Tag Archives: sensor

Using the TCS230/TCS3200 Color Sensor with an Arduino

TCS3200 Color Sensor Module
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In this article I will endeavour to show how to detect colours with an Arduino connected to the TCS230/TCS3200 colour sensor.

The TCS3200 colour sensor can detect a wide variety of colours based on their wavelength. This sensor is specially useful for colour recognition projects such as colour matching, colour sorting, test strip reading and much more.

Introduction to using the BMP180 barometric sensor with Arduino

bmp180 barometricsensor
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The BMP180 barometric sensor (model GY-68) in the following two images is a very small module with 10mm x 10.1mm (0.039in x 0.043in) footprint. This guide is also applicable for other similar barometric sensors.

Using the HC-SR04 Ultrasonic Sensor with Arduino

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The working principle of an ultrasonic sensor is simple and use high-frequency sound waves that are evaluated when the sensor received back the waves. To determine the distance between the robot and object, the sensor measure the elapsed time between sending and receiving the waves.


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Imagine takig control of your NXT robot from every kind of Web Enabled device: PC, MAC, laptop, netbook, Android-powered smartphone or tablet, iPhone, iPad, iPod Touch.  You can read data from the NXT’s sensors, or command it while you’re away through a great-looking dynamic webpage.  Control your NXT robot from everywhere in the world.

NXT2WiFi, Webserver Sensor – Getting Started Guide

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My NXT2WiFi, Webserver module for LEGO® MINDSTORMS® NXT robots arrived a couple of weeks ago from Daniele Benedettelli. I finally got around to unpacking this new sensor today. In fact the weather here today made the decision very easy.

I’m the Winner of a Dexter dIMU Sensor

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The Guy NXT door, (Aswin Bouwmeester) had a competition where you could win a LEGO® Mindstorms NXT dIMU sensor from Dexter Industries. It is the same sensor sent to Aswin for evaluation purposes, from Dexter Industries. Aswin recieved it for free for testing, and is probably is the best tested sensor available.

Use a Wii-Nunchuk as an NXT Sensor!

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The Wii Nunchuk is designed to work together with the Wii Remote on the Wii console. Contoured to fit perfectly in your hand, the Nunchuk adds extra buttons, an analogue joystick, and additional motion-sensing control to expand the game play possibilities. It is also an I2C type device which makes interfacing to the Lego Mindstorms NXT easy. You can pick-up a Wii Nunchuk from eBay for under $10, and a pack of 5x NXT Compatible Male Plug from Mindsensors for $5.95. In essence a new NXT Sensor/Controller for under $20.00.

Dexter Industries NXT dGPS Sensor

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Dexter Industries have released the dGPS Sensor, which is a GPS Sensor for Lego Mindstorms NXT Robotics. The Dexter Industries dGPS Sensor provides GPS coordinate information to your robot and preforms calculations on the navigation information received that can be used to navigate to your target coordinates. The sensor provides  real-time latitude, longitude, time, speed and heading information to your robot.  It also has powerful navigational calculators that can be used to navigate to target coordinates.

NXC Library for the 8-Input RCX ‘Type Touch Sensor’ Mux

8x Input RCX Type Touch Sensor Mux
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I have built a Lego Mindstorms NXT, 8 Input RCX Touch Sensor Multiplexer for use with the old style RCX Touch Sensors with full construction details here in an Earlier Post. I finally got around to nutting out a Driver Library for use with John Hansen’s Lego Mindstorms NXT Programming Language NXC: Not-eXactly-C.

Testing the NXT Laser Target Sensor

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Testing my Mindstorms NXT LASER Target Sensor with 40mm P.V.C. Pipe Tubes wrapped with 3M Scotchlite Reflective 8910 Silver Fabric.

Mindstorms 8 Input RCX Touch Sensor Multiplexer

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I have built a Lego Mindstorms NXT, 8 Input RCX Touch Sensor Multiplexer for use with the old style RCX Touch Sensors. I personally think these retro Touch Sensors are far, far easier to use in models due to their physical size. I really don't know what the Lego Designers where thinking when they designed the NXT Touch Sensor!

I have one of Mindsensors' new TouchMux's, but it doesn't work very well with the legacy RCX style Touch Sensors. 

Testing the Mindstorms CruizCore Sensor MEMS

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My New Mindstorms NXT CruizCore Sensor arrived today after a bit of a wait, but in time for my Birthday. The CruizCore® XG1300L is a digital Sensor containing MEMS gyroscope and accelerometer sensors. This device is compatible with the LEGO® Mindstorms NXT kit. The CruizCore® XG1300L processes the sensor signals eliminating the most of the significant errors associated with these type of inertial devices. This results in the sensor outputs from the CruizCore® XG1300L to be near-free of these errors and can be used by the NXT, without further processing in many types of applications.

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