new initialization varian to avoid invalid GPIO initialization

src/protocol.rs

@@ -35,20 +35,20 @@ pub struct Protocol {
 impl Protocol {
     pub fn new() -> Protocol {
         Protocol {
-            segments: Vec::with_capacity(8),
+            segments: Vec::new(),
             running: false,
         }
     }
 
     pub fn init(&mut self) {
-        self.segments[0] = Segment::new(5);
-        self.segments[1] = Segment::new(6);
-        self.segments[2] = Segment::new(13);
-        self.segments[3] = Segment::new(19);
-        self.segments[4] = Segment::new(26);
-        self.segments[5] = Segment::new(21);
-        self.segments[6] = Segment::new(20);
-        self.segments[7] = Segment::new(16);
+        self.segments.push(Segment::new(16));
+        self.segments.push(Segment::new(20));
+        self.segments.push(Segment::new(21));
+        self.segments.push(Segment::new(26));
+        self.segments.push(Segment::new(19));
+        self.segments.push(Segment::new(13));
+        self.segments.push(Segment::new(6));
+        self.segments.push(Segment::new(5));
     }
 
     pub fn start(&mut self) {