blescan

A terminal UI application for scanning and analyzing BLE (Bluetooth Low Energy) device advertisements.

Features

• Real-time BLE device scanning
• Device list with RSSI, advertisement count, and interval
• Detailed device view with manufacturer lookup
• Raw advertisement data stream
• Filter by device name or minimum RSSI
• Sortable device list
• Color-coded signal strength indicators

Installation

Homebrew (macOS/Linux)

brew tap buckleypaul/tap
brew install blescan

From Source

go install github.com/buckleypaul/blescan/cmd/blescan@latest

Using Make

git clone https://github.com/buckleypaul/blescan.git
cd blescan
make build

Usage

blescan

Keyboard Shortcuts

Device List View

Key	Action
Up/k	Previous device
Down/j	Next device
Enter	View device details
/ or n	Filter by name
r	Filter by minimum RSSI
c	Clear filters
s	Cycle sort column
q	Quit

Device Detail View

Key	Action
Up/k	Scroll up
Down/j	Scroll down
Esc	Back to list
q	Quit

Platform Requirements

macOS

• Bluetooth must be enabled
• Terminal app needs Bluetooth permission (System Preferences > Privacy & Security > Bluetooth)

Linux

• bluez package must be installed
• May require root access or CAP_NET_ADMIN capability
• Alternatively, add your user to the bluetooth group:

  sudo usermod -a -G bluetooth $USER

License

MIT License - see LICENSE file.