How to enable BLE PIN based security for Arduino Nano 33 BLE?

[pauldeg]

Hi,

I need to enable PIN based security for my dev. project on Nano 33 BLE, by PIN security I mean force mobile app to enter a hard-coded PIN to connect to my BLE device.

I know that we can access some of Nordic API directly from Arduino code, like setting TX power level for ex., so can I somehow configure BLE security manager to utilize PIN by accessing Nordic APi directly? If yes, could you provide or point me to some examples, please?

[Kenneth]

I am not sure if this is possible in Arduino, but the description on how to do this with the nRF5 SDK is as shown here:
https://devzone.nordicsemi.com/f/nordic-q-a/35675/how-to-use-static-passkey-for-a-no-display-no-output-peripheral

You need to add one line of code: uint32_t err_code =  sd_ble_opt_set(BLE_GAP_OPT_PASSKEY, &m_static_pin_option); to set the static passkey.