Android Question B4A Bluetooth Pairing to Invisible device

Erel

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• May 29, 2018

• #2

Yes. You just need to call Serial.Connect with the Mac address. If pairing is required then the system will show the pairing dialog.

 

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J

jobykpaul

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• May 30, 2018

• #3

Thank you, Then how do we enter the pairing password in Serial.Connect. ?
I found this line from the example code.
Dim device As NameAndMac = Starter.Manager.foundDevices.Get(Index)
Starter.Manager.ConnectTo(device)
Thank you

 

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DonManfred

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• May 30, 2018

• #4

jobykpaul said:

Then how do we enter the pairing password in Serial.Connect. ?

Click to expand...

The Device user must Enter it.
It can not be done programatically.

 

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J

jobykpaul

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• May 31, 2018

• #5

Thank You for your reply,
When the app try to connect to the Bluetooth phone , the error displayed "Error connecting:java.io.IOexpecption:read failed, socket might closed or timeout, readret: -1"

 

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Erel

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• May 31, 2018

• #6

This means that the other device is no listening for SPP connections, at least not on the default UUID address.

 

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J

jobykpaul

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• May 31, 2018

• #7

I did the following , First i installed the app on my Phone(Bluetooth Example) you provided, and then click the "search for devices" button , and found my PC , then try to connect it and got the above error.

How to make listening SPP connection in my PC or another phone ?

 

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Erel

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• May 31, 2018

• #8

jobykpaul said:

and found my PC , then try to connect it and got the above error.

Click to expand...

This is expected. Your PC doesn't listen for incoming connections.

The simplest way to test it is with two Android devices. If you don't have a second device then you can create a virtual serial port mapped to your Bluetooth adapter and then use this program to test it: https://www.b4x.com/android/forum/threads/jserial-library.34762/#content

 

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J

jobykpaul

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• Jun 1, 2018

• #9

It worked

 

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