Tweet-a-watt power issue?

XBee projects like the adapter, xBee tutorials, tweetawatt/wattcher, etc. from Adafruit

Moderators: adafruit_support_bill, adafruit

Please be positive and constructive with your questions and comments.
User avatar
rbcameron1
 
Posts: 20
Joined: Sat Jan 17, 2015 5:17 pm

Re: Tweet-a-watt power issue?

Post by rbcameron1 »

Any luck?

User avatar
rbcameron1
 
Posts: 20
Joined: Sat Jan 17, 2015 5:17 pm

Re: Tweet-a-watt power issue?

Post by rbcameron1 »

I have the P4400.1 revision. I promised my boss I can get this to work only to realize that what you show online isn't even close to what I cracked open. Any updates would be absolutely helpful!

User avatar
Franklin97355
 
Posts: 23912
Joined: Mon Apr 21, 2008 2:33 pm

Re: Tweet-a-watt power issue?

Post by Franklin97355 »

Post photos. This is an old project and may no longer work with the new Kill-a-Watts. You will need to find the ADC pins and hope there is enough extra power available to power the added circuitry

User avatar
rbcameron1
 
Posts: 20
Joined: Sat Jan 17, 2015 5:17 pm

Re: Tweet-a-watt power issue?

Post by rbcameron1 »

I'm hoping I can use these, or I'm really up a creek with no paddle...
I'm no electrical engineer, but if everything is just rearranged, I'm good at soldering.
My guess is that the connection points are behind the LCD screen.
IMG_20150117_183402.jpg
IMG_20150117_183402.jpg (228.4 KiB) Viewed 674 times
IMG_20150117_183407.jpg
IMG_20150117_183407.jpg (388.24 KiB) Viewed 674 times
IMG_20150117_183431.jpg
IMG_20150117_183431.jpg (297.18 KiB) Viewed 674 times

User avatar
rbcameron1
 
Posts: 20
Joined: Sat Jan 17, 2015 5:17 pm

Re: Tweet-a-watt power issue?

Post by rbcameron1 »

One more image up close....
IMG_20150117_183519.jpg
IMG_20150117_183519.jpg (302.92 KiB) Viewed 674 times

User avatar
Franklin97355
 
Posts: 23912
Joined: Mon Apr 21, 2008 2:33 pm

Re: Tweet-a-watt power issue?

Post by Franklin97355 »

What are the part numbers of the two chips in the last photo?

User avatar
rbcameron1
 
Posts: 20
Joined: Sat Jan 17, 2015 5:17 pm

Re: Tweet-a-watt power issue?

Post by rbcameron1 »

P/N: 6522022W02 rA for the board itself for the LCD
P/N: 6522022W01 rA for the board for the plug in part

the rectangular circuit chip has a TI logo on them and say: 36P1MKAG3 and LM2902 on the second line
and the square chip says: FT24C02A (I can't tell if it says CQ2a or Co2A) and then the second line is 45ROFD

User avatar
Franklin97355
 
Posts: 23912
Joined: Mon Apr 21, 2008 2:33 pm

Re: Tweet-a-watt power issue?

Post by Franklin97355 »

The LM2902 is the chip you need to connect to. Follow this thread and the instructions here https://learn.adafruit.com/tweet-a-watt ... ransmitter

User avatar
rbcameron1
 
Posts: 20
Joined: Sat Jan 17, 2015 5:17 pm

Re: Tweet-a-watt power issue?

Post by rbcameron1 »

What did people do with the fact the LCD still had to fit flush back on the face? The LCD fits over the chip I'm soldering to when I go to reassemble. I guess I'll have to get creative...?

User avatar
Franklin97355
 
Posts: 23912
Joined: Mon Apr 21, 2008 2:33 pm

Re: Tweet-a-watt power issue?

Post by Franklin97355 »

This picture is the newer style. I would get some of the flexible silicone wire in 30ga and use that.
Attachments
2015-01-18_19h34_29.png
2015-01-18_19h34_29.png (254.45 KiB) Viewed 629 times

Locked
Please be positive and constructive with your questions and comments.

Return to “XBee products (discontinued)”