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looking for a larger display..

Posted: Wed Oct 14, 2015 7:14 pm
by dacflyer
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

Re: looking for a larger display..

Posted: Mon Dec 28, 2015 8:52 am
by VernGraner
dacflyer wrote: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

:shock: :grin:

Vern

Re: looking for a larger display..

Posted: Tue Dec 29, 2015 7:52 pm
by dacflyer
i actually used some 10 displays and a driver board, and then built my GPS clock.. trying to get a case made for it now.