g'day,
i came across the peggy while searching for a way to control an array of LEDS in realtime;
all I want to do it light up one (or one central and a fading circle around it would be cool) LED at a time depending on the cursor position on the screen (of an attached/peggy driver PC).

I havent read the docs yet, but is peggy able to to this sort of thing? (I dont want to store a programmed animation).

from a brief look at the forum it would seem likely, as people are discussing streaming video (cool, esp if you can split the video into chunks and driver 4 or 16 peggys in an array to make a very big screen)

thanks,
- joseph

The Peggy 2 has an available I2C ("TWI" port for receiving data. I2C is a short-distance multipoint serial interface that can be used to hook (for example) an Arduino board up to several different Peggy boards and send data to them. Your computer can talk to the Arduino in real time over the serial port, and the Arduino can then send data to the different boards over I2C.

The Peggy2 is designed to support side-to-side tiling seamlessly, but has on-board electronics that get in the way of 2D tiling. We may design a "Peggy Interactive" in the not-too-distant future, that would be designed for tiling, however.