Arduino printing Integer instead of string

Question

I have a problem, which I have been working on for some time. I have an Arduino Uno board and an HC-05 Bluetooth transceiver with TTL outputs.

The connections are as follows:

HC-05             Arduino UNO
-----             -----------
RX       -->      Pin 11
TX       -->      Pin 10
+5v      -->      +5v
GND      -->      GND 

The code is as follows:

#include <SoftwareSerial.h>
SoftwareSerial BTSerial(10, 11); // RX | TX
String character;

void setup() {
  Serial.begin(9600);
  pinMode(10, INPUT);
  pinMode(11, OUTPUT);
  digitalWrite(11, HIGH);
  Serial.println("Enter AT commands:");
  BTSerial.begin(38400);  // HC-05 default speed in AT command more
  BTSerial.println("Welcome to ARBA-Beat");
}

void loop() {
  // Keep reading from HC-05 and send to Arduino Serial Monitor
  if (BTSerial.available()) {
    character = BTSerial.read();
    Serial.println(character);
    //BTSerial.write(character);
    BTSerial.flush();
  }
}

I use Bluetooth terminal app for Android to transmit messages to the Arduino.

The problem is I am getting integer numbers instead of a string.

String: Arduino is great

I have no idea what's happeninng.

Any help appreciated.

Thank you.

Answer 1

Don't use String and use a char type.

char c= BTSerial.read();
Serial.write(c); Serial.write('\n');