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 Post subject: looking for a larger display..
PostPosted: Wed Oct 14, 2015 7:14 pm 
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Joined: Fri Feb 08, 2002 1:01 am
Posts: 4162
Location: USA / North Carolina / Fayetteville
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


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 Post subject: Re: looking for a larger display..
PostPosted: Mon Dec 28, 2015 8:52 am 
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Joined: Sun Mar 02, 2003 1:01 am
Posts: 255
Location: Austin Texas
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



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Vern Graner
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Nuts & Volts Magazine | SERVO Magazine
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 Post subject: Re: looking for a larger display..
PostPosted: Tue Dec 29, 2015 7:52 pm 
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Joined: Fri Feb 08, 2002 1:01 am
Posts: 4162
Location: USA / North Carolina / Fayetteville
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.


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