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Inovelli has begun developing the White Series VTM32-SN, a Matter-over-Thread wall switch that is planned to include built-in 24 GHz mmWave presence sensing. The project is in hardware and firmware development, with beta testing and certification planned before a targeted March 2027 production run; features, dates and price are not final.
Inovelli has started developing a new White Series wall switch, model VTM32-SN, that is planned to combine Matter over Thread with built-in 24 GHz mmWave presence sensing. The project would bring the company’s Project Linus design to its Matter-enabled lineup, but remains in development and does not yet have a confirmed price or preorder date.
Inovelli says it has completed the product’s initial requirements and research and development analysis, and has moved into hardware design and firmware development. The company plans to make 15 beta samples, with testing scheduled from November through Dec. 20. Matter certification and other certification work are currently planned for the period from December to Feb. 1, 2027, followed by production preparation. Inovelli’s current target for mass production is March 20, 2027.
The proposed switch is intended to work in dimmer or on/off mode, continuing the flexible load-control approach of Inovelli’s existing Smart Dimmer. Requirements under consideration include power monitoring, smart bulb mode, configurable ramp rates and dimming limits, leading- and trailing-edge dimming, over-the-air updates and multi-way installations. The hardware target also includes a center-rest paddle, a configuration and favorite button, and an addressable RGB LED bar. Inovelli is investigating whether to add an integrated lux sensor; it has not confirmed that feature.
The device is also intended to work without a neutral wire, according to the project requirements. That design can make power management more demanding, particularly for connected devices. Inovelli has not said that every listed feature is locked for production, and it cautions that both the schedule and specifications could change as development proceeds.
Presence Sensing Reaches White Series
The proposed switch could close a gap between Inovelli’s Matter-over-Thread products and its other device families. The company’s Blue Series Zigbee and Red Series Z-Wave lines already include Project Linus presence-sensing dimmers, while the White Series has so far centered on conventional switching and dimming. Adding radar sensing would give Matter users an option designed to keep a room’s lights on when someone is present but moving very little.
Inovelli describes the intended use as room occupancy detection, rather than detailed tracking of people or their positions. MmWave radar can detect smaller movements than passive infrared sensors, which may help when a person is relatively still. But radar can also register unwanted movement in complicated settings, so practical performance will depend on how the sensor is tuned and how it behaves in different rooms. The project’s beta phase will be important for evaluating those trade-offs.
The switch’s Matter-over-Thread connection and possible no-neutral installation may also matter to households choosing devices across smart-home platforms or wiring setups. Those capabilities are product targets, not proof of final compatibility with every controller, lighting load or installation. The announcement provides no final price, and buyers cannot yet compare the device’s eventual cost or performance with alternatives.
Matter-over-Thread smart light switch
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From Linus to Matter Over Thread
Project Linus is an existing Inovelli design that the company is now adapting for its Matter-enabled White Series. Inovelli’s first White Series wall switch was a 2-in-1 device now sold as the White Series Smart Dimmer. The lineup has since added an on/off switch with humidity sensing, a dedicated fan switch and a fan/light canopy module. The VTM32-SN would extend that range with a wall control built around presence sensing.
Inovelli has also been working on Matter binding, which lets compatible devices control one another without relying on a separate automation for every action. Recent White Series beta firmware expanded that work to group binding, so a switch can target a Matter group rather than being bound separately to each light. The source report notes that Matter 1.6.1 includes a newer Groupcast approach, but Inovelli has not confirmed that the new switch will ship with Matter 1.6.1 or support that architecture. Any such support should be treated as a possible future direction, not a confirmed VTM32-SN feature.
Inovelli is conducting development publicly, with opportunities for community feature requests, project updates and beta participation. The company says contributors whose ideas are included may receive credit and a free device. That open process gives potential users a way to offer feedback while the product requirements are still being worked through.
“The company says features and dates may change as development progresses.”
— Inovelli
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Features Still Under Development
The final feature set is not confirmed. Inovelli is still evaluating an integrated lux sensor, and its requirements list may change during hardware and firmware work. The company has not announced a price or preorder date, and the published timeline is a target rather than a guarantee.
It is also not clear whether the VTM32-SN will support Matter 1.6.1 Groupcast, or precisely how its binding features will work at launch. The source material does not provide independent testing of the 24 GHz sensor’s range, false detections or performance in particular room layouts. Those results, as well as compatibility details for controllers, lights and multi-way installations, remain to be established through testing and final product documentation.
wireless smart dimmer switch no neutral wire
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Beta Testing and Certification
Inovelli’s stated next steps are to continue hardware and firmware development, produce 15 beta units and test them from November through Dec. 20. The company then plans certification, including Matter certification, between December and Feb. 1, 2027, with production preparation afterward. Mass production is currently targeted for March 20, 2027, subject to schedule changes.
As development continues, the company says community members can follow updates, submit feature requests through its forum and volunteer for beta testing. The next useful confirmation for prospective buyers will be a more settled specification and schedule, followed by details on certification, pricing and availability.
smart home occupancy sensor switch
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Key Questions
What is Inovelli developing?
Inovelli is developing the White Series VTM32-SN, a Matter-over-Thread wall switch planned to include built-in 24 GHz mmWave presence sensing. It is based on the company’s Project Linus design.
When will the switch be available?
Inovelli currently targets March 20, 2027, for mass production, after planned beta testing and certification. That is a development target, not a confirmed retail availability date, and the company says its schedule may change.
Has Inovelli announced a price or preorder date?
No. The source report says neither a price nor a preorder date has been announced.
Will the switch support Matter 1.6.1 Groupcast?
That has not been confirmed. Inovelli has expanded group-binding work in beta firmware for existing White Series devices, but there is no indication yet that the VTM32-SN will ship with Matter 1.6.1 or its Groupcast cluster.
What does mmWave sensing add?
MmWave radar can detect smaller movements than conventional passive infrared sensing, which may help a switch recognize that someone remains in a room while relatively still. Inovelli’s intended focus is room occupancy, not detailed spatial or multi-person tracking; real-world performance and false detection rates have not yet been reported.
Source: rss
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