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#include <Arduino.h>
#include <Wire.h>
#include <OBD.h>

COBDI2C obd;

void setup()
{
  // start the serial connection (show messages on the tools/serial monitor, 
  // select correct baud rate (in my case it was 9600))
  Serial.begin(9600);
  // we'll use the debug LED as output
  pinMode(13, OUTPUT);
  // start communication with OBD-II adapter
  obd.begin();
  Serial.println("About to start");
  // initiate OBD-II connection until success
  while (!obd.init()){
  Serial.println("Connecting with obd...");
  // makes the led blink during connecting
  digitalWrite(13,LOW);
  delay(200);
  digitalWrite(13,HIGH);
  delay(200);
  }
  Serial.println("Connection established");
}

void loop()
{
  Serial.println("Acquiring RPM data");
  // turn of the led after entering the loop
  digitalWrite(13,LOW);
  int value;
  // save engine RPM in variable 'value', return true on success
  if (obd.read(PID_RPM, value)) {
  // light on LED on Arduino board when the RPM exceeds 1500    
  digitalWrite(13, value>1500 ? HIGH:LOW);
  Serial.println("value is above 1500 rpm");
  }
}