Review Questions: Serial

The following are questions you should be able to answer by the respective weeks in Introduction to Physical Computing. Try to answer all of the questions without resorting to copying external code or diagrams. If you don’t know where to start on a given question, first review the lab and material from the syllabus for the week in question, and then consult with your instructor in office hours. If you plan to discuss the questions with your instructor, fill in the answers in the text fields below and print this page out (or save as PDF) to review with your instructor. There is no submit button, the form fields are only for you to type into for convenience.


Question 1


Question 2


Question 3

Screen capture of Arduino console. Text reads "Error opening serial port '/dev/cu.usbmodem14211'. (Port Busy)"

MacOS screen capture of an alert dialog from an unknown application. Text reads "An Error Occurred while attempting to open the port. 100: Access Denied"

Output from a command line interface:

$ p5serial
p5.serialserver is running
[Error: Error: Resource busy, cannot open /dev/cu.usbmodem14211]




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Originally written on September 18, 2018 by David Rios
Last modified on October 9, 2018 by Tom Igoe