I purchased two 5V trinkets, and when I plug either one into my mac- running 10.10.4- the red light stays lit for a moment and then goes out! It does not strobe and I get the message "avrdude: Error: Could not find USBtiny device (0x1781/0xc9f)" when i hit the upload button in arduino.
The arduino IDE has been set up, I have tried with two different trinkets, on 3.0 and 2.0 usb ports, with two different cords, on two different macs. I have followed the IDE and Trinket setup guides thoroughly.
I have tried resetting the trinkets with my arduino uno. No luck. Any Idea what could be wrong? This is no coincidence because I have tried two different trinkets. one came directly out of it's package and was plugged into my computer first thing.
5V Trinket Bootloader Failing on Mac
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Please be positive and constructive with your questions and comments.
- adafruit_support_rick
- Posts: 35092
- Joined: Tue Mar 15, 2011 11:42 am
Re: 5V Trinket Bootloader Failing on Mac
The red light doesn't strobe when you press the reset button?
And you've tried repairing the bootloader? Are you sure that procedure completed successfully?
It's odd that you should have two Trinkets with bad bootloaders like that.
Do you have anything attached to the Trinkets?
And you've tried repairing the bootloader? Are you sure that procedure completed successfully?
It's odd that you should have two Trinkets with bad bootloaders like that.
Do you have anything attached to the Trinkets?
- nickjwarren
- Posts: 2
- Joined: Wed Jul 15, 2015 5:09 pm
Re: 5V Trinket Bootloader Failing on Mac
Nothing Connected. One was right out of the bag brand new. Drivers are not required for macs correct? Is there something people often miss from the tutorials?
- adafruit_support_rick
- Posts: 35092
- Joined: Tue Mar 15, 2011 11:42 am
Re: 5V Trinket Bootloader Failing on Mac
If you have an Arduino Uno, you can try repairing the bootloaders:
https://learn.adafruit.com/introducing- ... bootloader
Otherwise, Please email [email protected] with a link to this thread for replacement trinkets
https://learn.adafruit.com/introducing- ... bootloader
Otherwise, Please email [email protected] with a link to this thread for replacement trinkets
- bcochran1
- Posts: 497
- Joined: Mon Jan 21, 2013 10:46 pm
Re: 5V Trinket Bootloader Failing on Mac
I sort of wonder if the USB cable is in good shape -- no kinks or bends or cuts in it -- and whether the power and signal from the Mac is correct.
I use the Mac myself and it works wonderfully. I'm very fussy about keeping my USB cables in good order.
Bob
I use the Mac myself and it works wonderfully. I'm very fussy about keeping my USB cables in good order.
Bob
Please be positive and constructive with your questions and comments.