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Connecting to USB serial port on my Leonardo - #23 by system - Interfacing w/ Software on the Computer - Arduino Forum
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How to Install, Troubleshoot and Fix COM Port Drivers for Arduino Boards - FTDI and CH340 Series - YouTube
![I brought this board from Amazon.It blinks when I plug into my laptop.But I couldn't work with it. It shows as "USB 2.0-Ser!" in the device manager. And I couldn't update drivers I brought this board from Amazon.It blinks when I plug into my laptop.But I couldn't work with it. It shows as "USB 2.0-Ser!" in the device manager. And I couldn't update drivers](https://preview.redd.it/u7goehyu4dt71.jpg?width=640&crop=smart&auto=webp&s=f916a7efc64e67375851b62dc9d69e4b0ef5417e)
I brought this board from Amazon.It blinks when I plug into my laptop.But I couldn't work with it. It shows as "USB 2.0-Ser!" in the device manager. And I couldn't update drivers
![Amazon.com: ELEGOO UNO R3 Controller Board ATmega328P with USB Cable, Compatible with Arduino IDE : Electronics Amazon.com: ELEGOO UNO R3 Controller Board ATmega328P with USB Cable, Compatible with Arduino IDE : Electronics](https://m.media-amazon.com/images/W/MEDIAX_792452-T2/images/I/71KSLCIEK7L._AC_UF894,1000_QL80_.jpg)