Vfrdtyky

I'm using an android app to send values to control servos.
Code:

char inputData[4];  

char buffer[3];

void loop()

{







   if(Serial.available() > 3) {

      for (int i = 0; i < 4; i++){

        inputData[i] = Serial.read();



        }

    char buffer[4];

    buffer[0] = inputData[1];

    buffer[1] = inputData[2];

    buffer[2] = inputData[3];

    buffer[3] = '';

    int angle = atoi(buffer);

    Serial.write(angle);





   }

}

Issue: I'm getting the values + A-F letters to address each servo - A10, A180, B30 etc. Now the trouble is turning this to an actual integer. As you can see I've declared a character array to store the integers in and as suggested in a post on the arduino forum, I added a at the end of the array. Currently, the Atoi returns random characters, mostly squares and some random numbers. I've tried even assigning them to a string and then .toInt() but same issue there, mostly squares.
Any ideas?
Thanks!

Use print or println to see the number as text. write sends it as byte and Serial Monitor shows a symbol with that ASCII code.