Nxt Compass Sensor Tutorial

Programming the nxt compass sensor to point in the right direction.

Nxt compass sensor tutorial.

This is a guide to using the motors and sensors from the lego nxt set with a parallax basic stamp ii or bs2. The compasspilot is an extension of the differentialpilot class. The compass sensor is housed in a standard mindstorms sensor housing to match the other mindstorms elements. To use the compass sensor from nxt g an additional piece of software needs to have been added to your computer.

Using hitech compass sensor. Using the hitechnic compass sensor with nxt g. The compass sensor connects to an nxt sensor port using a standard nxt wire and uses the digital i2c communications protocol. In the picture to the left you can see the compass sensor is mounted high well above both the motors and computer brick.

However rather than just providing schematics and sample code for the bs2 i ll be providing some theory on how the sensors work as well. I think this is a limit of the nxt g interface not the sensor itself. The nxt compass sensor contains a digital magnetic compass that measures the earth s magnetic field and calculates a heading angle. It implements the same methods but uses a compass sensor to ensure that the pilot does not deviate from the correct angle of robot heading.

The essentials are things every nxt programmer should know. But if you are using a port splitter or a remote nxt or rcx it may be of interest. A brief introduction tutorial part 2 duration. Put a compass equiped ro bot on a turntable and spin the turntable.

Chad cardwell 414 242 views. It s important to do these exercises not just assume you get it the advanced section is for reference purposes. The current heading is calculated to the nearest 1 and refreshed 100 times per second. It needs a hitechnic or mindsensors compass sensor plugged in to one of the sensor ports.

This tutorial for lego mindstorms nxt is divided in two sections. Since the us sensor block returns only a single byte the sensor returns the heading angle divided by two currently. The nxt sensor ports support three different types of sensor. Program using labview lego.

The current heading is calculated to the nearest 1 and refreshed 100 times per second. At brickfest there was a wonderful demo of the compass sensors. Using nxt components with a micro controller.