Replies to This Discussion

Permalink Reply by Brian Mahaney on April 29, 2012 at 4:47am

I just looked at my board (received a few days ago).  The pins and jumper are in place.

Brian

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Permalink Reply by entropia666 on April 29, 2012 at 2:13pm

This is very strange, it seems like a lack during the assembly phase... Do you think it's still possible to solder pins on it? I would like to avoid to simple soldering of the two holes...

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Permalink Reply by Brian Mahaney on April 29, 2012 at 3:56pm

If it were me, I would probably solder some pins and put a jumper on myself.  I'm reasonably comfortable soldering, but you may want to check with customer service first to see if they can help.  It looks like a manufacturing error to me.  Just out of curiosity, what other problems have you noted?

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Permalink Reply by entropia666 on April 30, 2012 at 10:20am

I have the UART0/2 port not working (I lost my afternoon before discovering that this appears to be a common issue, soldered pins on the UART0 connectors on the long side and it works.

I've waited more than 2 months for my board and with all these quality issues I'm not happy...

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3D RoboticsPermalink Reply by Chris Anderson on April 30, 2012 at 11:29am

entropia666: Sorry to hear about the problems with your board, but the customer service dept at 3DR is there to resolve this, which is much better than trying to do it yourself (and possibly voiding the warranty). Please return the board for a free replacement: email help@3drobotics.com. 

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DeveloperPermalink Reply by Andreas M. Antonopoulos on April 29, 2012 at 4:00pm

That is not what my board looked like. This seems to be a manufacturing bug on this board. 

As others suggested, I would try and add a jumper, though you will need one that has the narrower pitch for that location.

I would advise against connecting two BECs unless you are very sure you have the rails properly set up and you know what you are doing (I didn't, bad outcome). Two power sources with slightly different voltages may cause power to flow through your board in an unexpected way, taking components into the blue-smoke-afterlife. I have a few scorched boards to attest to that. 

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Permalink Reply by entropia666 on April 30, 2012 at 10:22am

So are you suggesting that the way I'm powering it (BEC on output rail and 5V battery) is not good?

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3D RoboticsPermalink Reply by Chris Anderson on April 29, 2012 at 4:25pm

I've never seen that before, and it's not the way the boards are supposed to ship. You can solder your own pins there or just create a solder bridge and that will fix it. I'll ping the factory and find out what happened.

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Permalink Reply by entropia666 on April 30, 2012 at 11:13am

I just soldered the bridge. Anyway, I must say that my board is not a lucky one, in addition to the jumper problem I have UART0/2 not working and SD card giving problems as well!

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