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Tweet-a-Watt plus Relay
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Tweet-a-Watt plus Relay

by tsmack on Mon Jan 11, 2010 2:13 am

I would like to build a tweet-a-watt that can turn on and off a relay from the output of a tweet a watt using a spare i/o channel. Basiclly adding a relay control to the tweet. I would like to use VB6 to control and read the tweet-a-watt. I am using the vb6 example listed in the forum. Any help or ideas? Thanks
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Re: Tweet-a-Watt plus Relay

by adafruit on Mon Jan 11, 2010 10:23 pm

there is not enough power to run a relay in a tweetawatt
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Re: Tweet-a-Watt plus Relay

by ProfNimrod on Tue Jan 12, 2010 11:38 pm

Even with a solid state relay such as ESR51? Not cheap but perhaps workable... although probably wouldn't be able to fit it into the KAW.

If you figure it out please post details.

Good luck, Kurt
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Re: Tweet-a-Watt plus Relay

by adafruit on Wed Jan 13, 2010 12:07 am

doubtful. the 10000uF cap is barely enough :)
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Re: Tweet-a-Watt plus Relay

by ProfNimrod on Mon Jun 21, 2010 7:56 pm

Hi forum

Thought I'd post a summary about a result I got today regarding switching mains with an XBee. This wasn't done in the context of a Kill-a-Watt, but thought it might interest some nonetheless.

The setup is simply a battery powered XBee mounted on the Adafruit adapter. DIO1 of the Xbee is configured to be switchable. The relay I'm using is a solid state variety that I got off eBay - 10 of them for $30 - a fantastic price given that Ultimate Electronics sells the m for $30 apiece. The SS Relay is made by Mager, requires 3V to switch, and can switch a load of up to 25A. The product number is MGR-1 D4825. I simply connected the switching connections on the SSR to the GND and DIO1 on the XBee and then was able to switch my office fan off an on by sending the appropriate remote AT commands... Works great!

Bye for now, Kurt
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Re: Tweet-a-Watt plus Relay

by pankajshelare on Fri Dec 14, 2012 6:01 pm

ProfNimrod wrote:Hi forum

Thought I'd post a summary about a result I got today regarding switching mains with an XBee. This wasn't done in the context of a Kill-a-Watt, but thought it might interest some nonetheless.

The setup is simply a battery powered XBee mounted on the Adafruit adapter. DIO1 of the Xbee is configured to be switchable. The relay I'm using is a solid state variety that I got off eBay - 10 of them for $30 - a fantastic price given that Ultimate Electronics sells the m for $30 apiece. The SS Relay is made by Mager, requires 3V to switch, and can switch a load of up to 25A. The product number is MGR-1 D4825. I simply connected the switching connections on the SSR to the GND and DIO1 on the XBee and then was able to switch my office fan off an on by sending the appropriate remote AT commands... Works great!

Bye for now, Kurt


Hi Kurt,

I need more information about your work done on using relays with xbee module. I'll greatly appreciate if you can submit the screen shots/document/links etc.

Thanks,
Pankaj
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