nodemcu / nodemcu-flasher

A firmware Flash tool for nodemcu

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NodeMcu 8266 Clone not detecting on PC

TrapFather opened this issue · comments

I have being trying to plug in my NodeMcu 8266 Clone from China but it's not being detected by my PC
I have tried numerous different cords (including data transfer cables) and installed all the CH340G Drivers, ESP8266 Drivers and had no luck!

If anyone has a solution please help me.
I appreciate your help.

Regards,
TrapFather

I had the same problem, but all it took for me was opening up device manager and clicking on the Ports(COM & LPT) drop down for it to detect. Hope that works.

commented

@TrapFather do you use windows or ubuntu?

In my case the undetected board is a lolin v3. Trying to discover if the problem is the ESP8266 or the USB-to-Serial converter, I discovered that at least in my case was the later.
I was able to flash a new nodemcu firmware using the nodemcu flasher tool while overcoming (i.e., not using) the CH430 USB-to-Serial converter onboard and replacing it using a regular FDTI USB-to-serial converter.

FDTI  <----->   ESP8266 nodemcu
-----------------------------------
  RX                  TX
  TX                  RX
 GRND                GRND
 GRND                 D3
 3.3V                 D4

It worked and even I haven't try it, I guess programming the board (e.g. lua or arduino) is possible using the same configuration.
Best

I cant find "a regular FDTI USB-to-serial converter", do you have the precise references of your converter pls

I cant find "a regular FDTI USB-to-serial converter", do you have the precise references of your converter pls

@dzp0wer like this one among others: https://www.banggood.com/FT232RL-FTDI-USB-To-TTL-Serial-Converter-Adapter-Module-For-Arduino-p-917226.html?rmmds=search&cur_warehouse=CN

Just remember to buy one working at 3.3V as ESP8266 does. In the one I linked just remember to put the jumper in the 3.3V position.
Best,