I have assembled and tested the RGB-LCD display with backpack using an Uno.
I now want to go to the next step and replace the Uno with the Trinket. I also noticed that I get a USB error message indicating that the USB device is not recognized, but I think this is a normal message, right? 'avrdude: Error: Could not find USBtiny device (0x1781/0xc9f)' When I try to upload the program, I get an error message: In trying to program the 5v Trinket, I cannot seem to get the onboard LED to pulse. I believe I followed the instructions closely, as this is not my first Trinket project.
The LED comes on steady for about 2 seconds and then goes off. So, it is obviously not ready to receive the sketch. I have second 5v Trinket the I plan on using for another project. I attached that one to the cable and got the same results. I can't believe that the bootloader is corrupted on both Trinkets, so I am assuming I must be doing something stupid, or forgetting to do something.
