Need help with my first project

[hallowed31]

@macgyver60

Thanks in advance for any help.

You could always put your servo stuff in its own function you call only when you want to use it, something like:

@macgyver60

void doTheThingAndShootSomeString(){
    Serial.println("Motion detected! Moving to 45 degrees.");
    myServo.attach(servoPin);
    myServo.write(45);        // Move to 45°
    delay(5000);              // Wait 5 seconds
    myServo.write(0);         // Return to 0°
    myServo.detach();
    Serial.println("Returned to 0 degrees. Starting cooldown...");
}

In this way, you also save on battery and jitter on the servo since it shuts off when not in use.

Then just call the function as needed like:

doTheThingAndShootSomeString();

edit:
Also,

@macgyver60

delay(100); // Small delay to prevent noisy readings

This delay is probably not doing you any favors. Any such purpose with regard to your PIR sensor module is already built in to the PIR sensor module: it's a digital sensor, after all, with no need for debouncing as you do need with a standard pushbutton.