Disney RFID Reader
3D Printing
Family
Electronics
Replicating the Disney Magic Band reader system to scale as a gift for my brother.
Iteration 1
Winter 2024
5 V DC powers a Raspberry Pi Zero 2W with a speaker driver (PWM), an RFID antenna (SPI), and an Arduino Nano (serial).
The Raspberry Pi platform uses the same PWM channels for GPIO and audio, so the LEDs must be driven by an Arduino.
The speaker was salvaged from a desktop speaker available at Walmart.
Rings of 61 LEDs spiral outwards, each stripping the first bytes off of the color signal and passing the rest down the chain.
Written in Python and C++, both codebases rely on Free Open Source Software libraries.
All code is available in my GitHub repository.
def main():
rfid = PN532_SPI(debug, reset, cs)
setup_rfid(rfid)
# Initialize the mixer
pygame.mixer.init()
sound = Sound('play.mp3')
sound.set_volume(0.25)
# Initial startup test
SoundAndLights(sound)
while True:
uid = read(timeout=0.1)
if uid is not None:
print('Found card')
SoundAndLights(sound)
Designed Onshape in a bottom-up structure of systems of groups of parts, all related using variable studios and mates.
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Most parts are printed from Protopasta Brass 60% by weight High Temperature PLA.
Color bands are PTFE printed separately.
All parts were printed on my Ender 3 Pro.
The final RFID reader is a NFC RFID PN532 Castellated Module by Questwise Ventures.
It is the smallest RFID module I could find and it works perfectly in this application!
RFID-RC522 and Wiegand 26 readers were also tested but were incompatible or large.
Exported parasolid file from Onshape into SolidWorks for its exploded view animation.
Custom callouts template created and rendered in Adobe Premiere Pro 2024.
"There's a Great Big Beautiful Tomorrow" at Tokyo Disneyland is a great tune!
Iteration 0
Fall 2024
Development documentation hosted on a set of Notion pages (cross-platform notetaking)
Background research into the technologies used in each Magic Band and reader.
Managing a Part Breakdown System for CAD.
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