-500x400.jpg "SMLIGHT addons — Ethernet, 4G, Z-Wave, PoE, Microphone")
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Addons.
One hub. Multiple capabilities at once.
Six expansion modules that click into the dedicated connector on the board and add a new function to your SMLIGHT device. Ethernet, 4G/LTE, Z-Wave 800, PoE, microphone, and 433MHz — each sold separately as an option, and you can choose several modules at once when ordering a single SMLIGHT device.
Installation requires no soldering: the keyed connector prevents incorrect polarity or orientation. Not all modules are compatible with all devices — see model compatibility below.
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Ethernet (W5500)
Wired 10/100 — where Wi-Fi is not suitable. For SLWF-09U and SLZB-U2L
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4G / LTE
Dedicated mobile internet — as the primary connection or automatic backup. For SMHUB, SLZB-Ultima, USB-Extender.
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Z-Wave 800
A third protocol alongside Zigbee and Thread. Long Range, S2 security. For SMHUB, SLZB-Ultima.
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PoE
Power and data over a single Ethernet cable, IEEE 802.3af. For SMHUB, SLZB-Ultima, SLWF-09U.
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Microphone
Digital MEMS microphone ICS-43434 (or equivalent). Sound-reactive WLED on SLWF-09U, audio input on SLZB-Ultima, compatible with any ESP32.
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433MHz
Receive and transmit on the 433MHz band used by many gates, garage doors, and remote sensors. Currently for SLZB-Ultima only.
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| Device | Ethernet (W5500) | 4G/LTE | Z-Wave | PoE | Microphone | 433MHz |
| SLZB-U2L | Yes | Yes | — | Yes | — | — |
| SLWF-09U | Yes | — | — | Yes | Yes | — |
| SMHUB (Ess/Prem) | Built-in | Yes | Yes | Yes | — | In development |
| SLZB-Ultima | Built-in | Yes | Yes | Yes | Yes | Yes |
| USB-Extender | — | Yes | Yes | — | — | — |
SMHUB and SLZB-Ultima have Ethernet built into the board — they do not need a separate Ethernet add-on. The 433MHz add-on currently works with SLZB-Ultima only; SMHUB support is in development.
Ethernet (W5500) — SPI MAC+PHY, 10/100 Mbps, galvanic isolation (magnetics + ESD protection). A self-contained module that requires only the SPI bus — compatible with any ESP32-series microcontroller, making it a DIY-friendly add-on.
4G / LTE — LTE Cat-1 with 2G/GSM fallback, standard SIM card slot. Can be used as the primary connection or as an automatic backup in case of a wired internet connection failure. Connected via the SMLIGHT USB Extender (very simple) or directly via DIY pins to a computer's USB port, the module works as a standard USB modem in any region.
Z-Wave 800 — Z-Wave 800 series radio with S2 security support.
PoE — IEEE 802.3af 48 V standard, regulated 5 V output, galvanic isolation on the input circuit. Power and data over a single cable — no power supply or second outlet required.
Microphone — digital MEMS microphone ICS-43434 or a similar module, I²S interface. On SLWF-09U it immediately enables sound-reactive WLED effects; on SLZB-Ultima it adds an audio input for automations.
433MHz — sub-GHz transceiver add-on for the 433MHz band used by many gate motors, garage doors, remote controls, and wireless sensors. Available for SLZB-Ultima only at this time; SMHUB support is still in development and not yet available.
433MHz — what's in the box: the add-on module, a 433MHz antenna, and an IPX-to-SMA pigtail cable connecting the add-on to the antenna.
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