Today you won't have troubles to buy an electronic compass from the shelf. But, sometimes you want to understand - or as a teacher - to explain how the compass direction can be turned into digital information. This sensor got its name, because it is made of a few LEGO pieces, the RCX, a magnet, a li...

The aim of this project is to show the nonlinear dynamics of a vertically driven pendulum using Lego NXT. I use this toy in my Nonlinear Dynamics classroom.

Below you find building instructions and a video of the toy.

A pendulum with a fixed suspension point has two eq...

Acceleration is a physical concept that is difficult to understand, although you can feel
it when driving on a roller coaster. This sensor might help kids to realize how
acceleration can be quantified. It got its name, because it is made of a few LEGO pieces,
the RCX, and some n...

In this lesson, students will design and build a wheelchair that can hold a load about the size of a water bottle. Students will build their wheel chairs using the engineering design process and must follow specific design requirements.

This is part of the curriculum unit “Robot...

Eighth-grade students built LEGO balances that were accurate to within half a gram.

Eighth-grade students built LEGO balances that were accurate to within half a gram.

In this activity, a group of people use a number of RCX's to determine one another's birthdays.
See "Birthday Decoder" PDF for detailed instructions.

In this activity, use an NXT brick equipped with two ultrasonic sensors to emulate a Theremin, an electronic instrument. One sensor will change pitch as distance to an object changes, and the other sensor will change volume as the distance to an object changes. The Theremin is meant to be played wit...

In this activity, use an NXT brick equipped with two light sensors to emulate a Theremin. One sensor will change pitch as the amount of light sensed changes, and the other sensor will change volume as the amount of light sensed changes. The Theremin is meant to be controlled with the hands, but any ...

This is a tip on how to remote control a car in ROBOLAB, using the buttons on the NXT.