I was following steps in the Ultrasonic tutorial (http://www.dexterindustries.com/Arduberry/example-projects-with-arduberry-and-raspberry-pi/ultrasonic-ranger/). Every step was fine (code uploaded to Raspberry,etc.), until I reach the step4.
When typing into 'inicom ama0' in the command line, I received the following error:
minicom: cannot open /dev/ttyAMA0: No such file or directory
My setup is that the Raspberry pi connects to the ArduBerry then to the Arduino basesheild. Meanwhile, the Raspberry pi is also connected to the GopiGo.
I didn't have this problem yesterday, and I don't know why I am running into this issue now. Do you know how to solve it?