Lego Mindstorms
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There are two NXT bricks on this robot, one for the movement and one controlling the pen. Both communicate via bluetooth and are powered by rechargeable batteries, permanently plugged to battery chargers from the ceiling. Three motors on the edges turn the spools and move the robot along the ropes.
Nils Völker - Robotics - Dotje - Programming and Construction
This is a ball-shaped "robot" based on a Lego Mindstorms NXT. It moves in any direction by simply rotating the internal mass horizontally and vertically. At the moment it's remote controlled via Bluetooth from a second NXT. So to be precise it's actually not a real robot more kind of a Rolling-Orbital-Bluetooth-Operated-Thing (to make it short: robot). But seriously: It's planned to implement the ability of moving autonomously later on. And to answer the most obvious question right away: No, there is no deeper sense or purpose, but a lot of fun driving it.
Nils Völker - Robotics - Spherical Robot
Track your environment with the new HiTechnic Barometric Sensor. Create a weather station or program your own aircraft style altimeter with the HiTechnic Barometric Sensor. The Barometric Sensor is a sensitive barometer that measures atmospheric pressure as well as air temperature.
Products
LEGO MINDSTORMS ® NXT Robotics enables students to discover Science,Technology, Engineering and Mathematics in a fun, engaging, hands-on way. Combine the LEGO building set with software and curriculum activities to have your students design, program and control robots.
Moore Educational
LEGO 9V Technic Motors compared characteristics
The speed of 43362 motor is about 12 % lower than speed of 71427. Though this is in the range of variations measured by Steve Baker among a bunch of nine 71427 motors , my measures on three 71427 and two 43362 showed the 12 % difference between the two groups. The RC train motor had a poor efficiency and delivers little torque at low voltage (it was not able to move under 6V loaded with 0.85 N.cm). The PF train motor has a much improved efficiency, even better than the old 9V train motor. Speed and current vs. torque Synthesis charts
I've changed the format since the original version... on this page there is a brief description of controllers, actuators, sensors and generally-useful elements. Next to each item is a link ("sets") which links to a page which gives a non-exhaustive list of the retail/service/Dacta sets which contain that item. There are a variety of touch sensors available: #9888 is the original Dacta sensor. It is yellow and has (I believe) the cable permanently attached.
Mindstorms add-ons
Robótica Personal y Educativa: Nueva caja de recursos 817 piezas LEGO Mindstorms Education NXT
Esta nueva caja de recursos 817 piezas LEGO Mindstorms Ref. 9695 NOVEDAD 2010 contiene una amplia gama de elementos ( 817 piezas LEGO Technic ) que te permitirán construir y programar robots LEGO MINDSTORMS Education Ref 9797 o Ref 9000) con más funciones que nunca. Incluye una gran cantidad de elementos especiales, como correas, conectores exclusivos, un tornillo sin fin, elementos estructurales y otros elementos LEGO, como vigas, ejes y conectores. Todo el contenido se presenta en una caja de plástico resistente con una tapa transparente que permite ver el contenido, así como dos clasificadores/organizadores de piezas también de plástico.
