How to read accelerometer data from BLE beacon

[mayank_patel]

Hello,

I have one custom board which have Nordic's nrf52840 chip. I'm using this chip to scan the surrounding beacons.

For beacon scanning i have integrated Bluez stack on my custom board (From yocto build) and using following APIs/structures of Bluez stack for scanning.

1) print_advertising_devices

2) evt_le_meta_event

3) le_advertising_info

On nrf52840, i'm using zephyr based hci_uart application. So after creating hci interface i'm using above APIs for the beacon scanning and parsing bdaddress, name and rssi.

Now, I have one BLE beacon which is advertising accelerometer data x,y and z co-ordinates (Verified using nrfConnect application).

Q : Is there any APIs/structures available in Bluez stack which can help me to get/parse the accelerometer data broadcasted by beacons.

Thanks,

Mayank

[awneil]

mayank_patel said:

Is there any APIs/structures available in Bluez

That's really a question for Bluez - nothing to do with Nordic!

http://www.bluez.org/contact/

https://docs.ubuntu.com/core/en/stacks/bluetooth/bluez/docs/

[mayank_patel]

Hi awneil,

I also wanted to ask that is there any application in nrf_SDK which i can use to get accelerometer data of beacon?

[awneil]

That is an entirely separate question!

That would involve using one of the SDK "Central" examples ...

infocenter.nordicsemi.com/.../examples_ble_central.html

Note that there is also the Nordic nRF Connect app for use in testing & development:

https://www.nordicsemi.com/Software-and-tools/Development-Tools

[mayank_patel]

For someone who is exploring bluez and using nordic devices

I found the answer and it's "le_advertising_info" API of buez gives the raw data packets in bytes which is broadcasted by BLE beacons.

You can find data[] variable which contains raw data in hex values.

Parsing this raw data is a different thing altogether, but still i can get the raw bytes for which i have to write a data parser.

Thanks,

Mayank