This dual-platform digital temperature sensor can be calibrated to measure both Celsius and Fahrenheit using either the LEGO® MINDSTORMS® Education NXT or LEGO MINDSTORMS Education EV3 platform. The sensor is compatible with the intelligent brick from either platform and requires either the LEGO MINDSTORMS Education NXT software v.2.1 or the EV3 software. Download software, curriculum and eLearning for LEGO MINDSTORMS EV3 for free.Jump to: navigation, search NXT → Sensors Overview For ROBOTC NXT Sensor functions, check out the NXT Sensor Functions page! For information and examples on using I2C sensors, head over to NXT I2C Digital Sensors page! The NXT Touch Sensor has 2 states, pressed or unpressed. In code this is represented with a 1 for pressed, and a 0 for unpressed. There are no other states for this sensor. Below is a simple program that keeps your program from running until you press the Touch Sensor. The NXT Light Sensor has a range of states between 0 and 100.
The lower the number, the darker the reading is. The higher the number, the lighter the reading is. Below is a simple line-following program that uses only one NXT Light Sensor. The NXT Sound Sensor has a range of states between 0 and 100. The lower the number, the quieter the reading is. The higher the number, the louder the reading is. Below is a simple program that maps the Sound Sensor reading to the motor speeds. The NXT Ultrasonic Sensor has a range of states between 0 and 255. This number is representative of the current reading in centimeters. However, a reading of 255 means that the current sensor reading is out of range. This is a "range error" and means that the echo is not being read back (looking down a long hall for example). A reading outside of these numbers indicates that there is no sensor attached or some error with the connection.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 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 Angle a sensor that measures angles with a potentiometer 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 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 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 NXT News Yet another NXT information sharing sites Lugnet Robotics Newsgroup Great newsgroup for LEGO Robotics Philo's Page A great Mindstorms resource site 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 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 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 Learn more about the LabVIEW for LEGO MINDSTORMS NXT book