3 ms·
Bluetooth is a frequency hopping protocol. Most hardware is provisioned to access one channel at a time. In BLE, even the initial setup can happen over once of
by ajb 3y ago
Bluetooth is a frequency hopping protocol. Most hardware is provisioned to access one channel at a time. In BLE, even the initial setup can happen over once of three channels. My understanding is that it's difficult for a sniffer to work reliably (including the one in the OP) unless the hardware is provisioned to receive multiple channels. But I'm not an expert in it.
- hamandcheese 3y agoYou're probably right, you just reminded me of btlejack, a project for BLE sniffing which can use 3 distinct listeners to reliably sniff setup: https://github.com/virtualabs/btlejack https://github.com/virtualabs/btlejack