Bluetooth module setup

Hey there,

i have some difficulties to connect my arduino with this bluetooth module:

http://www.seeedstudio.com/depot/serial-port-bluetooth-module-masterslave-p-572.html

I want to use it with my android phone via amarino, but my problems start right at the beginning.
The module is connected a bit nonprofessional on a breadboard, wired like:

module → arduino

GND → GND
3.3V → 3.3V
RX → 9
TX → 10

This is my sketch to set up BT module:

#include <SoftwareSerial.h>

SoftwareSerial bluetooth(9,10);

void setup(){
  Serial.begin(38400);
  Serial.flush();
  bluetooth.begin(38400);
}

void loop(){
  if(Serial.available()){
    bluetooth.write(Serial.read());
  }
  
  if(bluetooth.available()){
    Serial.write(bluetooth.read());
  }
}

I tried some commands but mostly i got the same back, sometimes i got an “ERROR” back.
Now i noticed this in the datasheet: Low Power 1.8V Operation ,1.8 to 3.6V I/O

Is it possible that i destroyed the module?

Thank you for any help, i really need something like a tutorial :~

  Serial.begin(38400);
  Serial.flush();

Open the serial port, and then immediately either dump and unread data, or wait for any pending data to be sent, depending on which version (unspecified) of the Arduino IDE you are using.

Why? Neither condition can possibly be true for a port that was just opened.

I tried some commands but mostly i got the same back, sometimes i got an “ERROR” back.

But, you are not going to show us what you tried. Well, OK.

Is it possible that i destroyed the module?

If you are getting any response from it, it is working.

You just need to send it the right commands.