Linux/WL1837MOD: BLE communication

Uri Mashiach

Intellectual 350 points

Part Number: WL1837MOD

Tool/software: Linux

Hello,

I'm using the WL1837MODGI unit to communicate with with BLE devices.

I encounter the following problems:

1.The following command is used for scanning the BLE devices:

# hcitool lescan

RSSI levels of ~ -75db are detected at distance of ~3 meters.

With an alternative Bluetooth device, RSSI levels of ~ -40db is detected at the same distance.

2. Disconnections are occurring when connecting to 3 and above BLE devices.

Are the problems above related to firmware?

Are the problems above related to configuration?

Can the Bluetooth power levels be controlled?

According to the user guide, the unit includes an RF switch for selecting the 2.4GHz antenna port.

How can the RF switch be controlled?

Thanks,

Uri

over 5 years ago

0 Hari Nagalla over 5 years ago

TI__Mastermind 27080 points

Hi Uri,

Are, you using WL1837MOD on a custom board Or with WL18 COM8 module?

You can change the power vectors, please check below thread -

e2e.ti.com/.../538978

Thanks

0 Hari Nagalla over 5 years ago in reply to Hari Nagalla

TI__Mastermind 27080 points

We, did not hear from you.. We, hope your issue got fixed.. If, not please get back to us..

Thanks

0 Uri Mashiach over 5 years ago in reply to Hari Nagalla

Intellectual 350 points

Hello Hari,

Thank you for your replay.
I'm using a custom board.
Please provide the HCI command sequence for changing the power vector to increase the BLE power levels.
I didn't get an answer regarding question number 2 - the disconnections problem.

Thanks,
Uri

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Linux/WL1837MOD: BLE communication