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Inovelli has started development of the White Series VTM32-SN, a Matter-over-Thread wall switch with built-in 24 GHz mmWave presence sensing. Hardware and firmware work are underway; beta samples are planned for November to December 2026, with production targeted for March 2027. Features and dates may change, and price and preorder timing have not been announced.
Inovelli has started developing the White Series VTM32-SN, a Matter-over-Thread wall switch that would add built-in 24 GHz mmWave presence sensing to the company’s Matter lineup. The project brings its existing Project Linus design to a third connectivity platform, with hardware and firmware development now underway; the company’s schedule remains subject to change.
The VTM32-SN is planned to follow Inovelli’s Project Linus switches in its Zigbee Blue Series and Z-Wave Red Series. Like the current White Series Smart Dimmer, it is intended to support either dimmer or on/off operation. The requirements also list 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 includes a center-rest paddle, configuration and favorite buttons, and an addressable RGB LED bar. Inovelli is aiming for operation without a neutral wire, a more technically demanding design for a Matter-over-Thread device. The company is also investigating an integrated light-level, or lux, sensor; the source report does not establish it as a final feature.
Inovelli has completed initial product requirements and research and development analysis, and says hardware design and firmware work are underway. Its current schedule calls for 15 beta samples from November through December 20, 2026, certification from December through February 1, 2027, and production preparation afterward. Mass production is targeted for March 20, 2027. No price or preorder date has been announced.
Presence Sensing Joins White Series
The proposed switch would close a feature gap between Inovelli’s Matter-enabled White Series and its Zigbee and Z-Wave ranges, which already include Project Linus presence-sensing dimmers. For households using Matter over Thread, a wall switch with occupancy sensing could combine control of a lighting circuit with the ability to detect whether a room is in use.
MmWave radar can detect smaller movements than conventional passive infrared sensors, which can help a system maintain occupancy detection when someone is relatively still. But sensing performance depends on the room and the device’s tuning; radar can also produce false detections in complex spaces. Inovelli’s stated focus is room occupancy, rather than detailed tracking of locations or multiple people. Actual performance remains to be established through product testing.
Matter-over-Thread smart light switch
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How It Extends Inovelli’s Lineup
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 added an on/off switch with humidity sensing, a dedicated fan switch and a fan-and-light canopy module. Project Linus would bring a presence-sensing option to this Matter range.
The company is also working on Matter device-to-device binding, which lets a switch control compatible lights directly. In recent White Series beta firmware, Inovelli has added group binding, allowing a switch to target a Matter group. The Matter 1.6.1 SDK includes a newer Groupcast cluster, but there is no confirmation that the VTM32-SN will ship with Matter 1.6.1 or Groupcast support. The source report describes that as a possible future direction, not a committed feature.
“The company has completed the initial product requirements and R&D analysis, with hardware design and firmware development now underway.”
— Inovelli, as described in the Matter Alpha report
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Features Still Under Development
The final feature set has not been confirmed. The lux sensor is still under consideration, and it is not yet clear whether the switch will support Matter 1.6.1 Groupcast. The source material also provides no price, preorder date or confirmed retail availability date.
Radar performance in real rooms, including how the device handles false detections, will need to be assessed during testing. The listed beta and certification dates are planned milestones; Inovelli says they may change as development continues.
Inovelli White Series smart switch
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Beta Samples and Certification
Inovelli’s next listed milestone is a build of 15 beta units for testing from November through December 20, 2026. Certification, including Matter certification, is scheduled for December 2026 through February 1, 2027, followed by production preparation. The company currently targets mass production for March 20, 2027.
Inovelli is taking community feature requests and plans to share project updates and recruit beta testers through its forum. The schedule and final specifications may change; the company has not announced pricing or when preorders might open.
smart dimmer switch with occupancy sensing
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Key Questions
What is Inovelli developing?
Inovelli is developing the White Series VTM32-SN, a Matter-over-Thread wall switch with built-in 24 GHz mmWave presence sensing.
When is the switch expected to be available?
Inovelli currently targets mass production for March 20, 2027, after planned beta testing and certification. This is a development target, not a confirmed retail availability date.
What features are planned?
Listed targets include dimmer or on/off operation, power monitoring, smart bulb mode, configurable dimming settings, over-the-air updates and multi-way installations. A lux sensor is under consideration, and the final feature set may change.
Will it support Matter Groupcast?
That has not been confirmed. Inovelli has been developing group binding in White Series beta firmware, but there is no indication that the VTM32-SN will launch with Matter 1.6.1 or its Groupcast cluster.
Has Inovelli announced a price or preorder date?
No. The source report says neither a price nor a preorder date has been announced.
Source: rss
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