ESP8266 & Arduino & GUI-O automatic pairing

Bernard · 8 Feb 2023, 18:52

@kl3m3n
small clarification: after being asked to reconnect to my wifi router, I see the blue led of the wifi module light up for about 300 msec.

kl3m3n · 2 Aug 2023, 20:27

@Bernard Hi.

Can you please take a look at this video and tell me where do you encounter the problem?

If I understand correctly, the pairing data is exchanged OK. The problem occurs after you reconnect to your router and press back button (at time 0:55 in video above)? You get "Please retry pairing" error?

Also, this error you are describing (Iot connection error. Connection refused, retry in 5 seconds) is raising alarms for me... Can you check IoT settings from the settings menu... Can you connect to IoT (Settings -> Connections -> IoT -> Connect)? It seems there is something wrong with your credentials. Did you by chance modify anything?

Best regards
kl3m3n

Bernard · 8 Feb 2023, 20:14

@kl3m3n
it is precisely at second 58 of the video, when I return from my reconnection to my wifi. Regarding IoT parameters:
Autoconnect is ON (in blue), Server Name = No set, SSL port Number =50000, User-name=gui-o-mqtt-generic, User password = Hidden from user, If I click on it, 9 black dots appear! ! which looks like a password , ,Client id_ No set, Enable IoT notification= disable, Open IoT notification= nothing, Notification to show = nothing
PS: I removed the password in Hidden from user, and tried a connection again, without success!
Bernard

kl3m3n · 2 Aug 2023, 21:21

@Bernard Yes, you have wrong credentials. This is what's causing the problem. You have changed the settings somehow...

I advise you to clear application data or uninstall and reinstall the application. This will reset the settings to default. Alternatively, you could input the correct settings, but I recommend reinstall... It will be easier for you. Then retry pairing.

Note that you must keep the default settings if you want to connect to GUI-O server!

Best regards,
kl3m3n

Bernard · 8 Feb 2023, 20:25

@Bernard said in ESP8266 & Arduino & GUI-O automatic pairing:

@kl3m3n
I forgot 2 parameters in IoT: Connect: Disconnected , New: Add new device: nothing, but after trying to connect I find the name I put in "Pairing device name"

Bernard · 8 Feb 2023, 21:14

@kl3m3n

We are progressing! I uninstalled GUI-O and reinstalled. a new connection attempt and now I arrive at "waiting for peraid device" the blue bar advances for 2 minutes and after that it invites me to start the procedure again. This could be a bad configuration of the wifi module?!
it's a wemos D1 mini ESP8266, in the arduino IDE I used the Lolin(Wemos) D1 mini pro.
Bernard

kl3m3n · 9 Feb 2023, 07:29

@Bernard how do you put Esp8266 into pairing mode? Once the pairing data is stored on Esp8266, it will boot directly into stationary (working) mode. Do you clear the parameters with !CLEAR_PARAMS command?

You must make sure that the WiFi password you input during pairing is correct, otherwise Esp8266 cannot connect. When Esp8266 is connected to the server successfully, the LED should be permanently ON! Please check that the built-in LED configuration is correct for your board (see config.h).

Best regards
kl3m3n

Bernard · 9 Feb 2023, 08:39

@kl3m3n
I see in config.h the following parameters: // Serial communication baud rate
#define _GUIO_SERIAL_BAUDRATE 9600

// LED used for main signaling tasks (e.g., built-in LED)
#define _GUIO_LED_MAIN LED_BUILTIN

// Pin that serves as AP/reset button
#define _GUIO_AP_BUTTON D4, the password is 12345678, after flashing the module if I press the reset key I have the following text in the serial monitor of the IDE:
"ets Jan 8 2013,rst cause:2, bootmode:(3,7)
load 0x4010f000, len 3424, room 16
tail 0
chksum 0x2e
load 0x3fff20b8, len 40, room 8
tail 0
chksum 0x2b
csum 0x2b
v00051370
~ld ".
I note that at the end of the pairing attempt, as described yesterday, the blue led flach ~ 300 msec . I also specify that during the pairing phase, the wifi module is connected to my PC for l power and that I have not changed any parameters in config.h or elsewhere. Before starting the procedure in IoT there is: Autoconnect: Automatic (re)connect, Connect: "connected", New: "Add a new device ". After the procedure in New, I find the device associated with the device ( Bernard or GUIO or Test.
Bernard

Bernard · 9 Feb 2023, 10:27

@kl3m3n

If I'm not mistaken, normally after the initialization phase with Arduino IDE, if I press the reset button of the Wifi module I should see on the serial monitor something like:

GUI-O ESP8266
AP mode
ssid: guio_xxxxxxxx
password:12345678
AP status 1.
It's just no ?

kl3m3n · 9 Feb 2023, 13:46

@Bernard please uncomment

#define _GUIO_DEBUG

in config.h to output more information on uart. Recompile and reupload the code to Esp8266. This will give us more information to work with.

It is definitely some problem on Esp8266 side (not on the GUI-O app side).

Regards,
kl3m3n

Bernard · 9 Feb 2023, 14:37

@kl3m3n
Here is what I see on the IDE terminal:
Pairing request: {
"mqttHostName": "mqtt.gui-o.com",
"mqttUserName": "gui-o-mqtt-generic",
"mqttUserPassword": "lqXeZpv5VJyv0XBT",
"networkPassword": "---------",
"networkSsid": "-----",
"publishTopic": "95fb4171-2024-42de-978e-fcbb6c6caf10",
"subscribeTopic": "b1126463-4511-45b0-84fa-350ad2a41751"
}
Pairing response: {
"pairingResponse": 0,
"pairingDeviceName": "guio_ea9f6d93b119",
"networkSsid": "------",
"networkPassword": "---------",
"mqttHostName": "mqtt.gui-o.com",
"mqttUserName": "gui-o-mqtt-generic",
"mqttUserPassword": "lqXeZpv5VJyv0XBT",
"subscribeTopic": "b1126463-4511-45b0-84fa-350ad2a41751",
"publishTopic": "95fb4171-2024-42de-978e-fcbb6c6caf10"
}
Pairing succeeded! Copying parameters and scheduling restart...
b
gC))k%
H
I a 0gf) X ʎ t N
y )1% 9o)C C9
E )/
**** ESP8266 GUI-O ****

GUI-O parameters not found... initializing...
AP Mode
ssid: guio_ea9f6d93b119
password: 12345678
AP status: 1
I deliberately erased password and ssid but they are correct.
Bernard

kl3m3n · 9 Feb 2023, 20:23

@Bernard It seems that the pairing parameters are not saved into Esp8266 EEPROM successfully... This triggers booting into AP (pairing) mode...

I am wondering if your board selection is ok?

@Bernard said in ESP8266 & Arduino & GUI-O automatic pairing:

This could be a bad configuration of the wifi module?!
it's a wemos D1 mini ESP8266, in the arduino IDE I used the Lolin(Wemos) D1 mini pro.

Best regards,
kl3m3n

Bernard · 10 Feb 2023, 15:38

@kl3m3n
Good morning,
actually i think the wifi modul is faulty. I tried to flash it with 5 different combinations but it's always the same result. I will therefore recommend one and I will keep you informed of the evolution of things. In any case, thank you very much for your patience and valuable advice! maybe these exchanges will be useful to others, but I think it's bad luck.
Kind regards Bernard

kl3m3n · 11 Feb 2023, 08:05

@Bernard Hi.

I suggest you try a simple EEPROM write / read example for ESP8266.
Does this work?

Best regards,
kl3m3n

Bernard · 11 Feb 2023, 16:43

@kl3m3n
Hello kl3m3n
As explained at the beginning of our discussions, I do not know the C language at all. I will therefore be unable to write this procedure!
But on my last pairing attempt, I got to "IoT connection successful" but the blue bar advances for 2 minutes then prompts me to start the process again and what I read on the serial interface of L' IDE and always the same thing as quoted on 09.02.at.9:23 p.m. There is indeed a read-write problem in the ESP! have a good week-end. Bernard

Bernard · 11 Feb 2023, 17:02

@kl3m3n
What I have trouble understanding is that the "Pairing request: { process seems to work since there is a "Pairing response: { , then Pairing succeeded! Copying parameters and scheduling restart . so why " GUI-O parameters not found... initializing...

kl3m3n · 11 Feb 2023, 19:39

@Bernard Hi!

There are numerous examples for EEPROM usage online, e.g.:
https://www.aranacorp.com/en/using-the-eeprom-with-the-esp8266/

@Bernard said in ESP8266 & Arduino & GUI-O automatic pairing:

What I have trouble understanding is that the "Pairing request: { process seems to work since there is a "Pairing response: { , then Pairing succeeded! Copying parameters and scheduling restart . so why " GUI-O parameters not found... initializing...

The pairing parameters are exchanged successfully, but this does not mean that the actual EEPROM write was done successfully... Yes, I agree that this part of the code is a bit awkwardly written. I will see if I can fix this in a timely manner...

Best regards,
kl3m3n

Bernard · 11 Feb 2023, 20:34

@kl3m3n
I used the example and I get the same answer:
Read ID = 18
Read param = 26.50
it seems to work...
in the pairing procedure with GUI-O I don't know how many parameters are exchanged with the ESP but if the LED flashes ~300msec, at 9600 baud they have time to exchange around 950 characters, should that be enough?
Bernard

Bernard · 11 Feb 2023, 20:51

@kl3m3n
No, its ~250 characteres ......

Bernard · 12 Feb 2023, 08:35

@kl3m3n
Good morning
I uninstalled the Arduino IDE is installed again! and noted in passing that he installed libraries that he had not done during the 1st installation. So everything is back to normal and the wifi connection is working. The next step is to connect everything to the internet ...... is there a good tutorial. to do this ?
Thank you very much for your patience and good advice.
Kind regards Bernard