#define ECHO_1 2
#define TRIG_1 3
#define ECHO_2 4
#define TRIG_2 5
#define LED 7
#define LED_2 8
#define Speaker 12

void setup() {
Serial.begin(9600);
  pinMode(LED, OUTPUT);
  pinMode(LED_2, OUTPUT);
  pinMode(Speaker, OUTPUT);
  pinMode(TRIG_1, OUTPUT);
  pinMode(ECHO_1, INPUT);
  pinMode(TRIG_2, OUTPUT);
  pinMode(ECHO_2, INPUT);
}

float readDistanceCM_1() {
  digitalWrite(TRIG_1, LOW);
  delayMicroseconds(2);
  digitalWrite(TRIG_1, HIGH);
  delayMicroseconds(10);
  digitalWrite(TRIG_1, LOW);
  int duration_1 = pulseIn(ECHO_1, HIGH);
  return duration_1 * 0.034 / 2;
}
float readDistanceCM_2() {
  digitalWrite(TRIG_2, LOW);
  delayMicroseconds(2);
  digitalWrite(TRIG_2, HIGH);
  delayMicroseconds(10);
  digitalWrite(TRIG_2, LOW);
  int duration_2 = pulseIn(ECHO_2, HIGH);
  return duration_2 * 0.034 / 2;
}

void loop() {
float distance_1 = readDistanceCM_1();
float distance_2 = readDistanceCM_2();
  
  bool Warning_1 = distance_1 < 200;
  digitalWrite(LED, Warning_1);
  bool Warning_2 = distance_2 < 370;
  digitalWrite(LED_2, Warning_2);

  bool Warning_3 = distance_1 < 50;
  digitalWrite(Speaker, Warning_3);
  bool Warning_4 = distance_2 < 86;
  digitalWrite(Speaker, Warning_4);
}