Problems With Serial Communication to Arduino

Hi SOURCE AUDIO, thank you for your reply!

1- OK, so I don't have 6 serial objects that need to read the data, only 1. However I thought if I added them all it would save any fault finding later because Max would automatically find the correct port available. But since you have pointed this out, I do realise it is a bit stupid and I should just stick to the port I am working with.

2- Pairs subpatch attached for reference.

3- I was re working the code yesterday and found a better solution to what I am trying to do. But essentially I want the servo's to wait at position 0 until relevant data to the pin on Arduino is read and then move to 45, delay, move back to 0, and wait again until its number is called.

The issue that I am having is that everything works when I test individually;
- Max is outputting numbers i want
- Arduino is receiving data
- When using Arduino serial monitor and manually typing incomingByte, servo moves to 45 and back

However when I test all in sequence and connected, the servo refuses to move. I did see in another forum that code needs to be uploaded to Arduino, and Arduino software closed BEFORE Max is opened. This fixed my problem with Arduino receiving data but had no effect on the servo's movement.

I suppose my question is, is why would everything work logically/individually but not in sequence? Is there something I am missing somewhere?

Wiring is standard 5vOUT to servo power, GND to servo GND, PIn9 to Servo data. Could it be that I am powering the Arduino via USB and not external power source? Or is something inherently wrong with the patch?

Thanks again for the reply and I hope I am starting to make sense.

New code below

#include <Servo.h>

Servo myServo;
int pos = 45;
byte incomingByte = 0;
boolean newData = false;

void setup() {
    Serial.begin(9600);
    myServo.attach(9);
    myServo.write(0);
    Serial.println("born and ready for action");
}

void loop() {
    recvData();
    moveServo();
}

void recvData() {
    if(Serial.available() > 0) {
        incomingByte = Serial.read();
        newData = true;
    }
}

void moveServo() {
    if(newData == true && incomingByte == 3) {
        Serial.println(incomingByte);
        myServo.write(pos);
        delay(100);
        myServo.write(0);
        delay(100);

        newData = false;
    }
}