hey...is it possible to replace the arduino card with Raspberry Pi? and to display the location of the robot on my phone instead of the LCD?

Hi,

What kind of connector is used in the mouse I want to build my own cable

Hello Dear Madam/Sir
Have they odo features?
I mean for example; when i wanted to read data, should i also calculate the distance between A and B point. Or it can give me that data directly?
Regards

What is the silver button object included in the kit?

Yes, it's possible, you can get the position data and send the data to your phone.

Right after importing the required libraries (the hex commands can be found in the documentation) :

const char UBLOX_INIT[] PROGMEM = {
// Reset to manufacturer defaults
0xB5,0x62,0x06,0x09,0x0D,0x00,0xFF,0xFF,0x00,0x00,0x00,0x00,0x00,0x00,0xFF,0xFF,0x00,0x00,0x07,0x1F,0x9E,

// Enable UBX
0xB5,0x62,0x06,0x01,0x08,0x00,0x01,0x07,0x00,0x01,0x00,0x00,0x00,0x00,0x18,0xE1, //NAV-PVT on

// Update Rate
0xB5,0x62,0x06,0x08,0x06,0x00,0x64,0x00,0x01,0x00,0x01,0x00,0x7A,0x12 //Update 10Hz
};

And then in the setup:

void setup(){
...

for(int i = 0; i < sizeof(UBLOX_INIT); i++) {
serial.write( pgm_read_byte(UBLOX_INIT+i) );
delay(5); // simulating a 38400baud pace (or less), otherwise commands are not accepted by the device.
}

...
}