[Solved] Commissioning the ESP8266 01 WIFI module - step-by-step instructions

How do I get this module up and running?

You need to supply 3.3V (to be sure, an output of more than 500mA) and, using the same communication logic, send the appropriate AT commands. A list of AT commands is available by typing the same as in the topic into Google.

I tried powering it on a contact board from a power supply module of the kind used for contact boards I connected via a voltage converter to rs /USB as in the video of the electroconductor but it does not detect it.

ESP-01 will not be detected by the PC in any way, because it has no USB interface. If you want to run it from a PC, you need a USB-UART converter, connect it to the PC, check what COM port it has been assigned, add drivers if necessary, disconnect it, set it to 3.3V (I recommend the red one with the FTDI chip), connect the TX-RX, RX-TX, GND- GND pins, connect the converter to the PC, supply power to the ESP-01 module, open the terminal with the selected COM port at speed 115200 (other speeds may also work, e.g. 9600, depends on how the ESP is configured at the moment), send an AT command with end-of-line characters and a new line. 9600, it depends how the ESP is currently configured), you send an AT command with end of line and new line characters, if it responds OK, you have established communication and you can send it further commands in this mode.
I use the ESP with an Arduino, uploading some made up programs or example programs from core ESP to it according to the many tutorials on how to use and program the ESP. For this you also need a UART converter, to upload programs and possibly communicate with the PC. For a start, you may want to look at the sticky topic here: https://www.elektroda.pl/rtvforum/topic3415731.html.
It is much easier to get started using an ESP board that has such a converter built in, e.g. I recommend the ESP WEMOS mini.

I have connected it through the uart adapter as you write in addition to the 3.3v to 5v converter , at times it reported the version via the terminal to the commands sent at does not respond how to connect the other pins of the module ?

Here's a tutorial:
[youtube]https://www.youtube.com/watch?v=RaYZxqUTNWU [/youtube] .

I have just according to this video done everything , maybe module defective?

If it reports at times and then doesn't then it's more suggestive that something is wrong with your cables.
All pinology for normal startup:
VCC to 3.3V
GND to GND
RX to TX of 3.3V UART module
TX to RX of 3.3V UART module
RST to VCC via R 10k
CHPD to VCC via R 10k
GPIO 0 to VCC via R 10k
GPIO 2 not connected
If you want to run in flash upload mode, short GPIO 0 to GND and then reset/power up.
Some modules already have resistors on the board, check the resistance between pins with a meter, if it is 5-12k it means that the above mentioned resistor is unnecessary (i.e. it is already there).
Just to be sure, buy such an adapter for communication and flash uploading:
.
One switch for each mode, great convenience to start with, no complications with cables connects/disconnects. Unfortunately you have to pull out, switch/connect - they didn't give a button for RST.

akr18 wrote:

I connected it through uart adapter as you write in addition through voltage converter 3.3v to 5v , at times it reported with version text through terminal on sent commands at does not respond how to connect other pins of module ?

.
The wiring diagram of the ESP-01 is as follows:

.

Link: https://www.allaboutcircuits.com/projects/fla...-ESP-01-firmware-to-SDK-v2.0.0-is-easier-now/

I will check again , thanks for your replies .

The adapter in the photo above has only CHPD shorted to VCC (no resistor - cheap), the RST on each ESP-01 is pulled up to VCC via 12k (measure your own), and for the flash upload option shorted GPIO 0 to GND via a 2k resistor. So that it is more important to have a good power supply and choose the right speed when sending AT commands.
You can still do a RESET with a terminal speed of 74k, then it will spit out data right after startup with some information, such as what mode it starts in.

Today I will do measurements and further tests, when I know something I will write .

When switched on it prints :
$€ţ[04]DţťĘ8üťAÄ[18]ń[00]$üü

NodeMCU 0.9.5 build 20150318 powered by Lua 5.1.4
lua: cannot open init.lua
>
after typing at:
AT+GMR
AT+GMR
stdin:2: '=' expected near 'AT'
>

You have NodeMCU firmware, not AT firmware, so AT commands will not work.

Now the question is what you intend to actually do with it, if you need it for AT commands, then you just do the firmware upgrade described in previous topics in this section.
If you intend to use it as a uC programmed by the core ESP8266 in the Arduino IDE, then just set it to flash upload mode and load your soft.

I would like to use it for AT commands , I have connected it according to the diagram , I have run the program https://www.allaboutcircuits.com/projects/fla...-ESP-01-firmware-to-SDK-v2.0.0-is-easier-now/ but it prints FAIL after attempts

Where did you download the AT firmware from?

I run the programme this https://www.elektroda.pl/rtvforum/topic3415731.html , I don't know what to do next.

Descriptions of how to upload the AT flash to the ESP appear here quite often. You download a version of your choice, e.g.
ESP8266_AT...V1.6.2.zip Download (2.33 MB) .
You set up the ESP Tool by pointing to the files: .
Make sure you have at least 1MB of flash, if it will buffer at QIO (resets after flash upload) then you set slower modes, sometimes I used DOUT.

Probably defective after all , I will purchase a new one , thanks for your help.

The chip works I have successfully uploaded the batch with the download tool thanks for your help.

All ok