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BB Power Supply Issues
Moderators: adafruit_support_bill, adafruit

Please be positive and constructive with your questions and comments.

BB Power Supply Issues

by Mdeau on Tue May 04, 2010 12:09 pm

Hey guys,

I am an electronics new comer that decided to get the arduino explorer and now I have caught the bug.

Since then I have ventured into my first soldering exercise, Adafruits breadboard adjustable power supply. I am having an issue that hopefully you can help trouble shoot.

The 3.3V and the 5V output work, however the adjustable feature with the pot does not work. It simply passes through the input voltage. Any suggestions?

Mike
Mdeau
 
Posts: 10
Joined: Tue May 04, 2010 12:07 pm

Re: BB Power Supply Issues

by adafruit_support_bill on Tue May 04, 2010 12:11 pm

If you post some good clear pics of the front & back, we might be able to spot the problem.

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Re: BB Power Supply Issues

by Mdeau on Tue May 04, 2010 2:40 pm

Thanks for the quick reply.

I am at work right now armed only with a cell phone camera. I can take a high quality picture once I get home and will post it later tonight.


Mike
Mdeau
 
Posts: 10
Joined: Tue May 04, 2010 12:07 pm

Re: BB Power Supply Issues

by Mdeau on Thu May 06, 2010 12:30 am

Please take a look at the pictures and see if you can spot anything.


Mike
Attachments
BBPS-2.jpg
BBPS-2.jpg (151.83 KiB) Viewed 2101 times
BBPS-1.jpg
BBPS-1.jpg (148.87 KiB) Viewed 2101 times
Mdeau
 
Posts: 10
Joined: Tue May 04, 2010 12:07 pm

Re: BB Power Supply Issues

by Mdeau on Thu May 06, 2010 12:31 am

Some more...
Attachments
BBPS-4.jpg
BBPS-4.jpg (129.74 KiB) Viewed 2100 times
BBPS-3.jpg
BBPS-3.jpg (135.07 KiB) Viewed 2100 times
Mdeau
 
Posts: 10
Joined: Tue May 04, 2010 12:07 pm

Re: BB Power Supply Issues

by adafruit_support_bill on Thu May 06, 2010 6:29 am

Looks like you have a few cold joints there in your soldering. Check out the soldering tutorials and re-do anything that looks suspect.
http://www.ladyada.net/learn/soldering/

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Re: BB Power Supply Issues

by Mdeau on Thu May 06, 2010 10:17 am

Thanks for the tips. I will let you know if it works after I correct it tonight.


Mike
Mdeau
 
Posts: 10
Joined: Tue May 04, 2010 12:07 pm

Re: BB Power Supply Issues

by Mdeau on Mon May 10, 2010 10:04 am

It works! Turns out that it was a cold solder joint on the adjustable voltage selection switch. Thanks for your help!

Mike
Mdeau
 
Posts: 10
Joined: Tue May 04, 2010 12:07 pm

Please be positive and constructive with your questions and comments.