Als je een rcx hebt of een nxt kan je game's maken en je kunt er ook veel robots mee maken Maar geen nood wie dit nog niet kan hebben ze een oplossing Dit is een lego paket met alle onderdelen in dat je nodig heb om robots te maken. Hier heb je een foto's van alle onderdelen die er in zit dit heet : Robotics Inventoin system .. En natuurlijk kun je er ook onderdelen bij doen en nieuwe robots maken Hier heef ik een paar foto's van kinder en mensen die dat hebben gedaan en gemaakt hebben. Heb je nu genoeg info om dingen te maken ? ja dan oké, nee dan moet je even wachten een paar dagen dan zet ik er weer een bericht op . Heb je indeeën of instpiratie nodig kun je me altijd mailen naar brecht.2000@hotmail.com
En dit is een lego insect! Wil je meer foto's ga da naar google en typ in : lego rcx en wil je deze foto's hebben voor je site of om afte drukken?, ga dan naar de 4rde pagina en zoek tot je heb vind.
One of the results of the Smeagol laboratory course of winter semester 2004/2005 is the Mars Rover.
The general idea was to create a robot with features that would give it independence, capability of sensing temperature, humidity and light, ability to send video data and communicate with a base station that would acquire all the data.
The platform used for this specific project is the Lego RCX unit.
The Lego RCX Unit
The RCX unit had to undergo slight change in order to meet the requirements of the set tasks. Namely, the already implemented IR interface used for communication between the RCX and a PC, was a limiting factor both in means of distance and position and it had to be switched to a radio communication tool. We had some difficulties for acquiring the RCX data for there is no official information about the context and schematics and the available information is spread on the Internet.
Bluetooth seamed to be a wise choice over the IR owing to its more reliable communication and longer range. The decision fell on the Bluetooth module (BT-232) as it can operate on the baud rates of 2400 and 4800, which is the baud rate supported by the Hitachi micro controller inside the RCX. These modules operate on RS232 levels; can be directly connected from the serial ports of the PC and require no drivers. The last feature of the BT-232 was crucial since there is an evident lack of memory space on the RCX.
The heart of the Lego RCX unit is the Hitachi H8/3292 microcontroller, an 8-bit microprocessor with 16-bit address space, which runs on 16 MHz.
The Hitachi microcontroller inside the RCX has a serial port that works on the TTL level (0-5V). In order to interface this serial port with a PC all communication was to be done on RS232 levels (+12 to -12V). We designed a TTL to RS232 voltage converter to enable a universal RS232 interface with D-Type 9 pin connector.
Interface programming aspects
There are two utilities available; one for downloading the firmware onto the RCX and the other to download the program. These utilities work at 2400/4800Baud with odd-parity bit on. The command messages are sent at 2400Baud with no parity. Since, the program and the firmware are downloaded once, it was thought to keep an existing IR tower connection and use that for downloading these two stagnant things.
Serial command messages
There is an external 32 kB of RAM in the RCX. There is an on-chip 16 kB ROM containing the driver that runs at the boot-up. The on-chip ROM is extended by the firmware. Both driver and the firmware accept and execute the command messages sent to RCX.
The command messages to various sensors, motors, sounder, LEDs etc on the RCX are sent via serial command packets. The format of a packet is quite simple with a header at the start, machine code and a checksum at the end. In the machine code there is an 8-bit op-code for a particular instruction followed by the instruction meaning. After the reception of the command packet, the RCX sends back an echo message telling that it has got what it was asked to do and then executes the command.
Serial port programming
The serial port of the PC is programmed to send the command messages. The baud rate set is 2400Baud with no parity bit. The command messages are sent as byte codes over the Bluetooth. The command messages are appropriately designed from the op-code reference available at http://graphics.stanford.edu/~kekoa/rcx/index.html.
Gateway server
The Mars Rover's control is designed on traditional client-server architecture. The gateway (server) maintains connections over 433 MHz radio to the Mote for sensor data, over Bluetooth to the RCX for controlling the Rover and over USB to the camera's base station functioning on the 2.4 GHz range for images. On the other side, the control software (client) has a TCP connection to the gateway through Ethernet-based LAN.
The control software has capability to show the sensor data and image from the Rover's camera, and to give commands (stop, drive, turn left, etc.) to the Rover. Due to problems in streaming the video over Internet, the camera's base station was connected directly to the PC running the control software. All the programs are running in Windows.
Wireless Camera
Another interesting point might be the wireless 2.4 GHz camera, used both as a tool for visual guidance and a proof of the functionality of the sensor output driven and program controlled Mars Rover.
An independent Visortech Spy Cam Profi 2.4 GHz wireless camera was used in order not to overload the bluetooth communication for the sensor gathered data and the remote guidance. The other side of the wireless camera and the bluetooth communications channel is on the nearest base station. There was obvious interference on the video transition from the bluetooth module, which remains as a task for further improvement.
Mica2 motes
The idea of using the mote was to have an additional back-up wireless communication as well as the access to all the sensors already included in the mote. In that sense, the video channel might be substitute with the mote radio channel, giving the possibility for a cheaper solution for camera (ordinary USB web-cam). All three wireless channels mean higher power consumption. This implicates more space for batteries or shorter refuelling period.
The Mica mote, currently available from Crossbow Technology Inc, is based on an The current draw is approximately 5.5 mA while active and less than 20 µA in sleep mode. Clock speed is set at 4 MHz based on an external crystal.
An on-chip 8-channel 10-bit analog-to-digital converter (ADC) is also available (and can be used for differential channels as well). The ADC offers a simple interface for connecting sensors that a user might want to add to the CotsBots platform. In addition, several interrupt lines are also available for sensors.
The domestic robotics niche will not begin with vacuuming robots or lawn-mowing robots in our opinion. First, a community of creative roboticists will be able to invent using robots as a natural, robotic extension of the early Apple II's. The personal rover is our first step in this process, and a complete website describing this project is available here.
We have been frustrated that many off-the-shelf servo and motor controllers use proprietary code running on the PIC chip to which the buyer often does not have access. Cerebellum is a serial-downloadable I/O controller that controls several servoes, two DC motors, and has several digital and analog input lines. The Cerebellum is much less expensive than commercially available controllers. Most importantly, the schematics and all of the source code for Cerebellum are freely available. Visit the official Cerebellum website for details. 3Dmbot, shown on the left, uses one Cerebellum and one CMUcam board as its processor suite.
One problem with inexpensive robots is that they are just not interesting enough, chiefly because they cannot really perceive the world. CMUcam is our first try at creating an inexpensive and powerful sensor for small, cheap mobile robots (and up). CMUcam can do many kinds of processing on the fly, including tracking colorful objects. Best of all, you can purchase one for about $100 from several distributors who have licensed this product and are selling it to the hobby robotics community. And now we have the CMUcam2 and most recently the CMUcam3- which offers fully programmable embedded vision. Go to the CMUcam website for more.
We need inexpensive and fun robots. What if you could build a robot that could be strapped to a Palm Pilot, or a GameBoy or TI Calculator for that matter? We have created one such robot, using exclusively off-the-shelf parts. The novice roboteer can build our pprk in about two hours after acquiring about $120 in parts. We have a website where you can find the bill of materials and step by step pictures and instructions for building your own pprk. The site also provides software and a few simple demo programs for your enjoyment.
Robotic technologies can bring pleasurable and effective learning to museum environments. This project is the effort of Marti Louw, who designed, fabricated and tested a series of interactive recycling stations at the Pittsburgh Children's Museum. Toy Robotics Initiative technologies enabled this device to detect the presence of children and respond with recorded sounds and speech. Here is a PDF slideshow describing the project design and evaluation, and "Designing for Delight: The Role of Wonder, Discovery, Invention and Ingenuity in Exhibit Design" is Marti's thesis document describing her rhetorical approach to museum exhibit design.
Can two lego RCX bricks easily communicate over infrared? This question has a complex answer, and Rachel Gockley has worked out that answer. In the process, she has designed a remote-controlled RCX demonstrator, which is pictured at left. See this project's web page for more details, including source code written in NQC.
camera footage
The following Mpeg movie shows the RC lego remote-controlled:
Suppose we can make a miniature camera whose motion can be controlled by a human. Put this camera in a colony of insects, and the human will gain a whole new perspective on the insects and their biology. Blow up the image to scale down the human appropriately, and amplify the insects sounds as well, and you have a complete telepresent experience that is incredibly exciting and educational at the same time. Technically, camera technology, optics and manipulation are well up to the task. A complete insect telepresence exhibit is now being constructed for the Carnegie Museum of Natural History's entrance, in collaboration with the Human-Computer Interaction Institute, by Stacy All, Angela Demke and Ben Shamah.
camera footage
The following QuickTime movies were taken with our first prototype:
The Toy Robots Initiative has performed research into models for believable robot agents by creating comedy improv robots. Now, Illah is working with a major toy manufacturer to instill their toys with emotional models that improve their robot-human interaction. A paper is available about the robot comedy improv project here.
A long-term goal of the initiative is to invent, prototype and demonstrate mechanisms for robot locomotion that are far superior to standard wheeled and legged approaches. If you want robots that can climb stairs and curbs, negotiate hilly terrain and operate exclusively using on-board power, then traditional wheels and legs are unsuitable. Ben has several good ideas and, together with Illah and Garth and others, is pursuing robots that roll, hop, bounce, skitter and even slide. You can view much more information about the hopping robots from Garth's website. Pictured to the left is Gyrover, a self-contained robotic wheel designed originally for lunar exploration. Click here for more information on the Gyrover Project.
Sports and recreational equipment are particularly enjoyable and healthful when they combine cardiovascular training with motions that are new and exciting for people. We have applied the bow leg technology (patent pending) to human augmentation systems. We have prototyped the BowGo series of jumping devices, enabling humans to jump higher and longer than is otherwise possible. Our Bowgo website is now open to the public. Current records include 42 inches of ground clearance for standing jumps as well as 9 foot jumps across 2 foot high obstacles. If you would like to learn more about this exhilarating human hopping machine, contact Ben or Illah.
Office Plant #1 (OP#1) is an exploration of a technological object, adapted to the office ecology, which fills the same social and emotional niche as a plant. OP#1 monitors the ambient sound and light level, and, employing text classification techniques, also monitors its owner's email activity. Its robotic, sculptural body, reminiscent of a plant form, responds in slow, rhythmic movements to express a mood generated by the monitored activity. OP#1 is a new instantiation of Michael Mateas and Marc Bohlen's idea of *intimate technology*, that is, technologies which address human needs and desires as opposed to technologies which meet exclusively functional task specifications.
The challenge here would to make a robot that can perceive its human "master," then give it the locomotion it needs to follow that human, over ledges, through grass, and ideally even up and down stairs. The direction locator technology is achievable using audio, radio, or color. The locomotion is harder, but Ben has several good ideas and expertise in this area. Imagine a robot that follows you on your run or hike; it can carry your keys for you. Imagine imbuing these robots with smart behaviors so that when they are next to two or more of their own kind, their behavior changes appropriately and interestingly.
The goal here would be to produce an inexpensive, low-power wireless camera that you could put on top of just about anything, complete with a viewing station. A 3-D version would be even better. Simply taking the system and putting it on remote control would make R/C races more exciting; there's a large hobby market that conducts R/C car races, this would be a wonderful telepresent step for them to take [they would be forbidden from looking at the car, only at the camera's output].
Ü dit is een rcx
Wil je meer foto's ga da naar google en typ in : lego rcx en 
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by:legobrecht
