There exist several libraries for the 3208/16 Sure display panels I'm using the Gauvravmm library.. with 2 Sure 3208 panels and it works well... I do have some sample code for 2 ,3208 panels. Thanks to Pedro147 as i remember it was originally for one panel but the modifications for two were simple. I'm using a Pro-Mini for the controller and the original Sure controller board for the display PSU. Google shows a bunch of code and library files... Adafruit might also have what you want too... They sell a Nice 3216 3 coloor display as well..
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