E&TC / ECE · Robotics and drone · Final year project
IoT Virtual Doctor Robot
A telepresence robot that lets a doctor visit patients remotely. The doctor drives the four-wheel robot over the internet and talks to patients through a mounted phone or tablet.
What is the IoT Virtual Doctor Robot project?
A telepresence robot that lets a doctor visit patients remotely. The doctor drives the four-wheel robot over the internet and talks to patients through a mounted phone or tablet.
Key facts
- Branch
- Electronics & Telecommunication (E&TC / ECE); also suits Mechatronics, Biomedical
- Type
- Final year project · Intermediate
- Suitable for
- Diploma capstone and B.E / B.Tech final year
- Build time
- 4 to 6 weeks
- Estimated component cost
- ₹6,200 – ₹9,100
- Guidance from
- ₹9,999 (Hardware / IoT Final Year)
How the IoT Virtual Doctor Robot works
- Rechargeable battery supplies the circuit; a regulator gives the controller and sensors a steady 5 V.
- The NodeMCU ESP8266 Wi-Fi board connects the system to Wi-Fi so readings can be pushed to an IoT dashboard and commands received from a phone.
- The DC geared motor provides the driving motion.
- The Motor driver lets the low-current controller run the motors forward, reverse and at variable speed.
Block diagram
Controller
NodeMCU ESP8266 Wi-Fi boardOutputs
DC geared motorMotor driverComponents list and cost
Typical prices from Indian online stores and electronics markets (Lamington Road, Budhwar Peth, SP Road). Buy from one store where you can to save on shipping.
| Component | Qty | What it does | Approx. cost |
|---|---|---|---|
| NodeMCU ESP8266 Wi-Fi board | 1 | Connects the system to Wi-Fi so readings can be pushed to an IoT dashboard and commands received from a phone. | ₹280 |
| DC geared motor | 2 | Provides the driving motion. | ₹500 |
| Motor driver (L298N) | 1 | Lets the low-current controller run the motors forward, reverse and at variable speed. | ₹180 |
| Rechargeable battery (12 V 1.3–7 Ah) | 1 | Stores energy and supplies power when mains is absent. | ₹650 |
| Wheels / castor wheels | 4 | Allow the machine or vehicle to move. | ₹1,600 |
| Robot chassis (metal / acrylic) | 1 | Needed for this type of build. | ₹1,100 |
| Li-ion battery pack (18650 × 3, 11.1 V) with BMS | 1 | Needed for this type of build. | ₹1,400 |
| Passive components, PCB and wiring kit | 1 | Resistors (assorted), capacitors (assorted), PCB / breadboard and cables, connectors and jumper wires. | ₹310 |
| Wiring, PCB, soldering and enclosure | 1 | Project overhead | ₹450 |
| Demo model base / mounting board | 1 | Project overhead | ₹500 |
| Testing spares and replacements | 1 | Project overhead | ₹300 |
| Estimated total | Varies with brand, quality and city | ₹6,200 – ₹9,100 |
Prices are estimates for budgeting. We confirm the bill of materials when your design is frozen, and components are charged at actual cost with bills.
How much does this project cost?
| Option | What you get | Cost |
|---|---|---|
| Components only | You buy the parts and build it yourself | ₹6,200 – ₹9,100 |
| Hardware / IoT Final Year | Working model or guided build, Circuit diagram and bill of materials, Firmware / code with explanation | from ₹9,999 + components |
| Capstone Project (CPE) | Working project or model, Black book in MSBTE format, Step-by-step explanation | ₹9,999 + components |
| Diploma ITR | 100% working source code, Project report PDF, PPT | ₹1,999 + components |
No GST and no hidden charges. Use the cost calculator for a quote with your deadline and add-ons, or see all plans.
Download the project brief (PDF)
Summary, working, components and cost and viva questions on one branded PDF to show your guide or team. To get it developed, contact us on WhatsApp.
What you submit with this project
- Working model with circuit diagram and program code
- Project report or black book in your university's chapter order (block diagram, circuit, calculations, results)
- Presentation for the review and final viva
- Synopsis for topic approval, if your college asks for one
E&TC / ECE viva questions on this project
What is the aim of the IoT Virtual Doctor Robot project?
A telepresence robot that lets a doctor visit patients remotely. The doctor drives the four-wheel robot over the internet and talks to patients through a mounted phone or tablet.
Explain the working of your project in short.
Rechargeable battery supplies the circuit; a regulator gives the controller and sensors a steady 5 V. The NodeMCU ESP8266 Wi-Fi board connects the system to Wi-Fi so readings can be pushed to an IoT dashboard and commands received from a phone. The DC geared motor provides the driving motion. The Motor driver lets the low-current controller run the motors forward, reverse and at variable speed.
What is NodeMCU and how does it connect to the internet?
NodeMCU is a development board built on the ESP8266 Wi-Fi chip. It joins a Wi-Fi network using the SSID and password in the code and sends data over HTTP or MQTT to a cloud server.
Why is a geared motor used?
The gearbox reduces speed and multiplies torque, so a small DC motor can move a vehicle or mechanism smoothly. Torque increases roughly by the gear ratio.
Why can't the motor be connected directly to the microcontroller?
A motor needs far more current (hundreds of mA to amps) than a controller pin can supply (about 20–40 mA). The H-bridge driver switches the motor current and allows direction control.
How do you calculate battery backup time?
Backup time (hours) ≈ battery capacity (Ah) × voltage × 0.8 efficiency ÷ load power (W). For example, 12 V 7 Ah at 20 W gives about 3.3 hours.
How is the wheel size selected?
From the required speed and torque: linear speed = π × D × rpm ÷ 60. A larger wheel gives more speed but needs more torque.
Explain the block diagram of your project.
The input section senses the real-world quantity, the NodeMCU ESP8266 Wi-Fi board processes it according to the program, and the output section acts locally and sends the data or alert wirelessly. The power supply section feeds every block.
Which communication protocols are used between the modules?
UART (serial) for the GSM, GPS, Bluetooth or fingerprint modules. Each protocol was chosen because the module supports it and it uses the fewest pins.
What is the operating voltage of the circuit?
The controller and most sensors work at 5 V (ESP boards and some modules at 3.3 V). The battery powers the board, and a regulator steps it down. Motors and relays get their own supply line so they do not reset the controller.
Is your system open-loop or closed-loop?
Mainly open-loop: the controller runs the actuators for a set time or number of steps. Adding a sensor for feedback would make it closed-loop and more accurate.
How do you ensure patient safety?
The device runs on low-voltage batteries, has no direct mains connection to the patient, uses isolated sensors and limits current through any electrode. Alarms are set for abnormal readings.
Related projects
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Want to build IoT Virtual Doctor Robot?
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