A Bluetooth LE sniffer for CC2540 USB dongle and Mac.

This application captures Bluetooth LE packet in air and saves them to a file.

This is a command line utility.

$ Blesniffer [-c channel#] [-d device#] [-v] output.pcap

Press Control + C to stop capturing packets.

• -c channel#: RF channel. The channel must be from 0 to 39. One of 37, 38 or 39 is recommended. This is option parameter. The default channel is 37.
• -d device#: An index of device in list. This is option parameter. Th default index is 0.
• -v: Enter verbose mode. This is option parameter. The default is no-verbose mode.
• output.pcap: A name of output file which format is PCAP. If you specified '-', the program outputs captured packets to standard out.

The content of output.pcap can be seen per packet using Wireshark.

• Texas Instruments CC2540EMK-USB
• macOS 10.12
• Xcode 8.1

Please read this file.