ECE-4760 Final Project: Persistence of Vision Display

A persistence of vision display constructed from scratch using the Raspberry Pi Pico W microcontroller. Runs at 30 FPS with full RGB color and streams images over wifi.

Created by: Michael Crum ([email protected]), Joseph Horwitz ([email protected]), Rabail Makhdoom ([email protected])

Read the write up: https://michael-crum.com/pov_display/

Project structure:

• /PICO

  • main.c
    • Code entry point on the pico
  • /drivers/apa102
    • Driver for the SPI based APA102 LEDs
  • /utils/picow_tcp_client.c
    • Driver for the TCP client

• /PYTHON

  • wifi.py
    • TCP server for sending image data

• /new_python

  • New experimental python setup, including a browser based interface and support for most image types including gif's
  • web_server.py
    • Entry point for the program, launches the webserver which serves the web interface on localhost port 8080 (localhost:8080 in your web browser)
  • tcp_server.py
    • Handles connecting to the display over TCP, and sending arbitry data over the connection
  • file_translation.py
    • Translates image data to a radial RGB format used by the display
  • display_driver.py
    • Handles the transition from a file name to the proper byte format, then sends packets to the display using functions from tcp_server.py
  • index.html
    • The html file served by the browser client in web_server.py

• /HARDWARE

  • /CAD
    • STL files for 3D printing the mechanical structure
  • /ELECTRICAL
    • KiCad project files for the rotor and control board PCBs