It is probably recommended to try connecting to the Arduino with a FunShield, once the sketch is loaded via CoolTerm or minicom or any other choices of Serial Terminal program, so that you know how to this works before. Of course, since the sketch is available, you are welcome to make any changes to fit your need. There are some visual feedbacks using the LED array on-board. Anyway, here is the actual exercise.
Analog input: trimmer Trimmer Control; this will display some value light Light Sensor reading; this will display value from the sensor temp Temperature Sensor reading; this will display value from the sensor
Analog output: speaker The speaker will make some sounds
Binary input: left Shows the status of the left button (0 or 1) right Shows the status of the left button (0 or 1)
The serial port should be set as 9600,8,n,1 (standard configuration). Use \r (or CR) for the line end termination.
Binary output: ronoff[0 or 1] ronoff1 to turn on the Red LED, ronoff0 to turn off the LED bonoff[0 or 1] bonoff1 to turn on the Blue LED, bonoff0 to turn off the LED gonoff[0 or 1] gonoff1 to turn on the Green LED, gonoff0 to turn off the LED