#include <SoftwareSerial.h>
int txPin = 1;
int rxPin =0;
bool y = 1;
bool n = 0;
SoftwareSerial bt(txPin, rxPin);
int btnpin=13;
void setup() {
pinMode(13, INPUT);
bt.begin(9600);
Serial.begin(9600);
}
void loop() {
if(bt.available()) {
if(digitalRead(btnpin) == HIGH)
bt.write(y);
else bt.write(n);
}
delay(100);
}