DC Boarduino - No Red LED Blink
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DC Boarduino - No Red LED Blink

by monkeyice on Tue Nov 06, 2012 10:29 am

Dear Adafruit,
I built a Boarduino for the first time, and the green LED lit ok with the DC power supply as it is instructed. However, the red LED does not blink three times when I press the reset (C6 is soldered). Where and how should I start to correct the case? There were two jumper pins included in the product package, but I used just one for "ext" according to the instruction. Would this be wrong? Other than the one remaining jumper pin (and a few pin headers), I used all the parts...
Thanks.
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Re: DC Boarduino - No Red LED Blink

by adafruit_support_bill on Tue Nov 06, 2012 11:41 am

If you post clear photos of the front & back of the Boarduino we will check your assembly.
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Re: DC Boarduino - No Red LED Blink

by monkeyice on Wed Nov 07, 2012 8:23 am

Thank you for the response. I tried to take make the photos as clear as I could.
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Re: DC Boarduino - No Red LED Blink

by adafruit_support_bill on Wed Nov 07, 2012 8:49 am

Looks like a few solder-starved joints there. Have a look at this guide and touch up any joints that look suspect.
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Re: DC Boarduino - No Red LED Blink

by monkeyice on Wed Nov 07, 2012 10:10 am

Thank you for your comments. I soldered some spots further, but it didn't help. Would you be more specific about the suspected solder starve locations? Is a multi-meter helpful to check if the soldering is ok?
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Re: DC Boarduino - No Red LED Blink

by adafruit_support_bill on Wed Nov 07, 2012 10:42 am

The solder-side photo is too fuzzy to see well, but I marked everything that looked suspicious to me:
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backside.jpg
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Re: DC Boarduino - No Red LED Blink

by monkeyice on Fri Nov 09, 2012 10:36 am

Based on the instructions, I tried to solder some more, but still nothing happens for the red LED when I press the reset button. I attached the photos of the current assembly. Would you inspect it and advise me what could be done further to let the red LED blink? Thanks.
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IMG_1084-001.JPG
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IMG_1081-001.JPG
IMG_1081-001.JPG (85.45 KiB) Viewed 451 times
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Re: DC Boarduino - No Red LED Blink

by adafruit_support_bill on Fri Nov 09, 2012 11:01 am

OK. The solder looks good now. I suspect the problem is with the processor. Contact support@adafruit.com with a link to this thread and ask for a replacement Boarduino processor.
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