// ---------------------------------------------------------------------------
// NewPing library sketch that interfaces with all but the SRF06 sensor using
// only one Arduino pin. You can also interface with the SRF06 using one pin
// if you install a 0.1uf capacitor on the trigger and echo pins of the sensor
// then tie the trigger pin to the Arduino pin (doesn't work with Teensy).
// ---------------------------------------------------------------------------

#include <Ultrasonic.h>

#define SONAR_NUM 2      // Number of sensors.
#define MAX_DISTANCE 200 // Maximum distance (in cm) to ping.

Ultrasonic sonar[SONAR_NUM] = {
  Ultrasonic(12, 14),   // Sensor object array.
  Ultrasonic(26, 25)
};

void setup() {
  Serial.begin(115200); // Open serial monitor at 115200 baud to see ping results.
}

void loop() {
for (uint8_t i = 0; i < SONAR_NUM; i++) { // Loop through each sensor and display results.
    delay(50); // Wait 50ms between pings (about 20 pings/sec). 29ms should be the shortest delay between pings.
    Serial.print(i);
    Serial.print("=");
    Serial.print(sonar[i].read());
    Serial.print("cm ");
  }
  Serial.println();
}