Showing posts with label Electronics and Robotic. Show all posts
Showing posts with label Electronics and Robotic. Show all posts

Servo Robotics (Oct. 2007)


SERVO Magazine is published monthly for the next generation of robotic experimenters. Servo is about Robotics, Beginner, intermediate or advanced, it doesn't matter. If you're into Robotics, Servo is for you. A definite must-read for anyone interested in building or learning about robots.

INSIDE :

Build A Vex Wireless Joystick Controller
by Daniel Ramirez

Utilize Hollywood-style special effects like slow motion, fast forward, and single step that will bring your robot to life!

The Vex wireless joystick controller shown in Photo 1 features the capability to send joystick
positions and button states to a nearby robot or animatronic device using a Maxstream XBee PRO Wireless UART running at 115200 baud, 8N1. The enclosure shown is made from a large plastic box with an LCD display, two Vex analog joysticks, two keypads, and one potentiometer (motor speed control), along with an array of switches and LEDs. A wireless controller provides a safe way to “train” robots at a distance for various movements. You can also attach the controller to a laptop to run obstacle avoidance and navigation algorithms. If your robot has an arm and/or wrist and gripper, the controller will provide a way to operate these remotely to pick up objects. A future enhancement to the wireless joystick would be to have it sense the tilt of the joystick box itself using XYZ accelerometers (Freescale SARD; see Sources). These tilt angles would then be scaled and converted to servo and motor commands and transmitted to the robot via the XBee PRO wireless UART.

Target Practice For Robotics Class
by Michael Chan

Turn a dusty, old printer into a fun shooting range and learn some basic electronic principles you
can apply to future robot builds.

I miss the old days as a kid at carnivals. In particular, I always enjoyed knocking over the ducks in the shooting range. To mix things up a bit for the students in my robotics class, I came up with the idea of turning an old matrix printer into a shooting gallery. I felt this would be a great training exercise that would demonstrate basic electronic principles and show that you can turn junk into just about anything.

Perhaps you'll be able to teach your kids (or yourself!) some basic skills to apply on future robot projects!

Building An Android Arm - Part 1
by Mark Miller

Building robotic limbs is the double whammy of engineering problems. You need the design to offer strength to be useful, yet lightweight to be practical. Then there’s the issue of compactness. Fortunately, I have managed to come up with some reasonable options that are both affordable and functional. The arm presented here will have three powered joints, with the capability to add a fourth degree of freedom (DOF) later.

I tend to build larger robots, so I need an arm able to lift at least a pound or two. The arm we’ll be building will be about 19 inches long. You will have the option of adjusting the length, however, to fit your specific design.

CAN Networking Miniature Style
by Fred Eady

Last time, I mentioned that I may be able to get my hot little hands on a happen to have in my possession the ONLY Firgelli L12 miniature linear tricky Firgelli miniature linear and all you need to know about how to miniature linear actuator. Well, you’re in luck. As of this very moment, I just actuator in the world. Before we’re done, you’ll have the low-down on the code it into the electromechanical side of your actuator robotic designs.

GPS - Part 1
by Michael Simpson

Each of the modules can be used with your desktop PC, laptop, Pocket PC, or a microcontroller. All the units output the National Electrical Manufacturers Assocation (NEMA) 0183 protocol, as do many GPS modules. Later, I will give you a walk through NEMA 0183 protocol.

M-Bot - Part 2
by Ron Hackett

Last month, in Part 1 of this series, we assembled the chassis and power supply circuitry for M-bot, an autonomous robot which uses the eight-pin PICAXE-08M microcontroller as its only processing power. This month, we will take a detailed look at M-bot’s circuitry. In addition, we will present two simple software routines that will enable M-bot to avoid obstacles, and to respond to visible light levels in its environment. Finally, we will suggest a couple of possible modifications and improvements you might want to consider as you carry out your own experiments with M-bot.

NEEMO 12
by Doug Porter

Space can be a dangerous place and the Moon and Mars are too far away for a quick 911 call. How will NASA deal with medical emergencies in space? That is one question that Dr. Timothy Broderick, MD, a “surgeon with the University of Cincinnati is trying to answer.

Dr. Broderick is part of a research mission called NEEMO 12. NEEMO stands for NASA Extreme Environment Mission Operations, which are analog missions. That is, missions that simulate conditions in space or on another planet to prepare for manned space exploration. Dr. Broderick and a crew made up of astronauts Heidemarie Stefanyshyn-Piper and Jose Hernandez, as well as NASA flight surgeon Josef Schmid and crewmembers James Talacek and Dominic Landucci, spent 12 days this May, at the bottom of the sea. Not as astronauts, but as aquanauts.




NutsVolts Electronics Magazine Oct 07


The first issue of Nuts & Volts was published in 1980. It was originally designed as a newsprint, all advertising publication that was mostly given away. Over the next few years, the magazine continued to grow in readership and advertising, however, not much changed until February 1992 when NV was changed to a tabloid format and started to make the shift to a more content-oriented publication. New editorial features were added along with monthly columns and projects for electronics DIYers. Since then, it has grown into one of the most popular and relevant magazines for the electronics hobbyist in the nation. Beginning with the January 2003 issue, Nuts & Volts was reformatted from a tabloid size back to a standard magazine size. NV now averages about 100 pages and is printed on high-quality paper in full color.

Nuts & Volts is the leading magazine for those seriously interested in electronics. There now remain only a handful of magazines written for the electronics community with Nuts & Volts being the highest readership, longest running electronics publication left in the US today. And we still have readers and advertisers that have been with us since the early 80s.

Nuts & Volts is written for the hands-on hobbyist, design engineer, technician, and experimenter. The diversity of subjects appeals to all levels of experience and spans such topics as amateur robotics, circuit design, lasers, computer control, home automation, data acquisition, new technology, DIY projects, electronic theory, analog, and myriad microcontrollers.

Elektor September 2007


Table of Contents Elektor September 2007

  • Good and Occasionally Favourable
  • PR4401 LED Driver
  • Adding Security to Removable Mass Storage
  • Elektor’s New Website
  • Four-channel logic analyser
  • Tilt Gamepad
  • Ultrasound Receiver
  • SDR and VLF
  • Racing under the Sun
  • FM Superregenerative Receiver
  • Waiting for ZigBee
  • Watchdog in the Meter Cabinet
  • Hexadoku September 2007
  • Philips 60-series NORbits (1968)
  • The Anatomy of HEX files
  • Automating the R8C Starter Kit
  • Profiler Tips & Tricks
  • Green USB Switch

Publisher: Elektor International Media
ISBN-10:
ISBN-13:
Year: September 2007
Pages: 88
Lang: English
Format: PDF
Size: 7.60 Mb


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New Electronics July 24 2007


New Electronics is the only electronics design magazine written specifically to complement the engineer's work pattern