https://tttapa.github.io/ESP8266/Chap13%20-%20OTA.html

Which ESP8266 module was used for this tutorial?

Have you read all of the chapters in that link, starting at the first one?

...R

I did.

He mentions the modules that are good to use, but he doesn't say which one was used specifically by him for the example. I am guessing he thinks they are interchangeable, but to be safe, because this is my first attempt at this, I would prefer to use what he used.

ieee488:
A Beginner's Guide to the ESP8266
Which ESP8266 module was used for this tutorial?

modules with 1MB flash at least

Juraj:
modules with 1MB flash at least

Yes, I understood that from the tutorial.

Some module was used. Which was it?

ieee488:
Yes, I understood that from the tutorial.

Some module was used. Which was it?

it is not important.
I used esp8266 OTA with Uno WiFi, ESP-12F, Grove WiFi UART, Wemos D1 mini

Juraj:
it is not important.
I used esp8266 OTA with Uno WiFi, ESP-12F, Grove WiFi UART, Wemos D1 mini

It is important to me, in the event I run into problems and the person who wrote the tutorial says he doesn't have the same device and never used it.