This project proposes a smart BMS for electric vehicles using an Arduino UNO microcontroller to monitor key battery parameters such as voltage, current, and temperature. The system integrates multiple sensors along with safety features like fire detection and accident detection using a MEMS sensor. In case of an accident, the GPS and GSM modules are used to track the vehicle location and send alert messages to predefined contacts.

Additionally, the system enables real-time monitoring by displaying parameters on an LCD and uploading data (voltage, current, temperature, location, and time) to the ThingSpeak cloud via an ESP8266 Wi-Fi module. An ultrasonic sensor is used for obstacle detection, and alerts are provided through a buzzer and display.

Overall, the proposed system ensures safe battery operation, real-time monitoring, and enhanced vehicle safety through IoT and embedded technologies, making it suitable for advanced electric vehicle applications.

The main objectives of this project are:

• To design a smart IoT-based system for automatic vehicle accident detection.
• To develop a rescue alert mechanism that sends location and emergency messages using GPS and GSM.
• To implement a Battery Management System (BMS) for monitoring EV battery parameters like voltage, current, and temperature.
• To ensure safe battery operation by preventing overcharging, overheating, and overcurrent conditions.
• To integrate real-time data monitoring using IoT (ESP8266 with ThingSpeak).
• To design a charger monitoring system for efficient battery charging control.
• To display system parameters and alerts using an LCD and buzzer.
• To detect vehicle accidents using MEMS sensor and trigger immediate response.
• To enhance vehicle safety with additional sensors like fire and obstacle detection.
• To develop a low-cost, reliable, and user-friendly system for smart electric vehicles.

The major building blocks of this project are:

• Li-ION Battery.
• LM2596.
• ARDUINO UNO Microcontroller.
• Temperature sensor.
• Voltage sensor.
• Current sensor.
• Charging Circuit.
• LCD display.
• MEMS sensor.
• Fire sensor.
• Ultrasonic sensor.
• Buzzer.
• GSM.
• GPS.
• ESP8266 WI-FI module.
• DC motor (vehicle).

Software’s used:

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

video:

This project makes a use of Arduino uno microcontroller, main controlling device of the project.Fire sensor is used to detect the flame.This system consists of GSM technology for sending the alert SMS and activate the buzzer if the system detects fire.The status of the project will display on LCD module.

This project makes use of an onboard computer, which is commonly termed as micro controller. It acts as heart of the project. This onboard computer can efficiently communicate with the output and input modules which are being used. The controller is provided with some internal memory to hold the code. This memory is used to dump some set of assembly instructions into the controller. And the functioning of the controller is dependent on these assembly instructions.

The main building blocks of the project are:

• Power Supply.
• ARDUINO UNO Microcontroller.
• Fire sensor.
• GSM
• Buzzer
• LCD display.

Software’s used:

• Arduino IDE for Embedded C programming.
• Express SCH for Circuit design.

Regulated power supply:

Block diagram:

video: