ESP8266 NodeMCU not detected by computer.

[oemd001]

Hello I purchased a esp8266 NodeMCU and I connected the micro USB into the NodeMCU and connected via USB to my computer, which is running Windows 10 x64 bit. Nothing is showing up. However, the blue light on the esp8266 is flashing (occasionally) but no signal whatsoever from the computer.

Please help and respond?

Thanks!

[killa198921]

Did you install the USB driver ?
https://www.silabs.com/products/development-tools/software/usb-to-uart-bridge-vcp-drivers

[NikolozCh]

Same problem, i have downloaded the drivers but still nothing :/ the blue lightning is flashing just

[devyte]

Either your board is bad, or your drivers are bad. The ones with ftdi can suffer from fake chips, which then get bricked on purpose by the original ftdi driver.
I have several Nodemcu boards, and they flash fine.
This is an issue tracker for the core, and not the right place to ask for support. Please refer to a community forum.
Closing per #3655 .

[sachinkum0009]

Same situation happened with me, I also purchased a nodemcu board of amica which is not showing on my windows platform.

[pipi61]

check in device manager, if installed the usb driver, check serial port number,
and set this comp port number in arduino ide

[sshocked]

I had same problem but I solved it. My board flashed only flashed once(it all about I think what my usb wire works) but, pc still doesnt recognize it. So i installed like 1 thousand times drivers from silabs. But pc still doesnt see it and board still flashing. So i try to change my usb wire to another one, and pc recognized it)) So if yr pc doesnt see com port try ty change the wire.

[degustator]

Thanks to sshocked comment! Wire was the reason. Funniest moment is that I expierenced this problem before and forgot. Lots of wires, that are supplied with devices for charging, aren't complete USB wires, there are probably only 2 power leads inside, and missing D+ and D- wires

[phani5016]

@sshocked ; thankyou... it worked perfectly.. just changed the cable....

can i please know why the cable makes a difference? does it have anything to do with the length and impedance associated with it?

[ofSanjay]

thanks for these conversations. I try to change the cable and it works.

[arbelaju]

I tried to change my wire but it didn't work. So I solved installing this:

https://www.silabs.com/products/development-tools/software/usb-to-uart-bridge-vcp-drivers

[SeppPenner]

I had to install the driver for the NodeMCU manually: https://github.com/nodemcu/nodemcu-devkit/tree/master/Drivers. Afterwards, it worked.

[chronoss09]

Thanks @SeppPenner

[WayneRiesterer]

@sshocked, nice work. It's been a while since I've dealt with hardware and forgot about this. I've faced this issue quite a few times before and keep forgetting that some cables don't offer a data connection. It's now working fine...on with the show :)

[Discostoff]

@sshocked is godlike