You should be able to wire a switch and blink an LED when the switch is closed using Arduino this week as well as demonstrate Analog Input.
Assignment 2: Presence
Create a device that detects the presence and/or absence of someone. Use what we learned this week and last. Be creative. Take advantage of the affordances of the sensors and output you have available to you. What are the limitations of these particular components? How can you design around them?
ALSO: FOR NEXT WEEK, please make sure you have a servo motor and an ultrasonic range finder!