ESP07 - I don't see it on my wifi after flashing

[tchetchi]

Hello everybody!

First sorry for my english. I'm French...

I'm also a newbie in the fantastic world of esp!
But today (and for one week now) I'm searching a method to see my esp 07 on my internet. It seems it is never in AP mode.
I explain. I made this wiring

And I use the ESP tool flasher. I first flash with a blank1M.bin and after with the latest realease : ESP_Easy_mega_20210503_normal_ESP8266_1M (and that one of august, and an old one of 2020 too)
In all cases I can flash. I have the "done" message at the end. But after I never see it on my internet.
My wiring : when it is flashed I just disconnect GPIO 15 and TX and RX and power again my board.
Do I miss something?

Thanks a lot for your help....

[TD-er]

Is it the ESP07 or ESP07S?
The ESP07 only has 512k of memory.
The ESP07S does have 4M

The 512k version cannot be used with ESPEasy.

[tchetchi]

For me it's a ESP07.
Where can il find if it is a 07s?
And I have red in some topics that the 07 is an 1MB. If it was a 512k I think that Icouldn't flash it. But the tous says me donne! So for me it's flasher! I'm wrong?

Thanks

[TD-er]

If you try with the esptool.py Python tool, you can see the total flash size from the command line.
Not sure if other flashers actually check the flash size before writing.

Our wiki states it is 512k
That's all I know

[TD-er]

The ESP07 does have a ceramic antenna and the ESP07S has a small ufl antenna connector.

[tchetchi]

I have the ceramic antena... by reading the wiki it seems to be bad....
I just found a tutoriel to do with python . I will try tomorrow and tell you what i have.

[TD-er]

See also here: https://www.esp8266.com/wiki/doku.php?i ... mary_table
It has 2 asterisks, stating: May be different on different editions of the board

So it might be 512, or 1M
Either way it is still quite small making OTA flashing quite hard.

[ThomasB]

My wiring : when it is flashed I just disconnect GPIO 15 and TX and RX and power again my board.
Do I miss something?

Also, after flashing the GPIO-0 boot pin must be logic high during reset/boot.
The pin is typically pulled high by an internal pullup resistor; But check with voltmeter to confirm you see approximately 3.3V at boot-up.

- Thomas

[TD-er]

See also: https://espeasy.readthedocs.io/en/lates ... on-esp8266
GPIO-2 should also be pulled high using a pull-up resistor of roughly 10k - 12k

For GPIO-15 and GPIO-0 I would also advice to use pull-down and pull-up resistors respectively of similar value of 10k ... 12k
GPIO-0 must be pulled up as Thomas mentioned.
I don't think these modules will have an internal pull-up resistor for GPIO 2 and 0, as that was typically introduced for the ESP12S.
Even the ESP12E anf F don't have those and the ESP07 is older than those.

[tchetchi]

Hi
I finally succeed to flash with esptool.py.
That is what it says to me

Code: Select all

esptool.py --chip esp8266 --port COM4 write_flash --flash_mode dio --flash_size detect 0x0 esp8266-20191220-v1.12.bin
esptool.py v3.1
Serial port COM4
Connecting....
Chip is ESP8266EX
Features: WiFi
Crystal is 26MHz
MAC: 3c:........
Uploading stub...
Running stub...
Stub running...
Configuring flash size...
Auto-detected Flash size: 1MB
Flash will be erased from 0x00000000 to 0x00097fff...
Flash params set to 0x0220
Compressed 619828 bytes to 404070...
Wrote 619828 bytes (404070 compressed) at 0x00000000 in 38.9 seconds (effective 127.5 kbit/s)...
Hash of data verified.

Leaving...
Hard resetting via RTS pin...

So I think it's a 1Mb
So I flash it again with esp easy and the 1M.bin and modify my wiring with what you say and I have still nothing.

I don't know micropython so I have to take time to use it. For me arduino is simplier. You say that 1M is to short. So if I use it with arduino is it ok?

Thanks

[Ath]

Code: Select all

 esp8266-20191220-v1.12.bin

That is a really old version, best results are to be expected from the latest available release.

NB: You do know that you are supposed to connect to an access point called ESPEasy once the unit is restarted? After selecting your regular WiFi AP in the UI presented in the browser and entering the matching password, the unit will connect to that WiFi and get an IP-address via DNS, after which it is accessible from your regular WiFi network.

[tchetchi]

Yes it's an old version because I see on the website that recent version (13 and newer) are for 2Mb version. I only have 1Mb.

For the NB yes I know but I dont see the access point espeasy. It's my problem and why I posted here....

[Ath]

Yes it's an old version because I see on the website that recent version (13 and newer) are for 2Mb version. I only have 1Mb.

For the NB yes I know but I dont see the access point espeasy. It's my problem and why I posted here....

The current official website for releases is on github, the downloads on the Letscontrolit.com site are really old and no longer relevant.
Find downloads here: https://github.com/letscontrolit/ESPEasy/releases (you may need to expand 'Assets' at the end of the release notes)
In the ESPEasy_ESP82xx_mega-20210802.zip file, there are several .bin files for 1MB modules available, I assume you would prefer the ones with 'normal' in the name, as they have the most plugins available (not sure what type of sensors you plan on using).

To see what's happening, you could keep the device connected to the usb-serial connector you are using, and start monitoring that serial port (any terminal like putty could be used), set it to 115200 baud, n,8,1 by default ESPEasy will write out what it is doing and any errors or whatever occurs.
When using a terminal program, you can also send commands to it, like 'wifissid,<your_wifi_ap_name>' and 'wifikey,<password_for_ap>' and 'save' to store the settings. 'wificonnect' can be sent to start connecting to the AP.
You can't correct any input using backspace, so you'd better prepare the commands in an editor and copy/paste into the terminal.
And monitoring like that is also the easiest way to retrieve the IP-address once it is connected.

[TD-er]

Yes it's an old version because I see on the website that recent version (13 and newer) are for 2Mb version. I only have 1Mb.

For the NB yes I know but I dont see the access point espeasy. It's my problem and why I posted here....

Can you give a link to that website?
Then we can add a link to the latest builds as the version you mention is over 4 years old, maybe 5.

[tchetchi]

You didn't understand. It's probably my english.
With espeasy flasher i flashed with the 20210802 version. And with that one i dont see the ap espeasy. (I will try to see what happen with putty . I have Nevers did it. Son I have to search how to do. )
But ted-r says me to flash with esptool.py to see if my module is a 512 or 1Mb. That why I flashed it with the 12 version that I mentionned in my last post.

I followed his tuto (part2)
https://randomnerdtutorials.com/flashin ... 2-esp8266/

I found the bin there
https://micropython.org/download/esp8266/

[TD-er]

The esptool.py tool suggestion was mainly because it shows the flash size when starting the flashing.

Also it is one of the most reliable flashers out there, and (semi) platform independent.

After flashing, you can also try to tell the ESP node the WiFi configuration

Code: Select all

wifissid,YourOwnWiFiSSIDname
wifikey,yourTopSecretPassword
save

Also if you connect a terminal tool to it you can see the logs of ESPEasy giving you more info on what may be happening.

Default Baud rate is 115200