Arduino does not send data via bluetooth

Projects Networking, Protocols, and Devices
1

Hi,
I have a HC-05 module, and Arduino Uno. I have connected everythink like that, only instead 20k transistor I used 2x10k (I want to send data from ultrasonic module).

I writed simple code, to check if bt module works:

#include <SoftwareSerial.h>
SoftwareSerial bluetooth(2, 3);

void setup() {

  Serial.begin (9600);
  bluetooth.begin(9600);
}
 
void loop() {

  if (bluetooth.available())
    Serial.write(bluetooth.read());
  if (Serial.available())
    bluetooth.write(Serial.read());

 delay(50);
}

And what is my problem. I can send data from terminal on my phone, and it appears on my pc, but it does not work when I type somethink on my pc. It doesn't show on my phone.
I connected the bt module to 2 and 3 pin, because on 0 and 1 (and without SoftwareSerial.h) even sending data from phone to pc wasn't working.

Thanks.

2

http://tronixlabs.com.au/news/tutorial-using-hc06-bluetooth-to-serial-wireless-uart-adaptors-with-arduino/

3

I still cant receive data from pc, it is not showing on my phone. Is this connected correct?

4

No. You have connected bluetooth to hardware serial, pins 0,1,while the programme is trying to talk to it over software serial, pin 2,3.

5

It is connected to 2, 3 (hard to see on the photo).