I've been having a pretty rough time trying to get connected to and uploading code to the two Gemma v2's I purchased a while back (finally have the time to tinker).
I followed the setup guide on two different computers win10/win11 and have the same issue on both.
I downloaded and installed drivers, the windows device manager shows the libusb-win32 devices -> USBTiny. Arduino is installed, and the board Adafruit Gemma (ATtiny85) @8MHz is selected and the USBTinyISP is selected for the programmer. On both computers I get the following error:
Code: Select all
Sketch uses 286 bytes (5%) of program storage space. Maximum is 5310 bytes.
Global variables use 9 bytes of dynamic memory.
avrdude: error: usbtiny_receive: libusb0-dll:err [control_msg] sending control message failed, win error: A device attached to the system is not functioning.
(expected 4, got -5)