Trinket Connection issue

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mark_alex_maidique
 
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Joined: Fri Jul 14, 2017 9:37 pm

Trinket Connection issue

Post by mark_alex_maidique »

Hello there-

I've got two different Adafruit Trinket 3v's that I am trying to use, with no luck. I've gone through all the steps in the tutorial (install Arduino IDE 1.6, Adafruit drivers), but when I try to upload a program, I get this error: avrdude: Error: Could not find USBtiny device (0x1781/0xc9f).

Also, as soon as I power on, the red light double blinks (not glow). I've pressed the reset button, I've tried different cables, and I've tried both trinkets I have. If it matters, I've soldered on the LiIon/LiPoly Backpack Add-On.

Any suggestions?

Mark

EDIT: Tried yet another cable, I now at least I get the red glow. However, when I try to upload, I get an "avrdude: verification error: content mismatch". What could that mean?

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Franklin97355
 
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Re: Trinket Connection issue

Post by Franklin97355 »

Can you post a picture of the Trinket and the output from the failed upload.

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