1. Ultrasonic touch guitar

The idea of this radical challenge is to use the ultrasonic sensor, touch sensors, and buttons on the NXT to create a guitar. The ultrasonic sensor can control the pitch of the note based on the location of the user’s hand, and the touch sensors can control other parameters of...

2. Zombie attack

In this activity, a group of students each build a robot. Each robot is assigned a number. It will then have to tag other robots with the number by using mail. Five tags and the robot takes on that robot’s number. The winner is the robot that has given its...

3. Sound display

The idea of this challenge is to collect and display sound data from the NXT sound sensor in real time on the LCD display of the NXT. You could include the ability to pause data collection by bumping a button to “freeze” a particular screen of the data until another...

4. Drive in a square

The goal of this activity is to make a robot car drive in a square path. Hint: Rotation sensors are great for controlling the angle of a car’s turn. Resources Square lesson plan – NXT-G (PDF) Square lesson plan – RCX + ROBOLAB (PDF)

5. NXT building tips

NXT Building Tips is a brief PDF guide to tips and tricks for building with the LEGO NXT, including: Basic LEGO brick stacking Using pegs to connect beams Connecting beams using axles and bushings Constructing sturdy shapes Attaching a wheel to a motor so that the motor turns Attaching motors...

6. Measuring the temperature of water

Use a temperature sensor, to measure the temperature of 3 different water sources. Gather data points every second for 25 seconds from each sample for analysis.

7. Tunnel vision

Design and construct a car and program it to drive through a tunnel, automatically turn on its headlights when it enters the tunnel, and turning them off when it gets to the other side.       Tip: What kind of sensor would be suitable for detecting when the robot...

8. Light sensor scavenger hunt

How can you determine the light conditions in different parts of a room? Can you find light sensor readings in the range of 0-30? 60-90? 90-100? Can you draw conclusions and make generalizations about light intensity in the room?