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Smart Bluetooth Forum Discussions

Anonymous
Not applicable

Hello,

I have the following problem, I don't know if it is related to the Android-Application or the BT-Module.

The first connection, when the user connectes the Smartpone and the Module, all Characteristics and Data are read within 2-4 seconds (after he entered the pin). But if he reconnects to to the Module, the reading of all Characteristics and Data will take about 10-30 seconds.

Anybody a hint what could be the reason for this?

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1 Solution
Anonymous
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Hello Matthias,

Try this:

1.  Set short connection intervals and test this.

Thanks

JT

View solution in original post

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9 Replies
MichaelF_56
Moderator
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Moderator

Whats the connection interval?

Which app are you using from the SDK to run the tests?

Do you have air trace capabilities setup?

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Anonymous
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The controller will send every second new data to the smartphone.

The app based on the sample of android (BluetoothLeGatt)

I don't have other tracing capabilities than the trace of the BT-Module and the log of android.

If I choos "Forget the device", the next connection will be OK. But if I reconnect again, the reading of the characteristics and setting the notifications be slow again.

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Anonymous
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Hello Matthias,

A few questions:

1.  Which BT-Module/Board are you using?  TAG3(BCM20736), WICED Sense Kit, USB Dongle?

2.  Which version of Android and Android phone are you using?

We have not experienced this scenario.

Thanks

JT

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Anonymous
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The module is the BCM90236S

The Phone is a Samsung Galaxy S4 mini with Android 4.4

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BoonT_56
Employee
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Employee

Are you using the tag3 board? Which app are you running?

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Anonymous
Not applicable

No, its our own design with the BCM90236S (the module).

The app based on the Android BluetoothLeGatt-Example.

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Anonymous
Not applicable

Hello Matthias,

Try this:

1.  Set short connection intervals and test this.

Thanks

JT

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Anonymous
Not applicable

Thank you. With the shorter intervals, the reading is much faster.

So I have just to check how to change the intervals again in Android.

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Anonymous
Not applicable

Hello Matthias,

A suggestion from our Android Developer:

Choose "Forget This Device" and then try again.

Thanks,

JT

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