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Inovelli has started development of the White Series VTM32-SN, a Matter-over-Thread wall switch planned to include built-in 24 GHz mmWave presence sensing. Hardware and firmware work are underway, but features, certification timing and production targets remain subject to change; no price or preorder date has been announced.
Inovelli has started developing a new Matter-over-Thread wall switch with built-in 24 GHz mmWave presence sensing, extending its White Series with a feature already offered in the company’s Zigbee and Z-Wave lines. The device, identified as VTM32-SN, is still in development, and Inovelli says its planned features and schedule may change.
Inovelli has completed the product’s initial requirements and research-and-development analysis, and hardware design and firmware development are now underway, according to the project information cited by Matter Alpha. The company plans to make 15 beta samples for testing. The switch is based on Project Linus, an existing Inovelli design, adapted for the Matter-over-Thread White Series.
The current target features include operation in either dimmer or on/off mode, power monitoring, smart-bulb mode, configurable ramp rates and dimming limits, leading- and trailing-edge dimming, over-the-air updates and multi-way installations. Inovelli is also targeting a responsive center-rest paddle, a configuration and favorite button, and an addressable RGB LED bar. A neutral wire-free design is part of the plan, though the source describes this as a technically challenging area for Matter-over-Thread devices. An integrated lux sensor is under investigation, not confirmed.
The planned sensing system uses 24 GHz radar. Unlike conventional passive infrared sensors, mmWave can detect smaller movements and may help a light stay on when someone is sitting relatively still. The source also notes that radar can produce false detections in complex room environments. Inovelli’s stated design focus is room-occupancy detection, rather than detailed mapping or tracking of multiple people.
A Presence-Sensing Gap in White Series
The planned switch would bring Project Linus presence sensing to Inovelli’s Matter-over-Thread products, narrowing a feature gap with its other platforms. The company’s Zigbee Blue Series and Z-Wave Red Series already include Linus presence-sensing dimmers, while the White Series has so far focused mainly on conventional load control. For households building around Matter and Thread, a wall switch that can detect continued occupancy could offer a different approach from relying on motion sensors placed elsewhere in a room.
That value depends on how the finished product performs. Radar’s ability to register subtle movement could help keep lights on when occupants are still, but false detection and room-specific tuning can affect day-to-day reliability. The project’s beta phase may provide practical feedback, but the available information does not yet establish real-world performance, compatibility details across smart-home platforms, or final pricing.
The switch also continues Inovelli’s work on Matter device-to-device binding, which can let a switch control compatible lights directly. The company has recently expanded its White Series beta firmware to support group binding, according to the source. Whether this particular switch will support a newer Matter Groupcast approach remains unconfirmed.
Matter-over-Thread smart light switch
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From White Series to Project Linus
Inovelli’s White Series is its Matter-over-Thread counterpart to the Zigbee Blue Series and Z-Wave Red Series. The lineup began with a 2-in-1 switch, now sold as the White Series Smart Dimmer, and has since expanded to include an on/off switch with humidity sensing, a dedicated fan switch and a fan-and-light canopy module. The VTM32-SN would add presence sensing to that collection.
The project is being developed publicly, with Inovelli inviting community feature requests, beta testers and feedback through its forum and project updates. Matter Alpha reports that contributors whose ideas are incorporated may receive credit and a free device. This approach can be relevant for a product whose sensing and control features require testing beyond the initial hardware design.
Inovelli has also been working on Matter binding, including group binding in recent beta firmware. Matter 1.6.1 introduces a newer Groupcast architecture, but the source says there is no indication yet that the VTM32-SN will ship with that version or support its Groupcast cluster. Any such support is a possible future direction, not a confirmed product feature.
“The product’s features and dates may change as development progresses.”
— Inovelli, as reported by Matter Alpha
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Features and Certification Still Pending
No price or preorder date has been announced. The final feature set is also not settled: the lux sensor is only being investigated, and the source does not confirm that Matter 1.6.1 or its Groupcast cluster will be supported. While Inovelli is targeting a design that works without a neutral wire, the project is still under development, and final requirements and compatibility details have not been published.
The schedule remains provisional. Certification, including Matter certification, is currently planned for December through February 1, 2027, followed by production preparation. Inovelli is targeting mass production for March 20, but the source warns that dates may change. The report does not establish when units would reach retailers or customers, nor does it provide independent test results for radar detection, false triggers or performance across different room layouts.
Inovelli White Series smart switch
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Beta Tests and Certification Ahead
Inovelli currently plans to build 15 beta samples and test them from November through December 20. The next listed milestone is certification, including Matter, scheduled for December through February 1, 2027. Production preparation would follow, with mass production targeted for March 20, subject to development changes.
Until the company confirms specifications, certification and commercial details, prospective buyers should treat the feature list and dates as plans rather than guarantees. Inovelli is inviting people to follow updates and submit ideas through its forum; the source says interested users can also volunteer for beta testing.
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Key Questions
What is Inovelli developing?
Inovelli is developing the VTM32-SN, a White Series Matter-over-Thread wall switch planned to include built-in 24 GHz mmWave presence sensing.
What can mmWave presence sensing do?
MmWave radar can detect smaller movements than conventional passive infrared sensing, which may help the switch recognize that someone remains in a room while relatively still. Detection performance and false triggers can vary with the room and still require testing.
Is the switch available to buy?
No. The product is in development, and no price or preorder date has been announced.
When could it enter production?
Inovelli’s current plan targets mass production for March 20, 2027, after beta testing and certification. The schedule may change, and the source does not state a customer shipping date.
Will it support Matter 1.6.1 Groupcast?
That is not confirmed. The source says there is no indication yet that the switch will ship with Matter 1.6.1 or support its Groupcast cluster.
Source: rss
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