mas.500
problem set #3
due 10.9.12


Readings:

Arduino references: http://arduino.cc/en/Reference/HomePage

problem 1:  write a program for your arduino that takes in a string of
 alphabetical characters from the terminal monitor, and reverses the
 capitalization on them.  for example, "A" becoms "a", and "b" becomes
 "B".  have this new character printed to the terminal monitor.  print
 up a hard copy of the program to turn in, in class.

problem 2:  make the onboard LED slowly fade in and out, like a
 heartbeat. leave this program on your board, so we can see it working
 in class.  print up a copy of your code to turn in, in class.

problem 3: connect the CDS photocell to an analog input, so that you can
 measure the amount of light hitting it.  make the onboard led go from dim
 to bright based on this value.  print up a copy of your code to turn in, 
 in class.  also turn in a schematic of how you connected up the CDS
 photocell to the arduino.