ESC/Servo serial control

serial_servo_control

String inString = "";
#include <Servo.h>
Servo myservo1;
void setup() {

  myservo1.attach(9);
  Serial.begin(2000000);

  Serial.println("ESCs Speed Control. attach pin 9 to the ESC.");
}

void loop() {
  while (Serial.available() > 0) {
    int inChar = Serial.read();
    if (isDigit(inChar)) {
      inString += (char)inChar;
    }
    if (inChar == '\n') {
      if (inString.toInt() >= 400 && inString.toInt() <= 2600) {
        Serial.println(inString.toInt());
        myservo1.write((inString.toInt()));
      }
      inString = "";
    }
  }
}