|[ Also see: Wireless
Interesting articles on ZigBee, IEEE 802.15.4 and related technologies.
Standards: Where does ZigBee fit (PPT, 10/04) The Wireless
Market, What is the ZigBee Alliance? Why do we need ZigBee
technology? Applications, Who is supporting the ZigBee Alliance?
Protocol Stack Features...
and Bluetooth: Competitive or Complementary? (9/02, PDF) Air
interface, Power Considerations, Timing Considerations, Initial
Enumeration, Cost Standpoint, Solution Prices, ...
Wireless Standards: Understanding the Role of IEEE 802.15.4 &
ZigBee in AMR & Submetering (2003, PPT) AMR &
Submetering Today, Wireless Standards Landscape, IEEE 802.15.4 Key
Features, ZigBee Key Features, Implications & Opportunities.
the Buzz on ZigBee (1/04, PDF) What is the ZigBee Alliance? The
ZigBee Alliance Solution, How is ZigBee related to IEEE 802.15.4?
Why do we need ZigBee technology? History Who is supporting the
ZigBee Alliance now? The Wireless Market, Wireless Network
Evolution, Frequencies and Data Rates, ...
with 802.15.4 and ZigBee (3/04, PPT) IEEE 802.15.4 Basics, PHY
Performance, IEEE 802.15.4 MAC Overview, Data Frame format,
Acknowledgement Frame Format, MAC Command Frame format, Beacon Frame
format, ZigBee is Mesh Networking, Motorola 802.15.4 / ZigBee
solution, System Simplicity and Flexibility, 15.4/ZigBee and
Bluetooth, Home/Light Commercial Spaces, Industrial/Commercial
Wireless Control That Simply Works (4/04, PDF) Introduction,
IEEE 802.15.4, ZigBee, Comparisons, Applications, ZigBee Alliance,
will require patience (12/04) For the backers of ZigBee
technology, this is a week to celebrate. After years of talk and
work, the ZigBee Alliance has completed its specification, a move
that will allow developers to take the word "pre" off
their ZigBee chips and systems. Developers and ZigBee backers,
however, shouldn't celebrate too long. While today marks a big step
for the ZigBee community, it's also the first step in the long
ZigBee adoption process - a process filled with technical and
business challenges and a process requiring extreme patience by
ZigBee backers and developers.
Bluetooth; ZigBee is here (3/04) New wireless standard could be
lower-cost alternative for wireless sensing and control. Bluetooth
wireless technology has received a lot of attention for wireless
connectivity. Now it's ZigBee's turn. ZigBee™ is the name of an
alliance of companies formed around IEEE's 802.15.4 specification
for low data rates in the Industrial, Scientific and Medical (ISM)
radio bands. The ZigBee protocol promises to provide longer battery
life and to be a lower-cost alternative to Bluetooth for wireless
sensing and control applications.
markets thrive (5/04) A little over five years ago five
companies introduced a new concept: a standards-based wireless
technology for replacing wires everywhere. Ericsson, IBM, Intel,
Nokia and Toshiba announced Bluetooth. Now, after five years of fits
and starts Bluetooth suppliers have shipped more than 50 million
single- and multichip Bluetooth solutions, and Agere Systems,
Microsoft and Motorola have joined the five founding companies in
the Promoter Group. Other technologies have emerged to take on new
tasks prompted by the concept of wireless connectivity. ZigBee is
targeting opportunities in industry and home automation; WiMedia,
high-bandwidth applications such as USB and Firewire (IEEE 1394)
with ultrawideband, known as UWB. Finally, Philips and Sony have
announced an RFID-like technology called near-field communications
(NFC) that is intended to facilitate secure connections between
devices (possibly using one of the other wireless connectivity
the PIC18F Microcontroller in ZigBee applications (4/05) The
ZigBee wireless protocol is a robust, new network protocol
standardizing wireless RF communications in license-free radio
bands. Unlike many of the other protocols, ZigBee is primarily
designed for low-speed sensor and control devices with low cost and
low power in mind. Eight-bit microcontrollers are ideally suited to
implement ZigBee-based applications, due to their simplicity and
low-power features. The PIC18LF4620 8-bit microcontroller is an
ideal choice to implement the ZigBee wireless protocol. With 64
Kbytes of self-programmable Enhanced Flash memory, nanoWatt
Technology which provides up to seven low power modes to reduce
power consumption, and an SPI interface, the PIC18LF4620 from
Microchip is well capable of handling the ZigBee software stack.
is ZigBee needed? (10/03) There are a multitude of standards
like Bluetooth and WiFi that address mid to high data rates for
voice, PC LANs, video, etc. However, up till now there hasn't been a
wireless network standard that meets the unique needs of sensors and
control devices. Sensors and controls don't need high bandwidth but
they do need low latency and very low energy consumption for long
battery lives and for large device arrays... The ZigBee Alliance is
not pushing a technology; rather it is providing a standardized base
set of solutions for sensor and control systems...
||IEEE 802.15 Working Group for
WPANs The IEEE 802.15 Working Group develops Personal Area
Network consensus standards for short distance wireless networks;
USB for HomeRF-Lite (PPT) 'RF-Lite' - a Solution for Low
Data Rate Applications.