The rescue rover is built around an Arduino Nano microcontroller, which acts as the central control unit. A LoRa module enables long-distance, low-power wireless communication between the rover and the user. Upon receiving target coordinates, the robot autonomously moves toward the destination using real-time GPS data and a digital compass for navigation. Once the rover reaches the target location, it sends a confirmation message to the user and continuously transmits latitude and longitude values, temperature data, and gas concentration levels to assist in situational assessment.

An ESP32-CAM module is integrated to provide live video streaming, allowing real-time visual monitoring of the disaster area on the user’s mobile device. The rover is driven using DC motors controlled through an L298 motor driver, ensuring reliable movement over rough terrain. In case of Wi-Fi disconnection during operation, the system ensures fail-safe communication by notifying the user through the serial monitor using LoRa, thereby maintaining operational reliability.

The proposed rescue rover enhances disaster response by enabling remote surveillance, environmental monitoring, and autonomous navigation in dangerous zones. This system reduces risks to human rescuers and provides timely, accurate information, making it a cost-effective and efficient solution for disaster management applications.

Features of Rescue Rover Robot:

  The robot can be controlled from a long distance using LoRa communication.

  The user can send GPS coordinates, and the robot will move automatically to that location.

  It shares its current location (latitude and longitude) continuously.

  A camera provides live video streaming to the user’s mobile phone.

  The robot can measure temperature in the disaster area.

  It can detect harmful gases using a gas sensor.

  Once the robot reaches the given location, it sends a confirmation message to the user.

  If the Wi-Fi connection is lost, the robot alerts the user through LoRa/serial monitor.

  DC motors allow the robot to move smoothly on rough surfaces.

  The system is battery powered, making it easy to carry and deploy.

  It helps rescue teams monitor dangerous areas without human presence.

The major building blocks of this project are:

• Rechargeable battery.
• ESP32 Camera.
• TWO Arduino Nano modules.
• DC motor with l298 driver.
• GPS.
• Digital compass.
• Temperature sensor.
• GAS sensor.
• LoRa Modules.
• PC.

Software’s used:

1. Arduino IDE for compiling and dumping code into ESP32 Camera and Arduino NANO.
2. Express SCH for Circuit design.

video:

GPS is a navigation system that provides instantaneous sub-meters accuracy position information for users worldwide. It is based on the multilateration principle where the user on the surface of the earth determines position using range information from multiple satellites. Because of its superior performance and capabilities, GPS is slated to be the primary means of navigation for all sectors.

The controlling device of the whole system is a Microcontroller. The Microcontroller reads the predefined formatted SMS and extracts the GPS coordinates sent by user and moves the Robot in that direction with the help of GPS and Digital compass by avoiding obstacles in its path. To perform this intelligent navigation, the Microcontroller is loaded with an efficient program written using embedded ‘C’ language.

The major features of this project are:

1. Dynamic inputting of GPS coordinates.
2. Usage of GSM technology.
3. Usage of Digital compass technology.

The major building blocks of this project are:

1. Battery Power Supply.
2. Global Positioning System (GPS Receiver).
3. Digital Compass.
4. GSM modem.
5. Obstacle sensor.
6. DC MOTORs with L298 driver.
7. PIC Micro controller.
8. Crystal
9. LED indicators.
10. Reset

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.

Block diagram:

video:

A DC motor driver controls the movement of the robot by managing DC motors, while an LCD display provides real-time feedback to the user via an LCD driver. Ultrasonic sensor is used to detect the obstacles while moving. If the vehicle detects the obstacle, it will stop automatically and activate the Buzzer for alerts. The entire system is powered by a battery power supply, regulated using a LM2596 BUCK converter to ensure stable operation.

This robot is intended for applications requiring autonomous navigation, such as surveillance, exploration, and industrial automation. The combination of GPS-based localization, user-defined input, and intelligent control mechanisms ensures efficient and adaptable movement in various environments.

The major features of this project are:

Autonomous Navigation – Operates independently without human intervention using intelligent control mechanisms.

Arduino UNO Microcontroller-Based Processing – Uses an Arduio UNO microcontroller as the core processing unit for efficient task execution.

GPS Integration – Enables real-time location tracking and navigation.

Digital Compass – Assists in determining orientation for precise movement.

User-Defined Waypoints – Allows users to input destinations using three buttons for predefined navigation.

DC Motor Control – A motor driver efficiently manages DC motors for movement.

LCD Display – Provides real-time status updates and navigation information.

Ultrasonic Sensor-Ultrasonic sensor-based obstacle detection and alerting system.

The major building blocks of this project are:

1. Battery Power Supply.
2. Global Positioning System (GPS Receiver).
3. Digital Compass.
4. Arduino UNO controller.
5. DC motors with Relay.
6. LCD display.
7. Three Buttons.
8. Buzzer.
9. Ultrasonic sensor.

Software’s used:

• Embedded C programming.
• Arduino IDE Studio compiler for dumping code into Micro controller.
• Express SCH for Circuit design.

Block Diagram:

video:

The system consists of two sections: an ambulance unit and a traffic signal control unit. The ambulance section uses an Arduino UNO, LoRa module, Digital Compass HMC5883L, switch button, rechargeable battery, and LCD display. When the emergency button is pressed inside the ambulance, the LoRa module transmits an emergency signal along with the ambulance direction obtained from the digital compass sensor. The traffic control section receives this signal through another LoRa module connected to a PIC microcontroller. Based on the received direction data, the corresponding traffic signal is turned green while the remaining signals remain red, allowing the ambulance to pass without delay. Additionally, to enhance safety and awareness, a buzzer is included in the system. During an emergency trigger event, the buzzer provides an audible alert to notify nearby drivers and pedestrians that an emergency vehicle is approaching, prompting them to give way.  The system provides fast communication, efficient traffic control, and improved emergency response time.

Objectives:

• To design an intelligent traffic signal management system for ambulance clearance.
• To reduce ambulance delay during heavy traffic conditions.
• To provide automatic green signal control for emergency vehicles.
• To use LoRa communication for long-range wireless data transmission.
• To detect ambulance movement direction using Digital Compass HMC5883L.
• To alert traffic control systems during emergency situations.
• To improve emergency response time and patient safety.
• To minimize manual traffic management using automation.
• To provide reliable and efficient traffic monitoring.
• To develop a low-cost and smart transportation solution.

Components used:

• Regulated power supply.
• Arduino UNO controller.
• PIC microcontroller.
• 12 LEDs for four side traffic signals.
• Lora modules.
• Digital compass.
• Buzzer.
• LCD display.
• Four Sides Traffic signals.

Software’s used:

• Arduino IDE for compiling and dumping code into Microcontroller
• Express SCH for Circuit design.

video:

The controlling device of the whole system is a Microcontroller. Microcontroller acts an intermediate between input and output modules and acts accordingly on the output modules from the input received as in the way it is programmed. Here, the Microcontroller get input from digital compass movement (i.e. information given by user by changing direction of compass). The controller checks the information from digital compass and compares with predefined details. This system capable of detecting the obstacle while travelling the blind person and gives the audible alerts through buzzer. This system gives the voice alerts heading towards the direction of the blind person while travelling. The Microcontroller is programmed in Embedded C language.

The main objectives of the project are:

1. Design a voice based Digital compass.
2. It is very use full to the blind persons for navigation.
3. Obstacle detection and alerting system.

This project provides us with the learning’s on the following aspects:

1. Interfacing voice module with Microcontroller.
2. Interfacing HMC8832 module with Microcontroller.
3. Interfacing Ultrasonic Sensor with Microcontroller.
4. Embedded C programming.
5. PCB Design and development

The major building blocks of this project are:

1. Regulated Power Supply.
2. PIC Microcontroller.
3. Digital compass.
4. Voice module.
5. HC-SR04 Ultrasonic Sensor.
6. Buzzer.
7. Reset.
8. Crystal oscillator.
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.

Block Diagram:

video:

GPS is a navigation system that provides instantaneous sub-meters accuracy position information for users worldwide. It is based on the multilateration principle where the user on the surface of the earth determines position using range information from multiple satellites. Because of its superior performance and capabilities, GPS is slated to be the primary means of navigation for all sectors.

The controlling device of the whole system is a Microcontroller. The Microcontroller reads the predefined formatted SMS and extracts the GPS coordinates sent by user and moves the Robot in that direction with the help of GPS and Digital compass. If there is any obstacle in its path, it avoids them and moves accordingly. To perform this intelligent navigation, the Microcontroller is loaded with an efficient program written using embedded ‘C’ language.

1. Dynamic inputting of GPS coordinates.
2. Usage of GSM technology.
3. Usage of Digital compass technology.
4. To avoid the obstacles using SR04 sensors.

This project provides us learning’s on the following advancements:

1. Interfacing of GPS receiver with microcontroller.
2. Interfacing of Digital compass with microcontroller.
3. Interfacing GSM modem to Microcontroller
4. Embedded C programming.
5. PCB design.

The major building blocks of this project are:

1. Regulated Power Supply.
2. Global Positioning System (GPS Receiver).
3. Digital Compass.
4. GSM modem.
5. Ultrasonic sensor.
6. GSM.
7. Micro controller.
8. Crystal oscillator.
9. LED indicators.
10. Reset

Software’s used:

• PIC-C compiler for Embedded C programming.
• Express SCH for Circuit design.

video: