Rotating Planetary Memory Display Using ESP32

3.1 Identifying Client Requirements

Sl. No.	Question	Answer	Objective	Function	Constraint
1	What is the main purpose of the project?	To develop a rotating planetary memory display using ESP32.	✅
2	What does the model do?	It rotates planet models and displays planetary information.		✅
3	Why is rotation useful?	It allows different planets to be viewed from different angles.	✅
4	What is the main moving part?	The rotating platform or turntable.		✅
5	What provides the motion?	A small DC geared motor.		✅
6	What supplies electrical energy?	A suitable battery or power supply.			✅
7	What material can be used for the body?	Lightweight wood, acrylic sheet, or cardboard.			✅
8	Why is a circular platform used?	It allows rotation around its centre.		✅
9	What is the function of the base?	To support the motor, electronics, and rotating platform.		✅
10	What connects the motor to the platform?	A shaft, gear mechanism, or suitable coupling.		✅
11	What is the objective of using a geared motor?	To obtain controlled rotation with sufficient torque.	✅
12	What happens if the platform is unbalanced?	The model may wobble or vibrate.			✅
13	Why should the motor be firmly fixed?	To prevent movement during operation.			✅
14	What is the main electrical constraint?	All components must receive the correct voltage and current.			✅
15	What is the main mechanical constraint?	The platform has a limited load capacity.			✅
16	How can the model be made economical?	By using inexpensive, readily available materials.			✅
17	What should be checked before operation?	Stability, wiring, alignment, and free rotation.			✅
18	What is the expected output?	A working rotating planetary display with digital information.	✅
19	Where can the model be useful?	Science exhibitions, educational demonstrations, and engineering projects.	✅
20	What is the overall design goal?	A simple, stable, low-cost, and functional planetary display.	✅

3.2 Identifying Client's Objectives

Sl. No.	Objectives
1	Low-cost construction
2	Lightweight structure
3	Stable platform rotation
4	Easy to operate
5	Compact and portable design
6	Energy-efficient operation
7	Reliable motor control using ESP32
8	Simple construction and maintenance
9	Display of planetary information
10	Attractive LED illumination

Problem Definition — Version 1.1

Design a simple, stable, lightweight, and economical rotating planetary memory display using ESP32 that rotates planet models and displays relevant planetary information on an OLED screen.

3.3 Identifying Constraints

Sl. No.	Constraints
1	Limited project budget
2	Lightweight but sufficiently strong structure
3	Limited load capacity of the rotating platform
4	Stable rotation without excessive vibration
5	Motor must operate at its specified voltage and current
6	Limited power consumption
7	Compact and portable design
8	Use of easily available materials
9	Proper alignment of the motor, gears, and platform
10	Safe electrical connections
11	ESP32 memory and processing limitations
12	OLED display size limits the amount of information shown
13	LED strip and motor power requirements must be considered
14	Reliable operation during continuous rotation

Problem Definition — Version 1.2

Design a simple, stable, lightweight, and economical rotating planetary memory display using ESP32 that rotates planet models and displays relevant planetary information while maintaining mechanical stability, electrical safety, low power consumption, and reliable operation.

3.4 Establishing the Functions

Sl. No.	Functions
1	Uses electricity as the power source for the ESP32 and other electronic components.
2	Provides rotational motion to the planetary display platform using a DC geared motor.
3	Supports and holds the planet models securely on the platform.
4	Rotates the planetary models to provide different viewing angles.
5	Maintains stable and smooth rotation of the platform.
6	Displays planetary names, facts, and orbital periods on the OLED screen.
7	Controls the motor and display using the ESP32 microcontroller.
8	Illuminates the planetary models using LEDs.
9	Updates the displayed planetary information according to the selected planet.
10	Allows easy selection and viewing of planetary information using input controls, if provided.

Problem Definition — Version 1.3

Design and develop a simple, stable, lightweight, economical, and easy-to-use Rotating Planetary Memory Display using ESP32 that automatically rotates planet models and displays relevant planetary information on an OLED screen. The model should integrate mechanical rotation, electronic control, digital information display, and LED illumination while ensuring safe operation, low power consumption, mechanical stability, and reliable performance.

3.5 Four Main Functions of the Model

1. Planetary Rotation: Rotates the planetary platform using a DC geared motor and mechanical gear arrangement.
2. Memory Information Display: Displays planet names, orbital periods, and interesting facts using an OLED screen controlled by the ESP32.
3. LED Illumination: Illuminates the planetary models to improve visibility and appearance.
4. Automatic Control and Synchronization: Coordinates motor movement and information updates through the ESP32.

3.6 Reference YouTube Links

The following links provide references to different rotating planetary model designs.

1. Meridian Orrery — Rotating Planetary Model:
   https://www.youtube.com/watch?v=yZWWDG4Uw-U

2. Ceiling-Mounted Working Planetarium:
   https://www.youtube.com/watch?v=qekdDGlPMps

3. Other Rotating Planetary Models Using ESP32:
   https://www.youtube.com/results?search_query=ESP32+rotating+planetary+model

Note: These are alternative model references, not exact replicas of the proposed design. Verify that each video is accessible and uses ESP32 before citing it as a direct project reference.

3.7 Conclusion

The Rotating Planetary Memory Display using ESP32 is an educational engineering project that combines mechanical rotation, electronic control, and digital information display. The motor rotates the platform, the ESP32 coordinates the system, the OLED screen presents planetary facts, and LEDs illuminate the model.

The project aims to provide an economical, stable, portable, and interactive way to learn about the solar system.