Led Pong Wall making of
Here is the making-of (code side) of the LED pong wall.
The idea was to build a wall of Led able to stream video. The project began a long time ago but technical problems and a little procrastination has resulted in some delay. For the hardware go to the blog of my buddy Lionel who will explain better than me.
Soft side there is 2 parts:
- arduino code: who decode messages from the serial port and send I2C message to max7313 controlling the led columns
- processing code: in charge of capturing the video and send it to the Arduino
Protocol
Between the application providing the source display and the arduino we needed a simple message to be able to easily use the wall.
The 432 LEDs of the wall have 16 levels of intensity we chose a message like : Z0FCADC0000 …….
So Z for the frame start flag and 432 Values between 0 and F at 38400bps.