B4R Question esp8266 mqtt problem?

[bagazhou]

Hi

I want to use mqtt server send 800 bytes from pc to esp8266 ,but i can get any data and Message Arrived not fire , If I send less than 50 bytes, the result is ok .

wtb:
1. i send 800 bytes from pc to pc ,the result is ok .
2. on b4r i up StackBufferSize to 5000

 

[Erel]

Can you post the code that creates the message and sends it?

 

[bagazhou]

Thank you for your reply . this is my code

B4J Code

  Sub Button1_Action
  Dim bc As ByteConverter

  TextField1.Text="5CCF7FEF7BAB;send;ir;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;"
   mqtt.Subscribe(mqtt_Topic, 0)   
   mqtt.Publish(mqtt_Topic,bc.StringToBytes(TextField1.Text,"UTF8"))
End Sub

B4R Code

Sub Mqtt_MessageArrived (Topic As String, Payload() As Byte)
   Log("Message arrived. Topic=", Topic, " payload: ", Payload)
End Sub

 

[Erel]

You are hitting a limit somewhere. Sending strings is very inefficient. Parse this message in B4J to three fields of strings and the other data as bytes.

Use B4RSerializator to convert the array of objects to bytes and vice versa.

 

[bagazhou]

ok , i will try again use B4RSerializator ,thank you