nwmedia-c262-lab9.ino

#include <Servo.h>

#define PIN_SERVO_ARM 10
#define PIN_SERVO_STAGE 9
#define ANGLE_COLLAPSE 105
#define ANGLE_EXPAND 0

Servo servoArm;
Servo servoStage;

void setup() {
  Serial.begin(9600);
  servoArm.attach(PIN_SERVO_ARM);
  servoStage.attach(PIN_SERVO_STAGE);
}

void loop() {
  servoStage.write(random(0, 2) >= 1 ? 120 : 60);
  delay(200);
  for (int pos = ANGLE_COLLAPSE; pos >= ANGLE_EXPAND; --pos) {
    servoArm.write(pos);
    delay(15);
  }
  delay(1000);
  for (int pos = ANGLE_EXPAND; pos <= ANGLE_COLLAPSE; ++pos) {
    servoArm.write(pos);
    delay(15);
  }
}