Today is our Day 1 of using Zumo (we bought assembled Zumo).
We followed the instructions on how to connect Zumo to our Macbook and how to upload sketches to Arduino IDE. In the beginning, everything looked fine. The sketches we uploaded are from Arduino>File>Examples>01.Basics, like Blink, DigitalSerial and after we uploaded Fade something strange happened, 8 black squares appeared on the screen and motor that moves wheels on one side of the robot started running, so robot started to rotate.
Then we switched it off, removed the cable and even tried to take the batteries out, but the black squares were still on the screen.
I am hoping somebody will be able to assist us to fix our robot’s LCD.