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Three bare CC2531 USB dongles on green PCBs with two buttons and LEDs each

Vszerda

Vszerda CC2531 USB Converter 3-Pack

SKU CH-S4MM-ER63D

Three CC2531 USB dongles with ZNP-Prod firmware for Zigbee2MQTT home automation and packet sniffing

  • Ready-to-use Zigbee coordinator with pre-flashed ZNP firmware
  • Compact 5.6 x 1.6 x 0.7 cm USB dongle plugs directly into PC or Raspberry Pi
  • Packet-sniffer capability for IEEE 802.15.4 network analysis and debugging
  • Two buttons and two LEDs provide local user interaction and status feedback
  • 8 exposed IO connectors plus debug interface for hardware development and testing

Home-automation coordinators

This three-pack supplies CC2531 USB dongles that act as Zigbee coordinators for ZB 2mqtt setups. Each bare-board module ships with CC2531ZNP-Prod firmware already flashed, so it is ready to manage BASICZBR3 and S31 Lite Zb devices without extra programming steps.

Plug-in setup

Insert a dongle into any USB port on a PC or Raspberry Pi and it enumerates as a standard serial device for ZB 2mqtt. The bare PCB has no enclosure, so take care not to short the exposed 8 IO pins or the debug header while handling. Two onboard buttons and two LEDs give basic status feedback during pairing and troubleshooting.

Network capacity

One dongle comfortably handles a typical home-automation mesh of sensors, switches and plugs running on IEEE 802.15.4. Large installations with dozens of mains-powered routers may exceed the coordinator’s memory for neighbour tables, at which point a second dongle on a separate channel becomes necessary.

How it compares

Measured against everything we stock in USB Adapter Cables & Dongles, at today’s prices. Recalculated every night.

Price $33.99
Pricier than about 90% of the 1,430 comparable items (median $14.99).

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Specifications

No published specifications for this item yet.

Questions about this item

How do I confirm the CC2531 dongle is working after plugging it into my Raspberry Pi?

The two onboard LEDs should light up once the dongle receives power over USB, and the device will appear as a serial interface in your home-automation software when the ZNP-Prod firmware is running.

What comes in the 3-pack and do I need any extra cables or headers?

The box contains three bare-board CC2531 USB dongles; the eight IO pins and debug pads are exposed but no pin headers or extension cables are included.

Which firmware version should I choose for Zigbee2MQTT — the pre-flashed ZNP-Prod or a custom build?

Each dongle already ships with CC2531ZNP-Prod firmware, so you can start the Zigbee2MQTT setup immediately without flashing anything yourself.

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