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Trinket 1500, USB Device not recognized
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Trinket 1500, USB Device not recognized

by DKing01 on Fri Jun 25, 2021 6:28 pm

Hello,

I think I may have a bad batch of trinkets from my last order on May 26th.
Order ID 2575835-1690961490

So far I have 58 trinkets that say USB device not recognized. All of the red LED lights do not light up as well when plugged in.
The other 100+ that were tested today were fine.

I am going through the rest of the batch that was ordered to make sure there aren't any more with issues.
We have ordered thousands of these, and never have had this many with issues.

Thank you

DKing01
 
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Re: Trinket 1500, USB Device not recognized

by dastels on Fri Jun 25, 2021 9:18 pm

Please followup with the results of your testing.

Dave

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Re: Trinket 1500, USB Device not recognized

by DKing01 on Mon Jun 28, 2021 7:35 pm

Hello,

We have a total of 306 trinkets that says "USB Device not recognized".
58 out of the 306 have the board pins soldered on before we caught the issue.

Please let me know what we can do to resolve this issue.
Thank you

DKing01
 
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Re: Trinket 1500, USB Device not recognized

by DKing01 on Tue Jun 29, 2021 11:24 am

Hello,

I apologize. I missed a few more. I also have 8 trinkets that have no power. The LED's do no light up.
Total of 314 trinkets.

Thank you

DKing01
 
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Re: Trinket 1500, USB Device not recognized

by DKing01 on Tue Jul 06, 2021 4:46 pm

Can I please get an RMA started for these?

Thank you

DKing01
 
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Re: Trinket 1500, USB Device not recognized

by adafruit_support_carter on Wed Jul 14, 2021 1:55 pm

Just to be sure on the testing - everything else is the same? Same USB cable, same USB port, same host PC, etc? Only thing different is the Trinket itself?

Please keep in mind that version of the Trinket is deprecated. See warning on top of product page.
https://www.adafruit.com/product/1500
It sounds like maybe your use case is for a pre-existing use that depends on that specific Trinket? That's totally fine and why they are still made available. But just want to make sure you are aware of the hardware deprecation as well.

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Re: Trinket 1500, USB Device not recognized

by adafruit2 on Wed Jul 14, 2021 4:28 pm

whats odd is absolutely nothing has changed with the programming and setup of the trinkets - we have the same components and testing procedure... so its a bit odd to get a large qty with issues
you're going thru a USB 2.0 hub?

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Re: Trinket 1500, USB Device not recognized

by DKing01 on Wed Jul 14, 2021 6:23 pm

Correct. Everything on our end is the same for testing and programming all of the trinkets.

I thought it was odd, as I have never seen such a large amount with issues before. I believe the last batch we had ordered was around 500, and 300+ aren't recognized. The rest of them were fine, and were detected with the same cable, port, and computer used. I even also tried connecting them on a second computer we have setup for programming the trinkets, and it did not connect for those ones either.

We have tested another 200 from a new batch that we just received, and have not had any issues with those..so the issue was only with that batch of 300+ units.

Thank you

DKing01
 
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Re: Trinket 1500, USB Device not recognized

by DKing01 on Wed Jul 21, 2021 2:30 pm

Can I please get an RMA / exchange for these?
We are sitting on over 300 that we cannot use.

Thank you

DKing01
 
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Re: Trinket 1500, USB Device not recognized

by adafruit2 on Sun Aug 01, 2021 5:14 pm

DK - OK before returning them, can you try re-burning the bootloader to the ones with soldered pins - do you have an AVR ICE or an Arduino UNO or something?
nothing has changed with the design in the last few years - and this is the only time we've had anyone come back with 300 used boards that dont work, its very unusual! ;/

in addition we strongly recommend moving away from the trinket '85 and moving to the trinket m0, as there will be more difficulties in the future with the old design!

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Re: Trinket 1500, USB Device not recognized

by Refinedfab on Tue Aug 03, 2021 9:38 am

I seem to be having this same issue

35 boards ordered on 6/23/21

I burned a few that I had left from previous order and was all fine.... As soon as I opened this new batch today to burn them non are recognized and only get a green LED when plugged in

this has never happened before except for a random couple of boards

I also have tried several computers and cables.

Did this ever get figured out?

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Re: Trinket 1500, USB Device not recognized

by DKing01 on Wed Aug 04, 2021 2:03 pm

Hello,

Unfortunately, I do not have anything on hand to reburn the bootloader.
We had 58 with pins soldered on, and 248 straight out of the package that were not recognized when plugged in.
Also had 8 with no LED's. Total of 314.

All of the new ones we have ordered since then have been fine. Just these ones haven't been able to be programmed.

Thank you

DKing01
 
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Re: Trinket 1500, USB Device not recognized

by adafruit2 on Sat Aug 07, 2021 10:08 pm

going forward, can you use https://www.adafruit.com/product/3500 instead? the Trinket bit-bang USB technique it uses doesn't work as well as it did in 2014, many modern computers won't work well. So while we still carry the Trinket so that people can maintain some older projects, we no longer recommend it.

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Re: Trinket 1500, USB Device not recognized

by DKing01 on Mon Aug 09, 2021 11:31 am

Hello,

I will have to check with the engineer to see if that trinket is supported for our use.
Everything had been working fine with the exception of this batch, both the units before and after.

Can I please get an RMA exchange started for these?

Thank you

DKing01
 
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Re: Trinket 1500, USB Device not recognized

by adafruit2 on Fri Aug 13, 2021 2:05 pm

please email support@adafruit with a link to this thread to get known-good replacements.

*if they are unsoldered* please RMA the boards ya have, we can repair them :) support@ can help with it

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