The system utilizes optical sensing technology through the MAX30102 sensor to estimate physiological parameters such as blood glucose trends, SpO₂ levels, and heart rate without penetrating the skin. A DS18B20 temperature sensor is incorporated to measure body temperature, enhancing the reliability of health assessment. The collected data is processed using an Arduino Nano microcontroller, which serves as the central control unit.

For user interaction and real-time feedback, an OLED display is used to show measured parameters instantly. The device is powered by a rechargeable Li-ion battery. Additionally, a charging module (like TP4056) is incorporated to safely recharge the battery, providing protection against overcharging, over-discharging, and short circuits. The integrated ESP8266 Wi-Fi module enables wireless data transmission to the ThingSpeak cloud platform for remote monitoring and analysis.

This system offers a compact, cost-effective, and user-friendly solution for continuous health tracking, especially beneficial for diabetic patients. By eliminating the need for invasive testing and enabling IoT-based remote monitoring, the proposed device enhances comfort, accessibility, and proactive healthcare management.

Objectives:

• To develop a non-invasive glucometer for painless blood glucose monitoring.

• To measure physiological parameters such as blood glucose trends, SpO₂ levels, and heart rate using the MAX30102 sensor.

• To monitor body temperature using the DS18B20 temperature sensor.

• To process and manage sensor data using an Arduino Nano microcontroller.

• To display real-time health parameters on an OLED screen.

• To enable wireless data transmission through the ESP8266 Wi-Fi module.

• To upload and monitor patient data remotely using the ThingSpeak IoT cloud platform.

• To provide a portable, rechargeable, and user-friendly healthcare monitoring device.

• To improve patient comfort and support continuous health monitoring without invasive finger-prick testing.

The major building blocks of this project are:

• Battery Power supply.
• Arduino NANO.
• Max302(Non invasive Glucose, SPO2, Heartrate) sensor.
• DS18B20 temperature sensor.
• OLED display.
• ESP8266 WI-FI module.

Software’s used:

• ARDUINO IDE.
• Embedded C language.

video:

In this project   GPS receiver is used to track the location of the woman. Whenever emergency switch is pressed, the location of the woman goes to the predefined mobile number through SMS with the help of GSM module.

This tracking system is composed of a GPS receiver, ARDUINO NANO Microcontroller and a GSM Modem. GPS Receiver gets the location information from satellites in the form of latitude and longitude. When the person press the emergency button then pic Microcontroller processes this information and this processed information is sent to the predefine mobile number using GSM modem.

Features:

1. Remote communication using GSM modem from anywhere in world.
2. GPS based location Identification.
3. Sending location in the form of latitude and longitude.
4. To send Emergency message using switch
5. Help alerting system
6. Location alerting system

The major building blocks of this project are:

• Battery Power supply.
• Arduino nano.
• GSM modem.
• GPS Receiver.
• Button.
• LED indicator.

Software’s used:

• ARDUINO IDE.
• Embedded c language.

video:

In this project we develop an advanced battery thermal management system for emerging electric vehicles. In real time; The developed battery thermal management system is a combination of thermoelectric cooling, forced air cooling, and liquid cooling. The liquid coolant has indirect contact with the battery and acts as the medium to remove the heat generated from the battery during operation. Forced air assisted heat removal is performed from the condenser side of the thermoelectric liquid casing.

A battery management system (BMS) is proposed which is used for electronic vehicle that manages a rechargeable battery, such as by protecting the battery from operating outside its safe operating area, monitoring its state using Arduino UNO microcontroller.

The controlling device of the whole system is ARDUINO UNO microcontroller. The integrated modules to the controller are temperature sensor, 3.7V lithium-ion Battery along with voltage sensor, cooling fan, buzzer and LCD Module. Microcontroller will display the voltage values as well as battery ambient temperature value on LCD displays. If the temperature value crosses the set limit, then microcontroller active the buzzer and turn on the cooling fan. To achieve this task microcontroller loaded program written in embedded C language.

The major building blocks of this project are:

• Power supply
• ARDUINO UNO Microcontroller.
• Temperature sensor.
• Voltage sensor.
• Buzzer.
• 7V Lithium-Ion Battery.
• Cooling Fan.
• LCD display.

Software’s used:

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

video: