 
 int MAIN_SIGNAL_MIN = 1300;
 int MAIN_SIGNAL_MAX = 1750;
-int MAIN_SIGNAL_DURATION_MS = 1200;
+int MAIN_SIGNAL_DURATION_MS = 2200;
 int main_signal_timestep_ms;
 unsigned int main_signal_next_time_ms;
 int main_signal_value;
 
 int SECONDARY_SIGNAL_MIN = 1150;
 int SECONDARY_SIGNAL_MAX = 1750;
-int SECONDARY_SIGNAL_DURATION_MS = 1200;
+int SECONDARY_SIGNAL_DURATION_MS = 2200;
 int secondary_signal_timestep_ms;
 unsigned int secondary_signal_next_time_ms;
 int secondary_signal_value;



void loop() {
  // perhaps_update_main_signal();
  perhaps_update_secondary_signal();
}

void setup() {
  pinMode(13, OUTPUT);

  main_signal.attach(11);
  main_signal_timestep_ms = (MAIN_SIGNAL_DURATION_MS) / (MAIN_SIGNAL_MAX - MAIN_SIGNAL_MIN);
  main_signal_value = MAIN_SIGNAL_MIN;
  main_signal.writeMicroseconds(main_signal_value);
  main_signal_next_time_ms = millis() + INITIAL_DELAY_MS;
  main_signal.writeMicroseconds(main_signal_value);

  secondary_signal.attach(12);
  secondary_signal_timestep_ms = (SECONDARY_SIGNAL_DURATION_MS) / (SECONDARY_SIGNAL_MAX - SECONDARY_SIGNAL_MIN);
