Communication between HC-06 and HC-05 not working... :(

Using Arduino IDE 1.x
1

I'm trying to make bluetooth controller for my new arduino based robot (HC-05 on robot & HC-06 on controller). But I have big issue with bluetooth serial... Both bt modules blinks leds like it should be succesfully connected with each other, but when i try to send data to other arduino, it's not working... I am not using SoftwareSerial, but I connected both bt modules' tx&rx directly to arduino tx&rx pins. At one point the robot arduino was getting "-1" data.

http://www.martyncurrey.com/connecting-2-arduinos-by-bluetooth-using-a-hc-05-and-a-hc-06-pair-bind-and-link/

Robot code:

#include <Servo.h>

//Servo Configurations
Servo Servo1; //Turn
Servo Servo2; //Head move forward/backward
Servo Servo3; //Head move sideways

int pos1 = 90;
int pos2 = 100;
int pos3 = 100;

//L298N Configuration
int IN1 = 2;
int IN2 = 3;
int IN3 = 4;
int IN4 = 5;
int ENA = 6;
int ENB = 10;

int RUN = 1;

void setup()
{
//Data rate for the SoftwareSerial port
Serial.begin(9600);
Serial.println("Drive-system is ready.");

//Motor-pins
pinMode(ENA, OUTPUT);
pinMode(ENB, OUTPUT);
pinMode(IN1, OUTPUT);
pinMode(IN2, OUTPUT);
pinMode(IN3, OUTPUT);
pinMode(IN4, OUTPUT);

//Define the servo digital pins
Servo1.attach (9);
Servo2.attach (8);
Servo3.attach (7);

Servo1.write(pos1);
Servo2.write(pos2);
Servo3.write(pos3);

}

void loop()
{
Serial.write('1');
delay(500);

}

Controller code:

//Left Joystick
const int L_Y_pin = A1;
const int L_X_pin = A0;
int L_Y_value = 0;
int L_X_value = 0;

//Right Joystick
const int R_Y_pin = A2;
const int R_X_pin = A3;
int R_Y_value = 0;
int R_X_value = 0;

//Left button
const int L_Button_pin = 13;
int L_Button_state = 0;

//Right button
const int R_Button_pin = A7;
int R_Button_state = 0;

void setup()
{
Serial.begin(9600);
Serial.println("Controller is ready.");

pinMode(13, INPUT);
pinMode(A7, INPUT);
pinMode(A3, INPUT);
pinMode(A2, INPUT);
pinMode(A1, INPUT);
pinMode(A0, INPUT);
}

void loop()
{
Serial.write('2');
delay(500);

}

2

Where do you check if data is available, and if it is read it, then do something with it?

Looks like a bunch of logic is missing.

3

xleminen:
I connected both bt modules' tx&rx directly to arduino tx&rx pins.

BT RX pin should go to Arduino TX pin, and vise versa.