hi all
i want to create ble device with nrf51822 can connected to 433 rf transmitter device and when send every command to ble via ble service, ble device send specify command to other device via rf transmitter. so i have some questions about it:
1) how to create this app can advertise and running operation via ble application from android?
2) how to secure this device? because this device installed on public environmental and each person has android mobile and ble disconvery application can connect to my ble deivce as unauthorized person.
3) how to send command to ble device as encrypted query?
4) ble device is sniffed via third party device when connected to android application? i mean, sniffed all running query between ble device and android?
best regards
Ehsan Farahani Asil
