Tweet-a-watt power issue?
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- rbcameron1
- Posts: 20
- Joined: Sat Jan 17, 2015 5:17 pm
Re: Tweet-a-watt power issue?
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!
- Franklin97355
- Posts: 23912
- Joined: Mon Apr 21, 2008 2:33 pm
Re: Tweet-a-watt power issue?
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
- rbcameron1
- Posts: 20
- Joined: Sat Jan 17, 2015 5:17 pm
Re: Tweet-a-watt power issue?
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.
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.
- rbcameron1
- Posts: 20
- Joined: Sat Jan 17, 2015 5:17 pm
Re: Tweet-a-watt power issue?
One more image up close....
- Franklin97355
- Posts: 23912
- Joined: Mon Apr 21, 2008 2:33 pm
Re: Tweet-a-watt power issue?
What are the part numbers of the two chips in the last photo?
- rbcameron1
- Posts: 20
- Joined: Sat Jan 17, 2015 5:17 pm
Re: Tweet-a-watt power issue?
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
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
- Franklin97355
- Posts: 23912
- Joined: Mon Apr 21, 2008 2:33 pm
Re: Tweet-a-watt power issue?
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
- rbcameron1
- Posts: 20
- Joined: Sat Jan 17, 2015 5:17 pm
Re: Tweet-a-watt power issue?
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...?
- Franklin97355
- Posts: 23912
- Joined: Mon Apr 21, 2008 2:33 pm
Re: Tweet-a-watt power issue?
This picture is the newer style. I would get some of the flexible silicone wire in 30ga and use that.
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Please be positive and constructive with your questions and comments.