Why does AT command don't work with ESP8266-01?

Question

i have a problem with my new ESP01. I tried using AT commands with the baud rate of 115200, but don't receive OK answer. I also tried to flash it and didn't quite succeed as it's just flashing that never ends (treid for about 10 minutes).

Setup I use:

ESP8266-01
USB A to UART
TeraTerm

What I get:

When baud = 74880:

When baud = 115200:

I will really appreciate your help...

Why do you think it must response on AT commands? What firmware did you flash? — Mike Petrichenko
– Mike Petrichenko, Commented Dec 7, 2024 at 14:12
Also try this app: esp8266.ru/download/esp8266-utils/ESP8266_Config.zip — Mike Petrichenko
– Mike Petrichenko, Commented Dec 7, 2024 at 14:13
@MikePetrichenko it wasn't answering since I bought it, so I decided to flash it with this link firmware. — Maxymus 989
– Maxymus 989, Commented Dec 7, 2024 at 14:16
I guess the firmware is not compatible with your module or something like that. Try to flash it with default one first. Also there is a table with RX/TX pins. They are different for different firmware. Make sure your wiring is correct. The app described as a configuration tool for the module. I did not test it just found in Internet. — Mike Petrichenko
– Mike Petrichenko, Commented Dec 7, 2024 at 14:23

Fedor · Accepted Answer · 2024-12-13 18:46:29Z

0

I solved it by flashing my ESP01 with this firmware and using CoolTerm instead of TeraTerm.

edited Dec 13, 2024 at 18:46

Fedor

24.7k45 gold badges59 silver badges188 bronze badges

answered Dec 8, 2024 at 19:01

Maxymus 989

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