If you have purchased a cheap USB adapter for programming EEPROM chips, connecting to serial consoles, or working with LCD screens, you have likely encountered the chip. Search terms like "CH341 3 1" or "CH341A 3 in 1" typically refer to the versatility of this specific integrated circuit.
Click "Read IC" to download the current firmware. Immediately save this as backup.bin .
. While it is often referred to as a "USB drive" by hobbyists, it is actually a USB bridge
Elias traced the edge of the label with a calloused thumb. The handwritten text had faded over time, leaving only the ghost of an inscription: USB Drive CH341 3.1 .
Need help using your CH341? Search for "CH341A programmer guide" or "NeoProgrammer tutorial".