A spherical display with Bluetooth control through a custom-made app.
Demonstration Video: https://youtu.be/LuZrvqpimK4
How it works: This display uses the persistence of vision phenomenon where a moving point light source presists in our vision and is precieved to be a continuos light source. In this project, a strip of 46 LEDS are attached onto a 3D printed circle which is spun around to form a sphere. The strip of LEDs is controlled by an Arduino Nano which continuously writes the correct color onto each LED to form an image.
Potential Use Case: This device showcases images which can be used for advertisement and entertainment purposes. Since a technology in this form is not yet well-known and adapted in the real world, it is quite an eye catcher. This means companies can easily gain people's curiosity by advertising their products on this display.
Features:
- Bluetooth Control through app
- Display any color
- Display images (41x23 resolution)
- Display text
- Display Animations
- Control color by orienting phone
Components List:
- Arduino Nano
- HM-10 Bluetooth Module
- WS2812B Individually Addressable RGB LED Strip (144 LEDs/m)
- A3144 Hall Effect Sensor
- Magnet
- 4 x Rechargable AA Batteries (1.25V cells)
- DC Motor
- 470 uF Capacitor
- Resistors
Attached Files:
- 3D Model: A 3D model of the globe structure made in SketchUp.
- Images: Images of the hardware, globe, android app, and windows application.
- POV_Globe_Program: The Arduino code which drives the Globe Display.
- Globe_BT_Controller: The android app apk which controls the Globe Display wirelessly through Bluetooth (Optimized for Samsung Galaxy Note 8).
For Image Conversion Software Visit: https://github.com/Zia-F/Image-Converter-for-POV-Globe.git