ESP8266 Community Forum

Hello!
I am a total noob when it comes to IOT, every help is appreciated.
I am trying to upload a sketch to my esp 8466-01 which I got from https://www.electronicscomp.com/esp8266-esp01-wifi-module?search=esp.

I am getting this error:
esptool.FatalError: Failed to connect to ESP8266: Invalid head of packet (0xF0)

How do I solve this?
I am using :

Arduino Uno rev3

This esp8266-01 module:https://www.electronicscomp.com/esp8266-esp01-wifi-module?search=esp.

Arduino 1.8.12 IDE (portable version/zip version) I have also tried using the windows 10 Arduino app but get the same error.

ESP8266 Community version 2.6.3 bord drivers.

Connections:


AT+RST:
https://drive.google.com/file/d/1srcjrhrJqVg_hVib37qXHVlvZjdYCmBU/view
Detailed error log: https://pastebin.com/v6WCRCbc.
Error video:https://drive.google.com/open?id=1HFmDkMIjwNJnSkeoptY1OrtpHSh1Difu.
Thank you!

Swap RX and TX lines....

If there is also a USB to serial chip in the circuit of the ESP8266 it may not like it being also connected to Arduino UNO at same time.

RichardS

to use your UNO as usb/serial converter you have to either remove the ATmega 328 (cpu) or keep it in constant reset (tie rst to gnd). TX-TX / RX-RX is correct but you should put a resistor (1k) in RX line.
AND generally you shouldn't do this at all. Don't be cheap, spare yourself frustration and buy a usb/serial converter! Or - especially as noob - even a cheap NodeMCU development board.