Modifying BLE_APP_UART central example (pair certain address/device name)

RE: Modifying BLE_APP_UART central example (pair certain address/device name)

Hakon — Wed, 17 Apr 2019 09:23:56 GMT

Should be possible.

RE: Modifying BLE_APP_UART central example (pair certain address/device name)

Matthew K — Sat, 13 Apr 2019 05:29:55 GMT

Wow, can I ask one last thing before closing?

Is it possible to send/receive NUS data without pairing/bonding? Only the connection is required, without extra steps (BLE_PARAM_REQUEST, security settings, etc)?

RE: Modifying BLE_APP_UART central example (pair certain address/device name)

Hakon — Fri, 12 Apr 2019 13:19:18 GMT

[quote user="MatthewKYEO"]the central requests a connection[/quote]

Yes, and that's all. There is no pairing or bonding in the NUS example. Pairing and bonding is handled by the peer manager module, and it isn't included in the NUS examples.

[quote user="MatthewKYEO"]This thread explains and gives an example of what you've mentioned right?[/quote]

Yes, definitely looks like it.

RE: Modifying BLE_APP_UART central example (pair certain address/device name)

Matthew K — Fri, 12 Apr 2019 05:53:12 GMT

Thanks, Hakon.

0. May I ask about

[quote userid="73166" url="~/f/nordic-q-a/46037/modifying-ble_app_uart-central-example-pair-certain-address-device-name/181602"] The ble_app_uart_central example doesn't support pairing by default.[/quote]

As far as I understood from the NUS central example, the central requests a connection to the scanned nearby peripheral which is advertising an NUS UUID, right? After that, I thought the NUS peripheral gets either paired/bonded to the central, isn't it?

1. Thanks for mentioning

[quote userid="73166" url="~/f/nordic-q-a/46037/modifying-ble_app_uart-central-example-pair-certain-address-device-name/181602"]you can use nrf_ble_scan_filters_enable() and set the filter with nrf_ble_scan_filter_set() with SCAN_ADDR_FILTER as type and the appropriate address as p_data.[/quote]

https://devzone.nordicsemi.com/f/nordic-q-a/40686/where-to-change-name-for-the-scanning-peripheral-name-in-the-uart-central-code

This thread explains and gives an example of what you've mentioned right? I'll try after I hear your words. Thanks!

RE: Modifying BLE_APP_UART central example (pair certain address/device name)

Hakon — Thu, 11 Apr 2019 12:41:19 GMT

[quote user=""]What is the condition to get paired? The peripheral advertising the NUS(Nordic UART Service) in the ADV packet? Or the device name?[/quote]

The ble_app_uart_central example doesn't support pairing by default.

[quote user=""]I can get the Bluetooth address (MAC address) of my PCA10040 peripheral, right? Which SoftDevice 132 function can give me the address?[/quote]

sd_ble_gap_addr_get()

[quote user=""]If I know the address, can I set my central to pair with that address, only?[/quote]

Yes, you can use nrf_ble_scan_filters_enable() and set the filter with nrf_ble_scan_filter_set() with SCAN_ADDR_FILTER as type and the appropriate address as p_data.

[quote user=""]Also, can I change the central example to pair with the device name that has "MY_UART", or something else?[/quote]

Yes, I believe you need to use SCAN_NAME_FILTER then, otherwise same as above.