Getting an event on a scan?

[stacey]

Is there any way for the application to be notified by the S110 when a central reads/scans an attribute in the peripheral in response to its broadcast?

There are events associated with connections, but our application needs the information to be updated when a central scans the device.

[Ole Morten]

If what you want is to get an event on scan requests while advertising, this is not currently possible. It may be added to a future softdevice version, but I can't commit to any schedule for it.

May I ask what you want to use it for?

[stacey]

It's to allow the peripheral to use the scan as a pivot attribute to perform other actions in response to central devices that come and go. Similar to beacons, except instead of the beacon providing additional information to the central, the central is providing some request to the beacon.

Connections can do this, but that takes more packets, time, and power.

[Ole Morten]

Thanks for the explanation! I see that there could be use cases where this would be useful, and you should contact our regional sales manager for your area if you want information on future plans on this. Please PM me your location if you don't have his contact information.

[Seth]

Hi Ole, Any chance this feature has been added? Thanks, Seth

[FormerMember]

In the latest version of S110, S110 v8.0.0, you can set the application to receive an event upon scan requests, this is stated in the release notes:" The main features of this release are the ability to set the size of the GATT Server Attribute Table when initializing the BLE stack, the possibilityfor the application to be notified when the SoftDevice receives scan requests, and the ability to disable RF channels for advertising."

Setting the firmware to receive scan requests should be done in the ble_opt_t argument in sd_ble_enable(..): ble_opt_t -> ble_gap_opt_t ->ble_gap_opt_scan_req_report_t.

After setting the scan request option, the scan request are notified with the event BLE_GAP_EVT_SCAN_REQ_REPORT.