simpy
simpy
Magnetism: Electromagnetism: An electric motor in 10 minutes Fun with High Voltage A 10 minute railgun A 30 second motor Listening to magnetism Electrochemistry: A plastic hydrogen bomb Building your own solar battery Building a Hydrogen Fuel Cell Homemade Batteries Collecting Chemical Elements Radio: A quick and simple radio Building a radio in 10 minutes Build a portable crystal radio A radio out of household items A simple AM transmitter The Three-Penny Radio Thermodynamics: Aerodynamics: A Bernoulli levitation ball A Homemade Vacuum Pump A Classic Propellor Toy Light and optics: Simple laser communicator Make a solar hotdog cooker A solar powered marshmallow roaster Biology: Extracting DNA in your kitchen Mathematics: Kaleidocycles A Geodesic Dome A Homemade Microgram Balance Computers and Electronics: A Computer Controlled Transmitter A Free Space Laser Data Transmitter Fun With Solderless Breadboards A Simple 1 Watt Amplifier
SD (software-defined) radio receivers use a bare minimum of hardware, relying instead on their software capabilities. This SDR project demonstrates what’s achievable, in this case a multi-purpose receiver covering all bands from 150 kHz to 30 MHz. It’s been optimised for receiving DRM and AM broadcasts but is also suitable for listening in to the world of amateur transmissions.
www.nti-online.de/diraboxsdr.htm
www.sdradio.org
sourceforge.net/projects/drm
www.g8jcf.dyndns.org
What is ZigBee? What is IEEE 802.15.4? How is ZigBee different from other wireless standards (e.g. Bluetooth)? What are the real-life applications of ZigBee? How reliable is the data delivery? How long is the battery life? What are the cost considerations for ZigBee implementation? How long is the Transmission Range? How high is the Data Rate? What is the Data Latency for ZigBee Networks? How large/small a ZigBee Network can be? How is the Data Security provided? What is ZigBee Stack? What Subunits can be on a Node? What is called ZigBee Application? What are the ZigBee Device Descriptors? What is ZigBee Device Profile? What is ZigBee Stack Profile? What are the ZigBee Device Objects? How does a Device/Service Discovery process work? What are the Clusters, ZigBee Binding and Binding Table? How is Addressing and Messaging done in a ZigBee network? What types of ZigBee Devices exist in a network? What Topologies are supported by ZigBee? What is ZigBee network Gateway?
Zigbee/802.15.4 notes | http://www.google.com/notebook/public/17894154587286929730/BDReISgoQ0uGguawk
Sections:
* Rabbit
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* vs 6LoWPAN
* 802.15.4
* Other
* Google searches
* Texas Instruments
* Atmel
* iDigi
* Commissioning
* History
* FAQ
* Smart Energy
* Open Source Code
* Miscellaneous
* The End
Are there yet ZigBee products on the market?
Yes, there are. Some implement an actual ZigBee stack while others feature a ZigBee ready platform like EmberNet.
Examples in the residential space include Control4 (lighting), Eaton (home automation), Golden Power Manufacturing (sprinklers and thermostats), Hawking Technology (home gateways), Kalirel (heating), Mija (fire extinguishers), Nice (shutters), and TSC Systems (home automation).
Examples in the commercial space include Mija (fire extinguishers), Philips (lighting), Siemens (building automation), and TAC (building automation).
The Pioneer Village complex comprises 28 buildings on 20 acres housing over 50,000 irreplaceable items of historical value, restored to operating order, arranged in groups and also in the chronological order of their development.
There are 12 historic buildings around the circular "green". There's a Frontier Fort, a real honest-to-goodness Pony Express Station, an Iron Horse, and a home made of sod. There's a general store and a toy store, chock full of all the goods from yesteryear. An original art collection including 25 Currier and Ives prints, 23 Jackson paintings, and the largest single collection of Rogers statues.
You can ride a priceless steam carousel, see 17 historic flying machines and marvel at 100 antique tractors. See the world's oldest Buick, a 1902 Cadillac and a 1903 Ford, both designed by Henry Ford, plus 350 other antique cars, all displayed in their order of development.
