Waiting for a message in DWC

moosi

Hi,
I´m want to communicate between duet3 and an arduino.
So far I can send messages to the arduino (M118 ) and receive them when sent via the serial port.

What I want to do now is to wait for a specific response after sending a message.
I created a vue button (v-btn) and used this code for the click event below.
What is the right way to do it?

async click() {
      if (!this.waitingForCode) {
        this.waitingForCode = true;
        try {
          await this.sendCode(`M118 P2 S"MyMessageToArduino" L0`);
        } catch (e) {
          console.log(e);
        }
	// How do I wait for a message sent back from the arduino? Let´s say I want to wait for G555 or any other message...
        this.waitingForCode = false;
      }
    },

thanks for your help
Moosi