Olimex Support Forum

Microcontrollers => ESP32 => Topic started by: dparrnd on December 12, 2018, 01:59:43 am

Title: ESP32-POE no com port on USB
Post by: dparrnd on December 12, 2018, 01:59:43 am
I just received a ESP32-POE.
I connect the board to a windows PC using an USB cable. Ethernet port isn't connected. I expect a detection of new USB device by the PC, so that i can provide the right driver and get a COM port. But nothing occurs. I change the cable and the PC. No change.
The only feedback at the board level is a red led.
Any Idea ?
Title: Re: ESP32-POE no com port on USB
Post by: LubOlimex on December 12, 2018, 08:26:31 am
Hello,

The USB drivers might be missing somehow. Please install the CH340T drivers for your operating system. For Windows the drivers are inside this archive:

https://www.olimex.com/Products/Breadboarding/BB-CH340T/resources/CH341SER.zip - run the SETUP.exe inside the "CH341SER" folder.

Is the device visible in "Windows Device Manager" after the driver installation?

Best regards,
Lub/OLIMEX
Title: Re: ESP32-POE no com port on USB
Post by: dparrnd on December 12, 2018, 12:42:31 pm
Hi
Thanks for your reply.
The cause of my issue was the USB cable.  Unfortunately, my second USB cable was also wrong .... But with a third one,  it's OK. My first two USB cables provide only power !
Best regards
Denis
Title: Re: ESP32-POE no com port on USB
Post by: LubOlimex on December 12, 2018, 12:54:29 pm
Thanks for update, glad you identified and solved it.