CC2540 USB is Bluetooth low energy USB Dongle. The dongle can be used to enable Bluetooth low energy on your PC. It can also be used as a packet sniffer for analyzing the BLE protocol and for software and system level debugging. Use free tool SmartRF Packet Sniffer. The dongle comes preprogrammed as a BLE host device monitor. To program and debug software running on the dongle, you need the CC Debugger or SmartRF05EB board (not included). Features: * Lead Out 8 IO Ports * Debug Pin * Matching Different Firmware (Sniffer And BTool) To Achieve Bluetooth Adapter And Protocol Analyzer Function * The Dongle Can Be Used As Mini Bluetooth 4.0 Development Board Technical data: * Size:4.1*1.6cm * Board Thickness:1.6mm * Operating Frequency:2.405-2.485GHz * Wireless Transmission Speed Rate:1Mbps * Power Consumption:<20mA (receiving);<25mA (transmission) https://elecena.pl/product/22626185/cc2540-sniffer-bare-board-protocol-analyzer-module 2023-02-23 https://elecena.pl/product/22626185/cc2540-sniffer-bare-board-protocol-analyzer-module 2025-10-28