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Ember Developer Blog (2008)

WiFi Channel Usage Update

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Submitted by skip on 8 December 2008 - 8:45pm.

ZigBee and WiFi Update

I had previously posted an entry on ZigBee and WiFi with some data on channel usage for WiFi from some of my travels. Having recently completed a trip to Asia I wanted to fill in some scans from this region since it was not previously represented.

I have now completed 10 larger scans in cities. This includes 3 in the US, 2 in Europe, 4 in Asia and 1 in Australia. The data is surprisingly consistent showing WiFi usage heavily targeted to channels 1, 6 and 11. The usage on these 3 channels varies from a low of 72% of the access points to up to 88%.

ZigBee Code Space

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Submitted by skip on 5 November 2008 - 3:07pm.

I have heard continuing discussion about code size and its growth over time in the ZigBee stack. As a stack provider, Ember has tracked code size over time since our conversion from a proprietary network stack to the ZigBee stack. Our initial stack was ZigBee 2004, then ZigBee 2006 and then ZigBee PRO. I thought I would share some of this data from the past 3 years.

ZigBee and WiFi

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Submitted by skip on 22 August 2008 - 8:54am.

It has been a while since I have posted here – must be the summer doldrums. It is time to get more regular in the updates and generate more comments around these postings. All of our customers are now moved onto this portal instead of using e-mail so the portal is getting plenty of traffic.

ZigBee Smart Energy Certification

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Submitted by skip on 22 May 2008 - 10:05am.

We completed the ZigBee Smart Energy Certification last week in Pleasanton California. This event was the end of a testing cycle that started in December 2007 after the ZigBee Meeting in San Diego. We held testing events in January, March, 2 in April and then the certification in May. Each of the Companies involved had to attend all of these events to become certified so it is quite an investment of time. We had a good mix of all the types of devices within the SE specification including 6 Energy Service Portals, 3 meters, 3 programmable

Ember Developer Portal

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Submitted by Support on 25 April 2008 - 2:13am.

Welcome to the Ember Developer Portal. We aim to provide a comprehensive source of practical ZigBee information for Ember developers and for the ZigBee community as a whole. Please send us feedback.

You can search for specific topics from the search bar on the upper right side of the page.

The ‘Primary Links’ menu on the right hand side details the main areas of the site, which covers the following sections:

Documentation – contains documentation from our stack release and application notes on specific topics
Download – download area to access current releases of the EmberZNet PRO stack and other development software
Change Notifications – contains change notifications regarding all of Ember’s products
FAQs – contains Frequently Asked Questions on various topics
Blog – Skip’s ZigBee blog for the latest updates
Support – customers can ask questions to our support team as tickets, and review ticket status from this page
Training – a good place to start for introductory information about ZigBee and EmberZNet.

Note that some sections may require you to be logged in, such as the software downloads. These sections are generally restricted to existing Ember customers/partners/distributors. If you believe you should have access but do not have a username and password for this site, please contact portal-logins [at] ember.com to request access. (Be sure to include your contact information and the name of the organization you represent.)