pneumatik/serial-controll/main.ino

#include <Servo.h>

char input;
Servo pneu_servo;

void setup() {
  pneu_servo.attach(9);
  Serial.begin(9600);
  pneu_servo.write(45);
  Serial.println("Started give me input");
}

void loop() {
  if (Serial.available() > 0) {
    input = Serial.read();
    switch (input) {
      case '1':
        pneu_servo.write(30);
        break;

      case '2':
        pneu_servo.write(45);
        break;

      case '3':
        pneu_servo.write(65);
        break;
    }
  }
}