No animation, power light on. I'm pretty sure the wiring is correct. And code. I get this message below:
Binary sketch size: 1,872 bytes (of a 5,310 byte maximum)
avrdude: usbdev_open(): did not find any USB device "usb"
Also my windows does recognize it as Trinket.
Not sure about the orientation on the LED matrix, I search everywhere but see no indications which way it goes. I know LED's are polarity sensitive. Does it matter?
Thanks,
Eric
avrdude: usbdev_open(): did not find any USB device "usb"
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- eschneider777
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- adafruit_support_mike
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Re: avrdude: usbdev_open(): did not find any USB device "usb
Post a photo of your hardware and connections, and the code you're using (between CODE tags please) and we'll take a look.
- eschneider777
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Re: avrdude: usbdev_open(): did not find any USB device "usb
I'm using the example code, unchanged.
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- adafruit_support_mike
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Re: avrdude: usbdev_open(): did not find any USB device "usb
Your connections look good.
Do you have 'USBtinyISP' selected under the Tools->Programmer menu, and are you pressing the Trinket's Reset button about the same time as you click the button to compile and upload code in the Arduino IDE?
Do you have 'USBtinyISP' selected under the Tools->Programmer menu, and are you pressing the Trinket's Reset button about the same time as you click the button to compile and upload code in the Arduino IDE?
- eschneider777
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Re: avrdude: usbdev_open(): did not find any USB device "usb
That was it!
Was that in the directions?, don't remember seeing that...
Thanks,
Eric
Was that in the directions?, don't remember seeing that...
Thanks,
Eric
- adafruit_support_mike
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- eschneider777
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Re: avrdude: usbdev_open(): did not find any USB device "usb
yep, I see it.
I skimmed through pretty quick, man there's a lot of directions for this stuff.
I skimmed through pretty quick, man there's a lot of directions for this stuff.
- adafruit_support_mike
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Please be positive and constructive with your questions and comments.