And the other one that looks like a development board
They look very different but them should bring the same ic and so same functionality. Am i wrong? How should i program the two version?
What about the esp32? I think it has been around for a year now, is it easy to use as his old brother? Does it value the price (it cost the double of the Esp8266)?
edit: after a few google research i discovered there is HUGE confusion about these modules
so they are all based on the ic esp8266, in the first picture there is a esp-01 and in the second one a esp-12 (wrongly called nodemcu that is a software), as far as i know the only difference between them is the number of GPIO bringhed outside the esp8266
about the esp32 i m still not sure if it is enough ready to overcome the esp8266
The development board has additional circuitry in it, including a serial adapter so it can talk to your computer over USB. It's an appropriate choice if you plan to use it as a standalone microcontroller. It's less appropriate if you want to use it as a wifi adapter for another microcontroller.
NodeMCU is used in reference to both the software, and development boards that are clones of the original NodeMCU board (the one you show a picture of is one of the countless NodeMCU clones)
The ESP32 is a much more capable microcontroller, but also more expensive (like $5-7 instead of $2), appropriate for use as a standalone microcontroller - it's not the sort of thing you'd use as a wifi adapter.
DrAzzy:
The development board has additional circuitry in it, including a serial adapter so it can talk to your computer over USB. It's an appropriate choice if you plan to use it as a standalone microcontroller. It's less appropriate if you want to use it as a wifi adapter for another microcontroller.
NodeMCU is used in reference to both the software, and development boards that are clones of the original NodeMCU board (the one you show a picture of is one of the countless NodeMCU clones)
The ESP32 is a much more capable microcontroller, but also more expensive (like $5-7 instead of $2), appropriate for use as a standalone microcontroller - it's not the sort of thing you'd use as a wifi adapter.
using the esp01 as wifi adapter means that i need to program the main microcontroller (for example an UNO) as if i were receiving commands from serial?
instead using the esp12 could i directly "control" the board from a web interface?
i am getting a little bit crazy seeing the countless nodemcu clones but mainly they seem all the same. The only things that change are the ldo and the ttl converter (ch340/cp2102)
about the esp32 i m still not convinced, it s more powerful for sure but i don't see the same library around compared to the esp8266
aster94:
using the esp01 as wifi adapter means that i need to program the main microcontroller (for example an UNO) as if i were receiving commands from serial?
instead using the esp12 could i directly "control" the board from a web interface?
i am getting a little bit crazy seeing the countless nodemcu clones but mainly they seem all the same. The only things that change are the ldo and the ttl converter (ch340/cp2102)
about the esp32 i m still not convinced, it s more powerful for sure but i don't see the same library around compared to the esp8266
There are so many ESP8266 variants. Way more then just an ESP-12 and ESP-01. The chip is always the same. The difference is in the placement of the antenna and how many IO ports are accessible. Here is a page with the different variants.
