligent programs written using embedded ‘C’ language.

The main objectives of the project are:

1. Designing of air craft cabin parameters monitoring and alerting system.
2. Dynamic parameter threshold level setting provision.
3. Alerting, in case abnormal parameter values.

The major building blocks of the project are:

1. Regulated Power Supply.
2. PIC Microcontroller.
3. Temperature sensor.
4. Humidity sensor.
5. Pressure sensor.
6. LCD with driver.
7. Buzzer with driver.
8. Parameter Threshold setter.
9. Door status sensor.
10. Crystal
11. LED indicators.

Software’s used:

1. PIC-C compiler for Embedded C programming.
2. PIC kit 2 programmer for dumping code into Micro controller.
3. Express SCH for Circuit design.

Regulated Power Supply:

Block Diagram:

video:

India is world’s largest democracy. It is perceived to be charismatic one as it accommodates cultural, regional, economical, social disparities and still is able to stand on its own. Fundamental right to vote or simply voting in elections forms the basis of India democracy. In India all earlier elections be it state elections or centre elections a voter used to cast his/her vote to his/her favorite candidate by putting the stamp against his/her name and then folding the ballot paper as per a prescribed method before putting it in the Ballot box. This is a long, time-consuming process and very much prone to errors. This situation continued till election scene was completely changed by Electronic Voting Machine (EVM). No more ballot paper, ballot boxes, stamping, etc. all this condensed into a simple box called ballot unit of the Electronic Voting Machine (EVM).

This project consists of 3 unit’s viz. Control unit, Election officer system and a Voting system. The voter polls his vote in the voting system by simply pressing button against his favorite leader which is indicated through the LCD display. Also, the voter need to confirm once again by pressing the confirmation button available in the system, also indicated through LCD and Buzzer. Once confirmation button is pressed, voter cannot change his vote. The voter confirmation is passed to election officer’s system, where election officer need to confirm it by pressing the button available in his system and he gets the confirmation of vote polled from the control unit through an LED indicator. The control unit consists of a Microcontroller, start button, stop button, reset and result for different operations of EVM. The votes casted for particular candidate in that particular section of constituency is shown through an LCD display. To perform this intelligent task, Microcontroller is loaded with an intelligent program written in embedded ‘C’ language.

The main objectives of this project are:

1. Tamper free Electronic Voting Machine (EVM).
2. Easy to cast the vote.

The major building blocks of this project are:

1. Regulated Power Supply.
2. PIC Microcontroller.
3. Push buttons.
4. LCD display unit.
5. Buzzer.
6. Crystal
7. Reset.
8. LED Indicators.

Software’s used:

• PIC-C compiler for Embedded C programming.
• PIC kit 2 programmer for dumping code into Micro controller.
• Express SCH for Circuit design.

Regulated Power Supply:

Block Diagram:

video:

This project Features are:

  Alcohol Detection – Detects alcohol near the driver using an MQ-series alcohol sensor.

  Automatic Vehicle Control – Automatically stops the DC motor when alcohol is detected above the preset limit.

  Wireless RF Communication – Uses RF transmitter and receiver modules for reliable wireless data transfer.

  Accident Prevention – Prevents drunk driving, reducing the risk of road accidents.

  Microcontroller-Based Operation – Provides fast, accurate, and reliable system control.

  Low-Cost and Easy to Implement – Simple design suitable for vehicle safety and educational embedded system projects.

The major building blocks of this project are:

1. Regulated power supply.
2. PIC microcontroller
3. Reset button
4. Crystal Oscillator
5. RF transmitter and RF receiver modules
6. Encoder and Decoder.
7. DC Motors.
8. Motor driver

Software’s used:

• PIC-C compiler for Embedded C programming.
• PIC kit 2 programmer for dumping code into Micro controller.
• Express SCH for Circuit design.

Regulated power supply:

Block Diagram:

video:

Automation is the most frequently spelled term in the field of electronics. The hunger for automation brought many revolutions in the existing technologies. One among the technologies which had greater developments is RF communications. The result of this is the RFID cards which transmit a unique identification number. This number transmitted by the RFID can be read with the help of a RF reader.

The system consists of RFID reader, microcontroller, LCD, voice module. The RFID reader detects the RFID tag which is placed to the bus and this input is fed to the microcontroller. The Microcontroller announces the predefined bus names through voice module, according to the tag number it receives from RF reader. Also, along with the announcement, Microcontroller displays the bus name on the LCD. To perform this task, Microcontroller is loaded with an intelligent program written in embedded ‘C’ language.

This system helps the illiterates to easily identify the bus they should board to reach their destination.

The main objectives of the project are:

1. Automatic announcement of name of the bus.
2. Display of bus name on the LCD screen.
3. Usage of RFID technology.

The major building blocks of the project are:

1. Regulated Power Supply.
2. PIC Microcontroller.
3. RFID tag.
4. RFID Reader.
5. Voice module.
6. Crystal Oscillator.
7. Reset.
8. LED indicators.
9. LCD with driver.

Software’s used:

1. PIC-C compiler for Embedded C programming.
2. PIC kit 2 programmer for dumping code into Micro controller.
3. Express SCH for Circuit design.

Block Diagram:

video:

Features of the project:

• Automatic Motion Detection – Uses a PIR sensor to detect human movement and automatically switch ON the security light.
• Automatic Light Control – Turns the light OFF automatically after no motion is detected for a preset time, saving energy.
• Energy Efficient Operation – Reduces unnecessary electricity consumption by operating the light only when required.
• Enhanced Security – Provides instant illumination when movement is detected, improving safety and security.

The major building blocks of this project are:

1. Regulated power supply with voltage regulator.
2. PIC Micro controller.
3. Passive Infra Red Sensor (PIR).
4. Relay.
5. Bulb.
6. Crystal oscillator.
7. Reset Button.
8. LED indicator.

Software’s used:

1. PIC-C compiler for Embedded C programming.
2. PIC kit 2 programmer for dumping code into Micro controller.
3. Express SCH for Circuit design.

Regulated power supply:

Block Diagrm:

video: