E&TC / ECE · Embedded and digital electronics · Final year project
3D Holographic Display System With Gesture Controller
A pyramid-style holographic display that makes 3D images appear to float in space. A Raspberry Pi drives a screen beneath a clear reflective pyramid, and a gesture sensor lets the viewer rotate or change the image by waving a hand, useful for exhibitions and product displays.
What is the 3D Holographic Display System With Gesture Controller project?
A pyramid-style holographic display that makes 3D images appear to float in space. A Raspberry Pi drives a screen beneath a clear reflective pyramid, and a gesture sensor lets the viewer rotate or change the image by waving a hand, useful for exhibitions and product displays.
Key facts
- 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
- ₹12,700 – ₹18,700
- Guidance from
- ₹9,999 (Hardware / IoT Final Year)
How the 3D Holographic Display System With Gesture Controller works
- 12 V power adapter / step-down transformer supplies the circuit; a regulator gives the controller and sensors a steady 5 V.
- The Gesture sensor recognises hand swipes without touch.
- The Raspberry Pi 4 runs Linux and the main program, handles the camera, networking and heavier processing such as image recognition.
Block diagram
Inputs
Gesture sensorController
Raspberry Pi 4Components 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 |
|---|---|---|---|
| Raspberry Pi 4 (2 GB) | 1 | Runs Linux and the main program, handles the camera, networking and heavier processing such as image recognition. | ₹4,800 |
| Gesture sensor (APDS-9960) | 1 | Recognises hand swipes without touch. | ₹400 |
| 12 V power adapter / step-down transformer | 1 | Supplies stable low-voltage power from the mains. | ₹250 |
| Mild steel frame and fabrication | 3 | Forms the main structure that holds all parts. | ₹7,500 |
| Mini Display Screen | 1 | Part from the design specification | ₹150* |
| Passive components, PCB and wiring kit | 1 | Cables, connectors and jumper wires, enclosure, mounts and fasteners, resistors (assorted), capacitors (assorted) and PCB / breadboard. | ₹610 |
| 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 | ₹12,700 – ₹18,700 |
Prices are estimates for budgeting; items marked * depend on the exact size or model chosen. 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 | ₹12,700 – ₹18,700 |
| 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 3D Holographic Display System With Gesture Controller project?
A pyramid-style holographic display that makes 3D images appear to float in space. A Raspberry Pi drives a screen beneath a clear reflective pyramid, and a gesture sensor lets the viewer rotate or change the image by waving a hand, useful for exhibitions and product displays.
Explain the working of your project in short.
12 V power adapter / step-down transformer supplies the circuit; a regulator gives the controller and sensors a steady 5 V. The Gesture sensor recognises hand swipes without touch. The Raspberry Pi 4 runs Linux and the main program, handles the camera, networking and heavier processing such as image recognition.
Why did you choose a Raspberry Pi instead of an Arduino?
The Raspberry Pi is a full computer with an operating system, so it can run Python, OpenCV and a web server. An Arduino is a microcontroller that is better for simple real-time control but cannot process images or run multiple programs.
How is a hand gesture detected?
An IR LED and four directional photodiodes measure reflected light. The order in which the photodiodes see the reflection gives the swipe direction.
How is 230 V AC converted to 5 V DC for the circuit?
A transformer steps down the voltage, a bridge rectifier converts AC to pulsating DC, a capacitor smooths it and a 7805 regulator gives a steady 5 V.
Why is mild steel used for the frame?
It is cheap, strong, easy to cut and weld and widely available. A frame of 25 mm square pipe is enough for most student models.
Explain the block diagram of your project.
The input section senses the real-world quantity, the Raspberry Pi 4 processes it according to the program, and the output section displays the result and drives the actuators. The power supply section feeds every block.
Which communication protocols are used between the modules?
The sensors give digital or analog signals read directly by the controller's I/O and ADC pins, and outputs are driven through transistor or relay drivers.
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). A 12 V adapter powers the board, and a regulator steps it down. Motors and relays get their own supply line so they do not reset the controller.
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Want to build 3D Holographic Display System With Gesture Controller?
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