Users can view the live feed of the robot and control its movement remotely via a web-based interface. If an obstacle is detected, the robot halts automatically to prevent collisions, ensuring safe movement in its environment.

Before measuring health parameters, the robot displays a message: “PLACE THE FINGER” on its screen. Only after the patient places their finger on the sensor, the robot begins reading the heart rate, SpO2 levels, and temperature. The measured data is then displayed on the LCD and uploaded to the web browser for remote monitoring by doctors and caregivers.

The system is powered by a 12.2Ah battery, regulated through an LM2596 module, and employs a DC motor driver for controlled movement. A display module provides real-time feedback, while an LED indicator signals critical alerts. This project enhances remote patient monitoring and autonomous navigation, reducing the need for physical consultations while ensuring a safer and more efficient healthcare solution.

Objectives of the project:

• Live Streaming & Remote Control – Enable users to view live video from the robot and control its movement via a web-based interface.
• Health Monitoring – Measure heart rate, SpO2, and temperature using sensors and display the data on an LCD screen and web browser.
• User Interaction – Display a message “PLACE THE FINGER” before starting health measurements to guide the patient.
• Automatic Obstacle Detection – Stop the robot automatically if an obstacle is detected to ensure safe navigation.
• Data Transmission – Upload health data to a webpage for remote monitoring by doctors and caregivers.
• Power Management – Use a 12.2Ah battery with LM2596 to ensure stable power supply for all components.

The major building blocks of the project are:

• Battery power supply
• LM2596.
• ESP32 camera module.
• MAX30100SENSOR (heartbeat and spo2).
• Temperature Sensor.
• DC motors with L293d.
• Arduino nano.
• Ultrasonic sensor.
• LCD display.
• LED indications.

Software’s used:

• Embedded C programming.
• Arduino IDE programmer for dumping code into Micro controller.
• Express SCH for Circuit design.
• IOT technology.

video:

This project consists of ESP 32 cam in which the board is powered by an ESP32-S SoC from Espressif, a powerful, programmable MCU with out-of-the-box WIFI and Bluetooth. It’s the cheapest (around $7) ESP32 dev board that offers an onboard camera module, MicroSD card support, and 4MB PSRAM at the same time.

We use Encryption and basic cipher algorithm. We use AES algorithm with key encryption and also basic cipher algorithm. Whenever we send data command from our mobile’s HTML page, that will be sent to the GPIO pins of ESP32. Data encryption is done primarily using Base64 algorithm and then with AES algorithm cipher logic. This takes place at the transmitter end.

In the receiver section, once the command is received, thereby controlling the GPIO pins of Robot movement from the ESP32 camera to L293D motor driver. Initially we need to do decryption algorithm and then decoding to GPIO pins to L293D motor driver in order to control robot in 4 directions.

The major features of this project are:

1. Using ESP 32 cam to achieve this task.
2. Using DC motors to moves the robot.
3. Using L293d motor driver to change the direction of robot.

The major building blocks of this project:

• Battery power supply.
• ESP 32 Cam
• DC Motors
• L293D motor driver

Software’s used in the project:

1. Arduino Programming.
2. Arduino IDE Compiler to write the code
3. Express SCH for Circuit design.

Block Diagram:

video: