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 (mmc323@cornell.edu), Joseph Horwitz (jah569@cornell.edu), Rabail Makhdoom (rm857@cornell.edu)
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
- main.c
-
/PYTHON
- wifi.py
- TCP server for sending image data
- wifi.py
-
/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
- /CAD