connect several device at the same time

It should be feasible (the device support up to 10 BLE connections) although we haven't tried multiple mobile phones recently. 

We have tested successfully a the SPPLE SERVER connected multiple clients - so you can try connecting the mobiles (although the application will not work) to this app.

We'll need to check if there is anything that prevents multiple connections in the sample application. 

Hello Kobi,

Thank you for your answer.

The Serial Port Profil allows to send and receive data between 2 devices.

But can I still use my BLE services and caracteristics (write/read and notification of GATT) with the SPP?

Do you have a tutorial with the sample LinuxSPPLE_PM, please ?

Thanks for your help

Thanks Kobi,

There is a problem with your links :

"This page does not exist

The Processors Wiki was removed on January 15, 2021"

Thanks for documents Kobi,

Tell me if I understood correctly :

my goal :
Connect 10 iOS remotes to my smart object (wl1837), in low energy technology.
My smart object is a GAT Low Energy server.

To make this work :
It will be necessary to use the SPP profil but custom because the SPP profil is not a standard profil in low energy.
This custom profil could encapsulate the GAT profil (and my services/characteristic already defined).

But it would be necessary to create a custom low energy profil on the remotes (iOS) based on the SPP profile.

Is that it?

Thanks a lot for your help

You don't need the SPP. You can implement your service on top of Bluetopia GATT interface. 

I don't understand what service you are talking about.

But my 1st problem is to connect 2 smartphones to the LinuxSPPLE_PM application.
2 smartphones with one wl1837 (SS1BTPM 4.2)

SPPMLE>1 1

BTPM_Initialize() Success: 0.
DEVM_RegisterEventCallback() Success: 5.
SPPMLE>9 1

DEVM_PowerOnDevice() Success: 0.
SPPMLE>
Device Powered On.
SPPMLE>RegisterEventCallback

Device Manager Event Callback already registered.
Function Error.
SPPMLE>StartAdvertising 0x3f 20


Local Device Properties Changed.
Device Flags: 0x80020000
LE Scan Mode:    FALSE, 0x00000000
LE Adv Mode:     TRUE, 0x00000014
SPPMLE>
LE Advertising Started.
SPPMLE>DEVM_StartAdvertising() Success: Duration 20 seconds.
SPPMLE>
Local Device Properties Changed.
Device Flags: 0x80000000
LE Scan Mode:    FALSE, 0x00000000
LE Adv Mode:     FALSE, 0x00000000
SPPMLE>
LE Advertising Stopped.
SPPMLE>
Remote Device Found.
BD_ADDR:             75D5XXXXXXX
Address Type:        Resolvable Random Address.
Device Name:         
LE Type:             Single Mode
Device Flags:        0x40008000
LE RSSI:             0
LE Paired State :    FALSE
LE Connect State:    TRUE
LE Encrypt State:    FALSE
GATT Services Known: FALSE
SPPMLE>
Remote Device Properties Changed.
BD_ADDR:             75D5XXXXXXX
Address Type:        Resolvable Random Address.
LE Type:             Single Mode
Device Flags:        0x40008000
LE Connect State:    TRUE
SPPMLE>
Unknown Device Manager Event Received: 0x00000016, Length: 0x00000010.
SPPMLE>
Unknown Device Manager Event Received: 0x00000016, Length: 0x00000010.
SPPMLE>StartAdvertising 0x3f 20


Local Device Properties Changed.
Device Flags: 0x80000000
LE Scan Mode:    FALSE, 0x00000000
LE Adv Mode:     FALSE, 0x00000000
SPPMLE>
LE Advertising Stopped.
SPPMLE>DEVM_StartAdvertising() Failure: -10001, Invalid Parameter.
Function Error.

Is this normal?