i have seen the 1.2" led displays on adafruit ( the backpacks ) i am looking for larger displays that operate like the back packs.
do they make larger ones ?
if not how can i make my own ? the backpacks seem to use just 4 connections. (I2C)
example ---> https://www.adafruit.com/products/1269
So the example you show in the link above seems to be based on the HT16K33 chip detailed here:https://www.adafruit.com/datasheets/ht16K33v110.pdf
So, if you were to just get the "backpack" board they sell here:https://www.adafruit.com/products/1427
and then use discreet LEDs for each segment, you could make a pretty big display like this:https://www.esr.co.uk/cebek/cd-23.htm
Or like this one made from glue sticks:http://hackaday.com/2011/08/25/large-7- ... from-glue/
Or heck, go all out and make a 12 FOOT display like this:https://www.sparkfun.com/tutorials/47