iowa-timer/showShapeLap.ino

void showShapeLAP(int shape)
{
  //    -  A
  //   / / F/B
  //    -  G
  //   / / E/C
  //    -. D/DP

#define a  1<<0
#define b  1<<6
#define c  1<<5
#define d  1<<4
#define e  1<<3
#define f  1<<1
#define g  1<<2
#define dp 1<<7

  byte segmentsLAP1;
  byte segmentsLAP2;
  
  switch (shape)
  {
    // 
    case 0:
      segmentsLAP1 = a | f | b | e | c | d;
      segmentsLAP2 = a | f | b | e | c | d;
      break;
    // . .
    case 1:
      segmentsLAP1 = dp;
      segmentsLAP2 = dp;
      break;
    // _ _
    case 2:
      segmentsLAP1 = d;
      segmentsLAP2 = d;
      
      break;
    // Double 88
    case 3:
      segmentsLAP1 = a | f | b | e | c | d | g;
      segmentsLAP2 = a | f | b | e | c | d | g;  
      break;
    // - -
    case 4:
      segmentsLAP1 = g;
      segmentsLAP2 = g;
      break;
    // NOTHING
    case 5:
      segmentsLAP1 = 0;
      segmentsLAP2 = 0;
      break;  
  }
  //Clock these bits out to the drivers
  // SegmentLAP1
  for (byte x = 0 ; x < 8 ; x++)
  {
    digitalWrite(segmentClockLAP, LOW);
    digitalWrite(segmentDataLAP, segmentsLAP1 & 1 << (7 - x));
    digitalWrite(segmentClockLAP, HIGH); //Data transfers to the register on the rising edge of SRCK
  }

  digitalWrite(segmentLatchLAP, LOW);
  digitalWrite(segmentLatchLAP, HIGH); //Register moves storage register on the rising edge of RCK

  // SegmentLAP2
  for (byte x = 0 ; x < 8 ; x++)
  {
    digitalWrite(segmentClockLAP, LOW);
    digitalWrite(segmentDataLAP, segmentsLAP2 & 1 << (7 - x));

    digitalWrite(segmentClockLAP, HIGH); //Data transfers to the register on the rising edge of SRCK
  }

  digitalWrite(segmentLatchLAP, LOW);
  digitalWrite(segmentLatchLAP, HIGH); //Register moves storage register on the rising edge of RCK

}