B4R Question How to connect with MQTT using ESP8266

[AndroidMadhu]

Hello,
I want to connect CloudMQTT server using ESP8266.
Could you please provide me any tutorials or example please.

Thanks

 

[AndroidMadhu]

I am able to connect to WiFi router successfully. But not able to understand the first parameter of the below details

mymqtt.Initialize2

What will be value for Stream and ClientID at Initialize2.

Please advice

 

[josejad]

What will be value for Stream

If you see the examples, you have to declare client as WiFiSocken and use client.Stream as first parameter.

Sub Process_Globals
    Private client As WiFiSocket
End Sub

ClientID

What is the client id and where do I find it? | CloudMQTT

We get a lot of questions about what the client id is and where it can be found. This short article will hopefully help you during your MQTT journey.

www.cloudmqtt.com

 

[janderkan]

Why dont you use the search function ?
https://www.b4x.com/android/forum/threads/mqtt.65669/#content

 

[AndroidMadhu]

Sub Process_Globals Private client As WiFiSocket End Sub

Thank you All... I am able to publish the message at CloudMQTT.
The only issue is I am able to put any counter value at the Publish function.

mqttclient.Publish("esp","thank you for your message-ESP")

How Can I put a counter after ESP string?

 

[josejad]

Try something like:

mqttclient.Publish("esp","thank you for your message-ESP number: " & counterValue)

 

[AndroidMadhu]

It is telling like

String Concatenation Operator is not supported

Thanks

 

[josejad]

Sorry, I was thinking in B4A.
If I'm not wrong, try this:

Private Sub mtimer_Tick
  counter = counter+1
  Dim b() As Byte = "thank you for your message-ESP: " & counter
  mqttclient.Publish("esp",b)
End Sub

Please, use [code]...paste your code here...[/code] to show your code

 

[AndroidMadhu]

Sorry, I was thinking in B4A.
If I'm not wrong, try this:

Private Sub mtimer_Tick
  counter = counter+1
  Dim b() As Byte = "thank you for your message-ESP: " & counter
  mqttclient.Publish("esp",b)
End Sub

Please, use [code]...paste your code here...[/code] to show your code

Super....Its Working.....
If I will use GSM SIM 800 instead of WiFi [ESP8266] to connect to CloudMQTT, then should I declare the client same as before ? like below

Private client As WiFiSocket

Please advice.....