This set includes 3 pieces of bare-board CC2531 USB Zigbee modules without plastic casing, adopting Texas Instruments CC2531 2.4GH z wireless chip that complies with IEEE 802.15. 4 and Zigbee protocols. It has two core practical functions. As a Zigbee coordinator, it can run ZNP firmware to build a local smart home mesh network on PC or Raspberry Pi, stably pairing and controlling SONOFF BASICZBR3 switches, S31 Lite zb smart plugs and other Zigbee IoT devices through Zigbee2MQTT. As a packet protocol analyzer, it captures over-the-air Zigbee data packets to cooperate with SmartRF Studio and Wireshark for signal debugging, network troubleshooting and development testing.

The bare board design reserves complete IO pins and a debug download port, convenient for developers to flash custom firmware and carry out secondary hardware modification. Dual LED lights clearly display power status and wireless data transmission. The USB-A plug directly connects to computers and single-board machines without extra extension cables. Low power consumption design ensures long-time stable operation. No complicated driver installation required for most Linux systems, plug and play for daily smart home use and engineering development.
Note: This product is a bare circuit board without shell or external antenna; you can solder an antenna to the RF pad to improve signal transmission distance.