May Arduino execute sketch on power supply?

Projects General Guidance
29

This will do the sequence just once:

#include <Servo.h>

Servo Myservo;  // create servo object to control a servo
const byte ServoPin = 3;

const int minAngle = 45;
const int maxAngle = 50;
int angle = minAngle;   // initial angle
int angleStep = 10;

void setup()
{
  // Servo button demo by Robojax.com
  Serial.begin(9600);          //  setup serial

  Myservo.attach(ServoPin);  // attaches the servo on pin 3 to the servo object
  Serial.println("Robojax Servo Button ");
  Myservo.write(angle); //initial position
  
  angle += angleStep;
  Myservo.write(angle);
  Serial.print("Moved to: ");
  Serial.print(angle);   // print the angle
  Serial.println(" degree");
  delay(200); // waits for the servo to get there
  
  angle -= angleStep;
  Myservo.write(angle);
  Serial.print("Moved to: ");
  Serial.print(angle);   // print the angle
  Serial.println(" degree");
  delay(200); // waits for the servo to get there
}

void loop() {}

Here is the more complex version in case you ever want to change minAngle, maxAngle, or angleStep:

#include <Servo.h>

Servo Myservo;  // create servo object to control a servo
const byte ServoPin = 3; //~

const int minAngle = 45;
const int maxAngle = 50;

int angle = minAngle;   // initial angle  for servo (beteen 1 and 179)
int angleStep = 10;

void setup()
{
  // Servo button demo by Robojax.com
  Serial.begin(9600);          //  setup serial
  Myservo.attach(ServoPin);

  Serial.println("Robojax Servo Button ");
  Myservo.write(angle);//initial position

  bool running = true;
  while (running)
  {
    // change the angle for next time through the loop:
    angle = angle + angleStep;
    
    // reverse the direction of the moving at the ends of the angle:
    if (angle >= maxAngle)
    {
      angleStep = -angleStep;
    }

    if (angle <= minAngle)
    {
      running = false;
    }
   
    Myservo.write(angle); // move the servo to desired angle
    
    Serial.print("Moved to: ");
    Serial.print(angle);   // print the angle
    Serial.println(" degree");

    delay(200); // waits for the servo to get there
  }
}

void loop() {}
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