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Previous batches of Controllino Maxi Automation PURE 100-101-10 had no issues.
Once the functioning versions were connected by USB under Linux it showed:
dmesg:
usb 2-2: Manufacturer: Arduino (www.arduino.cc)
usb 2-2: SerialNumber: 85035303038351419261
cdc_acm 2-2:1.0: ttyACM0: USB ACM devicelsusb:
Bus 002 Device 013: ID 2341:0042 Arduino SA Mega 2560 R3 (CDC ACM)
However, with the newest batch with the exact same version number (Maxi Automation PURE 100-101-10) we get the following:
dmesg:
usb 2-2: New USB device found, idVendor=03eb, idProduct=2fef, bcdDevice= 0.00
usb 2-2: New USB device strings: Mfr=1, Product=2, SerialNumber=0
usb 2-2: Product: ATmega16u2 DFU
usb 2-2: Manufacturer: ATMELlsusb:
Bus 002 Device 014: ID 03eb:2fef Atmel Corp. atmega16u2 DFU bootloader
We cannot upload sketches in the IDE and there the port is not offered.
Windows has similar issues and atmega16u2 shows in device manager but cannot install driver.