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wildstray / ht1632c

HT1632C dotmatrix display library for Arduino (and AVR/ARM/PIC clones)
GNU General Public License v3.0
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How to hookup 2x 3208 displays #12

Open GoogleCodeExporter opened 9 years ago

GoogleCodeExporter commented 9 years ago 
It's been almost a year since I've touched this library, and while I was using 
3216 displays before, I am doing a new project using 2x 3208 displays.    On 
the 3208 displays, there is a switch to indicate which CS the display is 
(1,2,3,4).  I was wondering how you would configure the library, along with the 
boards, to support >1 display.

It is my understanding  that you initialize the display as follows:
ht1632c ledMatrix = ht1632c(&PORTD, 7, 6, 4, 5, GEOM_32x16, 2);

this is constructed as follows: port, data pin, wr pin, clk pin, cs pin, geom, 
and number (number of displays)

While the 3216 displays have hex inverters to distribute the CS signal around, 
and there is only one CS line, am I correct in assuming that I need to hook up 
2 CS lines to the Arduino, for CS1 and CS2, and if so, then how do you specify 
the line above for 2 displays?  Would you specify two ht1632c matrix lines? or 
would you specify two pins for the CS line?

Original issue reported on code.google.com by EVANRIC...@gmail.com on 25 Feb 2013 at 11:01

GoogleCodeExporter commented 9 years ago 
Would love to figure out how to get this going too!

At the moment it just doesn't seem possible to use this library with the Sure 
3208 even though the geometry has a 32x8 value defined.

Any plans to get this working? Your library seems like the best one around 
looking at functionality, so it would be pretty awesome to have it working on 
3208s too!

Original comment by ke...@beyond.io on 20 Aug 2013 at 5:05