// Guides
Plain-language guides to Bluetooth Low Energy sniffing — what the tools actually capture, how advertisements work on the air, and how to get useful data out of the devices around you.
A BLE sniffer captures the Bluetooth Low Energy signals broadcast by nearby devices. Here's what a Bluetooth sniffer actually does, what it can and can't see, and how to start sniffing with hardware you already own.
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"Bluetooth packet sniffer" and "BLE scanner" get used interchangeably, but they capture different things. Here's what each one sees, when you need which, and why your phone can do one but not the other.
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Your Android phone's Bluetooth radio can capture every BLE advertisement around you. A practical walkthrough: scanning, reading payloads, exporting CSV, and the HCI snoop log for your own phone's traffic.
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A practical rundown of Bluetooth Low Energy sniffer hardware — the nRF52840 dongle, Ubertooth One, Flipper Zero, and using your phone — with what each captures, what it costs, and when you actually need it.
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A Bluetooth protocol analyzer decodes raw BLE packets into readable link-layer, L2CAP, and GATT layers. Here's how BLE's protocol stack fits together and which analyzer tools to use, from Wireshark to your phone.
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You don't need a dongle to start sniffing Bluetooth Low Energy. Here's a step-by-step guide to scanning nearby BLE devices with an Android phone — reading advertisements, using a proximity radar, and exporting the data.
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