Serial.print not working on Stalker v3

Products & Technology Arduino & Seeeduino
#1

Hi,

I’m trying a very basic example… and Serial.print is not working. When I open the serial monitor, I get unreadable characters…

void setup() {
  pinMode(13, OUTPUT);
  Serial.begin(9600);
}

void loop() {
  digitalWrite(13, HIGH);
  Serial.println("ON");
  delay(500);
  digitalWrite(13, LOW);
  Serial.println("OFF");
  delay(500);
}

I’m using a FTDI cable, 5v… What I’m going wrong?

#2

Hi,

I got this problem at the begining, there are two possible explanations:

  1. Check that the serial rate (not sure this is the name for this) is the same between your code and your sketch (in your sketch it’s set to 9600, should be the same in the serial monitor)
  2. Choose the right card in arduino IDE, you must choose something called (from memory may vary a bit) “Arduino pro mini 8Mhz” (watch out that there’s also “Arduino pro mini 16Hz”).
    Hope this solves your issue. By the way, is your LED blinking (as it is supposed to judging from the sketch you posted)
    Oli