If you see "JXMCU" or "USB Serial" with a yellow exclamation mark, the driver is missing. Step 2: Download and Install the CH340 Driver
Even if the driver is installed, make sure you have selected the correct COM port under Tools > Port in your IDE. Conclusion jxmcu driver
When you plug a board using this hardware into your PC, the computer needs a specific to understand how to translate USB data into serial signals. Without it, your IDE (Integrated Development Environment) won't "see" the COM port, and you won't be able to upload code. Why the JXMCU Driver is Unique If you see "JXMCU" or "USB Serial" with