Learn more about the Extreme NXT book

Homebrew sensor projects for the RCX and NXT

Construction projects for the RCX and NXT

The slides from my Mindfest Homebrew Sensors Workshop

Recreation of Grey Walters Machina Speculatrix

A hackers guide to LEGO Mindstorms Vision Command

Sound Plans for building a Sound Sensor for the RCX

 

Michael Gasperi's LEGO Mindstorms NXT/RCX Sensor Input Page

 

CdS Light A cheap and simple Light Sensor

Differential Light Sensor that outputs the difference between two light sources

Post-in-ring A way to build an all-around Touch Sensor

Almost Ultrasonic Motion Detects motion using the RCX sound generator

Motor Speed/Torque Uses the motor's back EMF to measure speed

Pressure Measure air pressure

Angle a sensor that measures angles with a potentiometer

My Homebrew RCX/NXT Sensors

My Homebrew RCX Only Sensors

Galvanic Skin Response Build a Lie Detector

Input Mux and Color Expand the RCX inputs or build a red, green, blue color sensor

Rotation A mechanical rotation sensor based on Touch Sensors

Other Hackers Sites - Mostly Homebrew Sensors

Sven Horstmann's Line Tracking A specialized sensor for line following

John Barnes' Ultrasonic Range Measures distance for the RCX

Brian Stormont's Sensors A variety of homebew sensors

Dean Husby's Sensors A variety of homebrew sensors

ESG's Sensors A variety of homebrew sensors

Ralph Hempel's RCX Light Sensor Tricks Ways to make the Light Sensor work better

Robert Munafo's Motor Velocity Motor back EMF

Henry Chea's Passive IR Detect body heat

Ben Jackson's Train Axle Use an RCX Light Sensor to detect train position

Philippe Hurbain's Sensors A great site for both NXT and RCX Mindstorms information

Boulette's Sensors A huge Mindstorms site

Links, Resources, and where to buy

Heinrich Poetter's Rotation A rotation sensor using read switches

Greg Blount's Pyroelectric Low cost heat sensor

Rainer Balzerowski's IR Distance

Mark Dresser's Hall Effect Also a rotation sensor

Science Museum of Minnesota's Heart Monitor Mostly plans

Rob Limbaugh's Cut Electric Plates How to make inexpensive RCX connectors

LLoyd Gordon's Double Rotation Control slip between two wheels

General Purpose The basic RCX powered sensor interface

 

LEGO Mindstorms The mother site

NXT Developer Kits Download and read these PDFs now

NXT-G Add-On Software And Updates Keep your NXT software up to date

NXTBot Blog One of the NXT information sharing sites

TheNXT Step Blog Another of the NXT information sharing sites

Nxtasy.org NXT News Yet another NXT information sharing sites

Lugnet Robotics Newsgroup Great newsgroup for LEGO Robotics

Philo's Page A great Mindstorms resource site

Links And Resources

LEGO Education Store Where to buy extra NXT parts

LEGO Shop at Home Where to buy all kinds of LEGO stuff

HiTechnic Aftermarket Sensors Makers of LEGO sensors for sale

Mindsensors Aftermarket Sensors Makers of LEGO sensors for sale

Techno-Stuff Aftermarket Sensors Makers of LEGO sensors for sale

RCX Light Sensor Internals The guts of the RCX Light Sensor

RCX Rotation Sensor Internals The guts of the RCX Rotation Sensor

Purchase LEGO Mindstorms NXT Where to buy the NXT

Brickshelf General LEGO information

LEGO Kit Inventories Lists of all the parts that come in a LEGO kit

LEO CAD Great tool for drawing LEGO creations

Russell Nelson's Page The mother of all LEGO Mindstorms hacker sites

Doug's Rotating Electrical Connection Uses a telephone cord connector

Visual Basic - Bluetooth
Tutorial for remote control of the  NXT

Sivan Toledo's NXT Projects Expand the NXT with the I2C bus

Larry Barello's Sensor Article from Servo Interesting site about LEGO sensors

Homebrew NXT-G Blocks

The Simon Game using NXT-G programming language

Plasti-Bots Cybermaster touch sensor expander for NXT

Use an IBM PC PS/2 Keyboard as an input device

CdS Light Sensor With active LED control and an NXT-G block

A DAC interface with RC Servo Motor control and an NXT-G Block

An interface for a Numeric Keypad used as an input for the NXT

Matrix Interface that connects 23 switches to one input

A PIC Microcontroller Interface for the ultimate intelligent sensor

Anders' Mindstorms Site has an RFID, Magnetic, and more NXT Sensors