Is it reliable enough to use SCAN REQUEST RESPONSE as ACK?

RE: Is it reliable enough to use SCAN REQUEST RESPONSE as ACK?

Susheel Nuguru — Mon, 03 Aug 2020 11:27:20 GMT

if you are knowing that BLE_GAP_EVT_SCAN_REQ_REPORT came from the scanner of your interest based on the MAC, that could work.

RE: Is it reliable enough to use SCAN REQUEST RESPONSE as ACK?

esonhon — Mon, 03 Aug 2020 10:00:51 GMT

Thanks for your reply.

Actually I use a mechanism to bond the devices to scanner's MAC. If scanner's mac is not equal to desired one, advertising continue.

RE: Is it reliable enough to use SCAN REQUEST RESPONSE as ACK?

Susheel Nuguru — Mon, 03 Aug 2020 08:32:04 GMT

Hi,

[quote user=""]When the advertiser received BLE_GAP_EVT_SCAN_REQ_REPORT event, which indicates the observer has received this package, then stop advertising.[/quote]

This is not a failproof way of knowing that your scanner has received the data. If anyone is walking around with their phone bluetooth on and with active scanning on by mistake (or any other device with active scanning on). then they would send BLE_GAP_EVT_SCAN_REQ_REPORT to your device with sensors. If you stop advertising after this, does not mean the scanner of your interest has received the advertising packet.