sgstair / ledsign

A software/hardware stack to display information on a group of LED panels

LED Sign Project

Excitement! v1a hardware has been assembled and is working correctly - Next work is to get the USB Device functionality working and then it will be on to more fancy software features!

Interested in seeing more about this project?

• Youtube channel - More videos about this project will be posted here over time

  • LED Sign Project update #1

• Flickr photostream - I'll be adding pictures here

  • Recent state of rework on the board
  • Shiny, assembled, circuit boards

Future

The general vision for this project is to build an extendable and highly configurable LED panel sign controller. Core features are to emulate "basic" scrolling LED signs, and provide a way to easily format and display relevant information from web feeds, etc. Planned modules include stock market, weather, time, arbitrary json content extraction, spectrum analyzer.

Current Status

• Software to draw and animate a basic sign made of a bunch of elements is basic, but usable.
• Test board firmware and host side control software working quite well
• FPGA drives LED panel as framebuffer, software can write data via test board currently.
• Updated and uploaded PCBs - Ordered the rev1a PCBs, assembled, and they've been tested and are working.

Next few work items, in no particular order

• Configuration for number of panels being used
• Gamma lookup table in FPGA for better color precision
• Add 32x16 panel scanning mode (probably allow only 32x16 panels to be used in this mode)
• USB device support for configuration and writing image data