ESP8266 Community Forum

- Tue Apr 19, 2022 12:16 pm #94340 Hi!

I had this nodemcu laying around and wanted to start on a PID project.
I tried connecting it to my Windows 11 computer with Arduino IDE.
I've installed the necessary drivers and board manager packets, but can't seem to upload anything to it.

Arduino responds:

Code: Select allesptool.FatalError: Failed to connect to ESP8266: Timed out waiting for packet header

The serial monitor responds when i press the RST button:

Code: Select all ets Jan  8 2013,rst cause:2, boot mode:(7,4)

waiting for host

I also can't seem to update the firmware using the NodeMcu Flasher.
But the blue led on top of the kit blinks when i try to update or upload anything, so i guess it's not dead.

Anything somebody can help me with?

Thanks in advance!

- Tue Apr 19, 2022 3:43 pm #94342 I've come a step closer.
After connecting D8 to GND i'm able to upload code to the nodemcu.
But when i disconnect the cable it's not working anymore.

- Mon Apr 25, 2022 12:01 pm #94373 Don't know if this will help or not...
There are some boards (very few) that require you to press the "boot" button when the upload starts.
Also... if you have wiring on it... there are many pins, that if you have them wired can cause troubles.
https://randomnerdtutorials.com/esp8266-pinout-reference-gpios/

3 lines of code = Complete IoT, App, Web Server
w/ GUI Admin Client, Drag & Drop File Manager, OTA Built-In, Access Point Manager,
Performance Metrics, Web Socket Comms, App API, All running on ESP8266...
Even usable on ESP-01S --- Please check it out!
https://inqonthat.com/inqportal-the-three-line-promise/
https://InqOnThat.com/inqportal