RE: nRF51822 Pairing confirmation with hardware button click with Mobile App

Wwing — Mon, 07 Feb 2022 02:27:50 GMT

Hi,Bjorn

I had the same problem with him, I I need to establish pairing the device with smart phone by clicking a button as confirmation on the nRF52833 ,so I can get the response BLE_GAP_EVT_SEC_PARAMS_REQUEST.but how can I reply it and disabled pairing.In other words, what function do I need to use to realize the function of clicking the button of the APP to initiate pairing and not clicking it will not be paired.

RE: nRF51822 Pairing confirmation with hardware button click with Mobile App

bjorn-spockeli — Wed, 28 Aug 2019 11:14:49 GMT

Hi Krishna,

upon receiving a paring request from a BLE central, the SD will generate an event, BLE_GAP_EVT_SEC_PARAMS_REQUEST, which triggers a callback where the appropriate "reply" function, sd_ble_gap_sec_params_reply() is called. So if you only want to pair if the button is pressed, then you can wait for the butten press when handling the BLE_GAP_EVT_SEC_PARAMS_REQUEST. If the button is not pressed, then you do not send sd_ble_gap_sec_params_reply().

See the Peripheral Security Procedures message sequence charts for more information on which events that are generated during the pairing process for the different pairing methods.

Best regards

Bjørn