I wondered if it was possible to implement BLE secure connections on the DUO like the following example:
- Set duo up as a peripheral
- Set Passkey on DUO BLE = 123456
- Connect to duo using passkey
- Connection requests with incorrect passkey are ignored
This would make the DUO a secure iot ble device, at the moment I cannot find any way to make a secure connection between a phone and a DUO.