Best Zigbee Devices - RF Cafe Forums

RF Cafe Forums closed its virtual doors in late 2012 mainly due to other social media platforms dominating public commenting venues. RF Cafe Forums began sometime around August of 2003 and was quite well-attended for many years. By 2012, Facebook and Twitter were overwhelmingly dominating online personal interaction, and RF Cafe Forums activity dropped off precipitously. Regardless, there are still lots of great posts in the archive that ware worth looking at. Below are the old forum threads, including responses to the original posts. Here is the full original RF Cafe Forums on Archive.org

-- Amateur Radio

-- Anecdotes, Gripes, & Humor

-- Antennas

-- CAE, CAD, & Software

-- Circuits & Components

-- Employment & Interviews

-- Miscellany

-- Swap Shop

-- Systems

-- Test & Measurement

-- Webmaster

Guest
 Post subject: Best Zigbee Devices
Posted: Wed Jun 08, 2005 6:26 am 
Our companies ended up with three best choices by comparing the datasheets and use of avaialble Zigbee devices (listed without particular

ranking):

Ember EM250/EM260

Freescale MC1321X/MC1320X

UBEC UZ2500/UZ2400

Do you have similar experience?

Regards


 
  
 
John
 Post subject: EM250 Sigbee SoC
Posted: Tue Jul 19, 2005 5:25 pm 
I am writing SW for Ember EM250 and interested in exchanging experience with other.

I really like the 16b XAP2 microcontroller that is embedded on the EM250.


 
  
 
ck
 Post subject:
Posted: Thu Jul 21, 2005 10:11 am 
Have done some work with the Freescale MC13192/3. Good range. Easiest transceiver I ever took through a FCC test. Seperate TX and RX ports allows you to consider adding a PA or LNA. However, the Freescale HCS08 processors have clumsy sleep modes requiring external wake-ups. The single chip MC13121X seems to be just putting the MC13192/3 and HCS08 together without addressing the shortcommings of the processor.

Datasheets on the Ember EM250/EM260 look interesting. Does the sleep timer work as indicated? Does the device retain RAM while sleeping?


 
  
 
rooster
 Post subject: EM250 zigbee soc is great!
Posted: Sun Jul 24, 2005 3:19 pm 
Probably the best device in silicon!!!

I was very skeptical to the XAP2, but now that I've started using it, I really like it.

Ember has also built some great and cheap tools to support it. For my home automation application, we get use for a 16b uC. I am skeptical

about 8b uC for Zigbee, man.

EM250=Best Zigbee SoC !!!


 
  
 
Richard
 Post subject: Ember EM250 as MIMO device
Posted: Tue Jul 26, 2005 3:57 pm 
Ember EM250 can also be used as a MIMO system due to its excellent dual rf interface.

You get 7db better sensitivity, assumingly. We are talking about better than -100dBm sensitivity, guys.


 
  
 
Guest
 Post subject: Re: Ember EM250 as MIMO device
Posted: Sat Jul 30, 2005 4:07 pm 
Richard wrote:
Ember EM250 can also be used as a MIMO system due to its excellent dual rf interface.

You get 7db better sensitivity, assumingly. We are talking about better than -100dBm sensitivity, guys.

Could you share how you set up the radio registers of the EM250 to

do this? I've spent hours and still have some problems with a similar

MIMI mode. Thanx.


 
  
 
raphaelgava1
 Post subject: Re: Best Zigbee Devices
Posted: Thu Apr 08, 2010 8:20 am 
 
Lieutenant

Joined: Thu Apr 08, 2010 8:03 am

Posts: 1

Hey guys,

I've been trying to work with Ember developer kit (EM250) but i'm not able to do the communication between sensors and sick. I don't know how I could save my program in them. Can you help me?

Thanks a lot.

Posted  11/12/2012