Siberiaprog-ch341a !link! -

The SiberiaProg-CH341A Go to product viewer dialog for this item.

# Remove the default kernel module sudo modprobe -r ch341

5.2 No COM Port Detected

Deep in the heart of Siberia, where the winters are harsh and the landscapes are breathtaking, a group of programmers and engineers embarked on an extraordinary adventure. Their mission was to explore the potential of a specific chip, the CH341A, in one of the most challenging environments on Earth.

• The risk: The CH341A’s I/O pins run at 5V natively. Stock, this can slowly kill your flash chip.
• The fix: You need a voltage level shifter (3.3V/5V bidirectional) or a modified CH341A board (look for the black version with a soldered 3.3V LDO).