Bluetooth - Serial monitor - Smart phone chat

#include <SoftwareSerial.h>

SoftwareSerial BTSerial(12, 13);

void setup() {

Serial.begin(9600);

BTSerial.begin(9600);

}

void loop() {

if (BTSerial.available())

Serial.write(BTSerial.read());

if (Serial.available())

BTSerial.write(Serial.read());

}

#include <SoftwareSerial.h>

SoftwareSerial BTSerial(12, 13);

int led = 8;

char command;

void setup() {

Serial.begin(9600);

BTSerial.begin(9600);

}

void loop() {

if (BTSerial.available()){

char command = BTSerial.read();

Serial.println(char(command));

if (command == ‘Y’ || command == ‘y’) {

digitalWrite(led, HIGH);

}

else if(command == ‘N’ || command == ‘n’){

digitalWrite(led, LOW);

}

}

}