Android Question esp8266 access point mode

[paul fredrick]

from this post... https://www.b4x.com/android/forum/threads/connecting-two-esp8266-boards.89726/#post-574764

a connection like this is possible between android and esp8266? and how...
thanks

 

[Erel]

Example of communication between ESP8266 and Android: https://www.b4x.com/android/forum/t...d-and-receive-objects-instead-of-bytes.72404/

You just need to connect the Android device to the ESP8266 ad hoc network. Test it in airplane mode with wifi enabled to avoid issues where the Android device prefers the cellular network.

 

[paul fredrick]

thanks for the reply, but I've already tried successfully what you tell me, I mean a connection between android and esp8266 direct.
I would like to connect to 192.168.4.1 (ssid = esp)
I tried this code:

Sub Process_Globals
   Public Serial1 As Serial
   Private Server As WiFiServerSocket
   Private Astream As AsyncStreams

    Private APSSID As String = "esp"
    Public WiFi As ESP8266WiFi
End Sub

Private Sub AppStart

   Serial1.Initialize(115200)
   Log("AppStart")
    Select WiFi.StartAccessPoint(APSSID)
       Case 1
            Log("Access Point Initialisation Successful")
            Log("SSID: ",APSSID)
            Log("ip: ", WiFi.AccessPointIp)
            Server.Initialize(80,"Server_NewConnection")
            Server.Listen
        Case 0
            Log("Something Went wrong!")
            WiFi.Disconnect
   End Select
End Sub

Sub Server_NewConnection(NewSocket As WiFiSocket)
   Log("new connection")
    Astream.Initialize(NewSocket.Stream,"Astream_NewData", "Astream_Error")
    Astream.Write("ok".GetBytes())
End Sub

Sub astream_NewData (Buffer() As Byte)
       Log("stream")
End Sub

Sub Astream_Error
    Log("Error.")
End Sub

I do not know how to do it in b4a ...

 

[Erel]

You don't need to do anything special in B4A other than:
1. Connect the Android device to the ESP network.
2. Set the correct ip address.

 

[paul fredrick]

I tried with your project b4a client and I connected the tablet to ssid "esp" with ip "192.168.4.1", but it don't work ...
help

 

[Erel]

You need to start from the B4RSerializator example and modify the B4R code to work with the ad hoc network. It shouldn't be too complicated. It is just a few lines when the app starts.