NRF51822 automatic connection issues

[Jason]

Based s110_nrf51822_5.2.1_softdevice.hex and nRF51 SDK v. 4.4.1 When scanning iOS, why not click pair on the iOS side and NRF51822

connected on? whether the pair can be set to click when connected? How

to set nrf51822 and iOS?

IMG_0505.PNG

[Hung Bui]

Hi Jason,

The bonding process is handled by iOS and the app has no control over it. And it's required by iOS that when a slave requires encryption the user will have the option to accept pairing or not. It's not possible to get away from that pop-up windows.

You can avoid pairing (no security over the characteristics), the device will be connected without the pop-up.

[larry]

I want to ask how to avoid pairing ,where i should set characteristics in code.

best regards larry

[Hung Bui]

Hi Larry, I am sorry for a late response. To avoid pairing you can set the permission of the characteristics with BLE_GAP_CONN_SEC_MODE_SET_OPEN() macro. If you have further question, I would suggest you to open a new thread.