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Low voltage between 2&4 and 3&4
Moderators: adafruit_support_bill, adafruit

Please be positive and constructive with your questions and comments.

Low voltage between 2&4 and 3&4

by sscornav on Tue Feb 26, 2013 9:23 am

OK, picture this, science project...due soon.

We soldered everything together and it looks good. I have an ancient analog meter set on 10 DC V. When I test the 1st and 4th post, I get 5.2V great!

When we test post 2 & 4 or 3 & 4, we get close to 1V. I may be reading the thing wrong, but what could be the issue? Do you think it may still work? I don't want to solder on the USB until we know.

Thanks in advance for looking, we need some electrical savvy here!!
sscornav
 
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Joined: Tue Feb 26, 2013 9:14 am

Re: Low voltage between 2&4 and 3&4

by adafruit_support_bill on Tue Feb 26, 2013 9:46 am

Post photos of the front & back of the board. And also post a photo of hour you are taking that 1v measurement.

adafruit_support_bill
 
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Joined: Sat Feb 07, 2009 10:11 am

Re: Low voltage between 2&4 and 3&4

by sscornav on Tue Feb 26, 2013 5:39 pm

We borrowed a modern tester with a digital readout. The #1 & #4 read 4.99. The #2 & #4 and #3 & #4 read about 1.96. So it doesn't appear that low anymore. Are these numbers in the acceptable range?

Thanks!
sscornav
 
Posts: 2
Joined: Tue Feb 26, 2013 9:14 am

Re: Low voltage between 2&4 and 3&4

by adafruit_support_bill on Tue Feb 26, 2013 6:34 pm

Yes. That's pretty close to perfect :D

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Joined: Sat Feb 07, 2009 10:11 am

Please be positive and constructive with your questions and comments.