Serial Lab
After hooking up a potentiometer to my Arduino board, and uploading this program, the serial monitor displays a bunch of seemingly random characters scroll by in the serial monitor window. These are the ASCII values associated with the byte numbers being sent from the Arduino board.
When I turn the potentiometer very slowly, the monitor displayes the ASCII values slowly, starting with numerals, followed by capital letters and then lowercase letters. This image shows a rapidly repeating lowercase “o”…
Then, after uploading a very simple graphing program in Processing, I was able to turn the potentiometer and watch the graph react. It looked like this:
