iowa-timer/loop.ino

void loop() {
  if (mode == MODE_RESTING && millis() > restExpires) {
    mode = MODE_SPINUP;
    lastTime = 0;
    showShape(2);
    showShapeLAP(2);
  }
  if (mode == MODE_SPINUP) {
    showShapeLAP(20 + (millis() / 62) % 8);
  }
}