AirQfy Fear Not the Particulates

int led_onboard = 13;
int threshold_mindist = 80; // minimum distance for sensor to detect object [cm]
long duration_pink, duration_yellow, distance_cm_pink, distance_cm_yellow;
void setup() {
//Serial Port begin
Serial.begin (9600);
//Define inputs and outputs
pinMode(trigPin_orange, OUTPUT);
pinMode(echoPin_yellow, INPUT);
pinMode(trigPin_purple, OUTPUT);
pinMode(echoPin_pink, INPUT);
pinMode(led_onboard, OUTPUT);
digitalWrite(led_onboard, LOW);
}
void loop() {
// Sensor Orange/Yellow: ///////////////////////////////////////////
// The sensor is triggered by a HIGH pulse of 10 or more microseconds.
// Give a short LOW pulse beforehand to ensure a clean HIGH pulse:
digitalWrite(trigPin_orange, LOW);
delayMicroseconds(5);
digitalWrite(trigPin_orange, HIGH);
delayMicroseconds(10);
digitalWrite(trigPin_orange, LOW);
// Read the signal from the sensor: a HIGH pulse whose
// duration is the time (in microseconds) from the sending
// of the ping to the reception of its echo off of an object.
duration_yellow = pulseIn(echoPin_yellow, HIGH);
distance_cm_yellow = (duration_yellow / 2) / 29.1; // Divide by 29.1 or multiply by 0.0343
// Sensor Purple/Pink: ///////////////////////////////////////////
digitalWrite(trigPin_purple, LOW);
delayMicroseconds(5);
digitalWrite(trigPin_purple, HIGH);
delayMicroseconds(10);
digitalWrite(trigPin_purple, LOW);
duration_pink = pulseIn(echoPin_pink, HIGH);
distance_cm_pink = (duration_pink / 2) / 29.1; // Divide by 29.1 or multiply by 0.0343
// Serial.print(distance_cm_yellow);
// Serial.println("cm (Gate 2)");
// Serial.print(distance_cm_pink);
// Serial.println("cm (Gate 1)");
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