newping.ino

#include <NewPing.h>
#include <Wire.h>
#include "rgb_lcd.h"


#define TRIGGER_PIN  12
#define ECHO_PIN     11
#define MAX_DISTANCE 200

rgb_lcd lcd;
const int colorR = 255;
const int colorG = 0;
const int colorB = 0;

 
NewPing sonar(TRIGGER_PIN, ECHO_PIN, MAX_DISTANCE);
 
void setup() {
  Serial.begin(115200);
  lcd.begin(16, 2);
    
  lcd.setRGB(colorR, colorG, colorB);
    
    // Print a message to the LCD.
     lcd.clear();

  delay(1000);
}
 
void loop() {
  delay(1000);
  lcd.clear();
  lcd.setCursor(0, 0);
  int uS = sonar.ping_cm();
   if ((uS < 10) && (uS != 0)){
    lcd.setRGB(colorR, colorG, colorB);
    lcd.setCursor (0, 0);
    lcd.print("Threat Distance: ");
    lcd.setCursor (0, 1);
    lcd.print(uS);
    //Serial.print(uS);
    lcd.print("cm");
    lcd.setCursor (8, 1);
    lcd.print ("Caution!");
    lcd.noAutoscroll();
  }
  else{
    lcd.clear();
    lcd.setRGB(0, 200, colorB);
    lcd.setCursor(0, 0);
    lcd.print ("No Threat");
    lcd.setCursor (0, 1);
    lcd.print ("Detected");
  }

  

}

Simple "threat detector" that utilizes a range sensor, arduino, and a Grove-LCD RGB Backlight display. Made 4/17/2016 at MenloHacks by Kaushal Partani, Murad Awad, and Shreyas Vaidya.