FRDM-KW36: Smartphone cannot be scanned with Bluetooth

[Lincoln]

Hi, 

After i read this article(https://community.nxp.com/t5/NXP-Designs-Knowledge-Base/KW36-RSSI-tracing-and-monitoring-demonstrati...), I start trying to let kw36 connect a smartphone with BLE as a master by using the sample code wireless_uart.c. But it cant even scan the phone when BleApp_ScanningCallback() is running. I pretty sure my phone's BT was turned on.Then i try to let kw36 as a peripheral, smartphone as master, it works. My phone can find the kw36 and established a connection successfully with it.

Could somebody explain why kw36 cant scan a smartphone with BLE as a master?

Thank you very much.

PS: Both ios and android system i had try, either didn't work.

[Ricardo_Zamora]

Hi,

Hope you are doing well. I assume that you are using the IoT Toolbox, right?

The Wireless UART in the IoT Toolbox app behaves as a central role, that is why you can only connect with the KW36 in Peripheral role. For more information about the Wireless UART example you can refer to the Bluetooth LE Stack and Demo Applications (Path: SDK_doc.zip\docs\wireless\Bluetooth).

Best Regards,

Ricardo