Measure how "hot-blooded" you are using a temperature sensor.
Clue people into how you’re feeling using a servo motor. Arduino projects book
Users are introduced to the Arduino Uno board and the Arduino IDE (Integrated Development Environment) for writing and uploading "sketches" (code). Measure how "hot-blooded" you are using a temperature sensor
Create a master control for all your devices. User Experience and Reviews Arduino Projects Book - sciphilconf.berkeley.edu Arduino projects book
Use light sensors to create a lamp that changes color.
Play music and make some noise with a piezo buzzer and buttons.