POV FidgetSpinner

Fidget spinner built from scratch that makes use of the concept of "Persistence of Vision" to produce Cool patterns using LEDs

PREREQUISITES:

• Basic knowledge in Arduino
• Arduino board
• Soldering Iron and experience using it
• Breadboard ,jumper wires

COMPONENTS REQUIRED:

Links given are the ones I used to purchase

From local Vendors:

• Resistors (preferably 330 ohms)
• LEDs(3mm)
• Switch
• Pushbutton
• Capacitor (0.1uF)
• CR2032 Battery

Buy Online:

• Attiny84 (Tanotis)
• Bearing (Flipkart)
• Through hole CR2032 Battery holder(Very rare so I had to tie a hard wire around to hold the battery in place) (Tanotis-SMD battery holder)
• Custom PCB board (Order from PCB Manufacturer)

Manually:

• Plastic cap(To attach to the bearing to act as holder - This needs creativity)

Optional: (If interested in implementing TEXTS,SHAPES)

I was not able to implement TEXTS,SHAPES and can't debug due to time constraints (Refer this for code and implementation:Instructables)

• Hall effect sensor (Flipkart)
• Neodymium Magnet 2mm X 1.5mm (Flipkart)

INSTRUCTIONS:

• Solder all the components except ATTINY84 to the PCB as marked in the board itself
• If you aren't making use of Hall effect sensors and magnets,short these two pins right away

• Bootloading and uploading the code to the Microcontroller:

  • Install support for ATTINY: https://github.com/SpenceKonde/ATTinyCore
  • Upload the "Arduino as ISP sketch" to the Arduino board of yours :[File] -> [Examples] -> [Arduino as ISP]
  • Connect the ATTINY with your arduino board based on the wiring below
  
  • In the arduino IDE:
  • Select the correct chip:
    • Attiny Core: "Attiny 24/44/84"
    • Chip "Attiny 84"
    • 8 Mhz (Internal)
    • Pin Mapping "Counter Clockwise"
  • Upload the code

• Now Attiny can be placed on the spinner and debugged accordingly

Before soldering	After soldering

OUTPUT:

Mode 1	Mode 2	Mode 3	Mode 4	Mode 5	Mode 6	Mode 7

Video link: https://drive.google.com/file/d/1ZZAy-tW8ZSH9PZ8rhj1HC3PhIRssyyVU/view?usp=sharing

Reference and Credits:

• https://www.instructables.com/Geek-Spinner/