module neo8x8(){
color("black") cube([71.12,71.12,1.6]);

    module iohole(){
        difference(){
        translate([-.4,3,-.1]) color("gold") cylinder(h=1.75, d=2, $fn=100);
        translate([-.4,3,-.2]) color("gold") cylinder(h=3, d=1, $fn=100);
    }
    }

        translate([8.9,0,-.01]) iohole();
        translate([8.9,3,-.01]) iohole();    
        translate([8.9,6,-.01]) iohole();
        translate([63,65,-.01]) iohole();
        translate([63,62,-.01]) iohole();    
        translate([63,59,-.01]) iohole();

    translate([6.5,1.5,0]) rectangular_array(8,8,9) pixel90();

    module pixel(){
        union(){
    
        difference(){
        translate([0, 0, 1.6]) color("white") cube([5,5,1.6]); 
        translate([-.5, -.5, 1.4]) cube([6,1.5,.35]); 
        translate([-.5, 4, 1.4]) cube([6,1.5,.35]); 
        translate([2.5,2.5,2.5]) cylinder ( h=5, r=1.8, $fn=100);

        }
        translate([0,0,1.6]) color("white") cube([.4,5,.5]);
        translate([1.6,0,1.6]) color("white") cube([.4,5,.5]);
        translate([3.1,0,1.6]) color("white") cube([.4,5,.5]);
        translate([4.6,0,1.6]) color("white") cube([.4,5,.5]);
        }
      }

    module pixel90(){
        rotate(90) pixel();
    }

    module rectangular_array (rows, cols, distance){
        for ( i = [0:1:rows-1]){
            for ( j = [0:1:cols-1] ) {
            translate([distance*i, distance*j, 0])
            children();
            }
        }
    }
}
neo8x8();