How to view M2 from Arduino IDE

General Discussion
#1

I am new to Arduinos and up to this point I have just uploaded software to my M2 and connected to it Via SavvyCan.

Using Arduino IDE 1.8.5 I can upload the sketches fine.

Blinky works fine…

When I try to open up the serial monitor and actually see what is going on I don’t see anything. From what I understand it should just start printing but my monitor has nothing in it…

I have tried using this Sketch, uploading it and setting the monitor to 9600 baud. Should print out “Hello World” But I am getting a blank screen.

Have tried this with both of my M2 units and both my desktop and laptop.

I am guessing I am missing something simple…

Here is the sketch I am running:

void setup()                    // run once, when the sketch starts
{
  Serial.begin(9600);           // set up Serial library at 9600 bps
}

void loop()                       // run over and over again
{
  Serial.println("Hello world!");  // prints hello with ending line break
  delay(1000);
}
#2

Try using

SerialUSB.begin(115200); // This is the Native USB port of the DUE
delay(2000); // Delay 2 seconds to allow the USB port to initialise

Serial.print() tries to print to the serial port which in the case of the M2 is the XBEE socket.

#3

Thank you so much!

That was the ticket!

I figured it had to be something simple that I wasn’t getting.

SerialUSB instead of Serial…

So I take it then if you have a bluetooth serial connection then Serial.print would print to that.

#4

In theory yes in practice generally no because you are more likely to use Serial.read() & Serial.write() & Serial,event() because you may be manipulating the Serialbuffer or using the serial interrupt rather than polling the serial port looking for data.
If you intend to talk to a Bluetooth XBEE device i would suggest you brush up on the serial functions in the Arduino playground & also do a little light reading in some of the other ancillary functions listed there which will point you in the right direction,

1 Like
#5

Thank you. I am a ways from that yet but I am learning…