int leftMotor_left = 22;
int leftMotor_right = 19;
int rightMotor_left = 18;
int rightMotor_right = 17;
int extra1 = 21;
int extra2 = 23;

void setup() {
   Serial.begin(115200);
   pinMode(leftMotor_left, OUTPUT);
   pinMode(leftMotor_right, OUTPUT); 
   pinMode(rightMotor_left, OUTPUT);
   pinMode(rightMotor_right, OUTPUT); 
   pinMode(extra1, OUTPUT);
   pinMode(extra2, OUTPUT);
   
   digitalWrite(leftMotor_left, HIGH);
   digitalWrite(leftMotor_right, LOW); 
   digitalWrite(rightMotor_left, HIGH);
   digitalWrite(rightMotor_right, LOW); 
   digitalWrite(extra1, LOW);
   digitalWrite(extra2, LOW);
   }

#define max_buffer 25

void loop() {
  // Primarily we will stimulate motors one to prove it works after we'll work on getting an input and sending it via Bluetooth
   static char chr;
   static char buffer[max_buffer] = {0};
   static int index;
   if (Serial.available()) {
      chr = Serial.read();
      Serial.print("hello.ESP32-WROOM.echo: you typed \"");
      buffer[index++] = chr;
      if (index == (max_buffer-1))
         index = 0;
      Serial.print(buffer);
      Serial.println("\"");
      }
   }