SMLIGHT SLZB-MR3U: A W5500-Based Dual-Radio Zigbee + Thread Ethernet PoE Coordinator
SLZB-MR3U pairs CC2674P10 and EFR32MG24 radios with an ESP32-S3 and WIZnet W5500 for a PoE, Ethernet-first Zigbee and Thread smart home coordinator.
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Components
Hardware components
WIZnet - W5500
x 1
Hardwired 10/100 Mb Ethernet backhaul over SPI
Project description
Overview The SLZB-MR3U is a smart home network coordinator from SMLIGHT that connects Zigbee and Thread wireless meshes to a wired network. It is the "recommended" model in the SLZB-MRxU family, and it pairs two radio SoCs, a Texas Instruments CC2674P10 and a Silicon Labs EFR32MG24, so it can run Zigbee on one radio and Thread on the other at the same time. An ESP32-S3 runs the device firmware, and a WIZnet W5500 provides the hardwired 10/100 Mb Ethernet link that carries the mesh traffic back to Home Assistant, Zigbee2MQTT, or ZHA. The single most important idea for a WIZnet reader is this…
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