ESP-01S and ESP USB Programmer with CH340 chip.

How to Fix CH340 USB to Serial Driver 3.8 version issue.

Recently, I started working with the ESP-01S module and CH340 ESP programmer. However, when I tried to upload a new Arduino sketch, I encountered an error: A fatal esptool.py error occurred: Cannot configure port, something went wrong. Original message: PermissionError(13, 'A device attached to the system is not functioning.', None, 31) CH340 Driver Issue and Fix. After some googling, I discovered that the problem was related to the CH340 USB-to-serial chip driver....

June 21, 2024 · 2 min · 240 words