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Smart HomeIndustrial Automation
Luminance
AI Smart Lighting Switch featuring BL602
Wave-activated smart switch with zero physical contact, ideal for kitchens and hospitals.
Gesture Accuracy
97%
Standby Power
0.1W
Luminance
Client
A lighting controls company wanting to offer a hygienic, no-touch light switch for commercial kitchens, hospitals, and clean rooms.
Challenge
Implementing reliable gesture recognition (on/off/dim) that works despite reflective surfaces, shadows, and ambient IR noise.
Product Concept & Architecture
The Bouffalo Lab BL602 RISC-V SoC was selected for its integrated Wi-Fi/BLE and low BOM cost. A PAJ7620 optical gesture sensor provides 9 recognizable gestures. A TRIAC-based dimmer circuit handles load control with active zero-crossing detection.
Engineering Solution
We implemented a three-stage processing pipeline on the BL602: raw sensor data → median filter → lightweight TinyML classifier for gesture rejection (distinguishing intentional gestures from pass-by movements). The firmware runs on FreeRTOS with task prioritization ensuring zero-crossing interrupts are never missed. Matter protocol support enables multi-vendor smart home compatibility.
Result
97% gesture recognition accuracy at 15cm range. Sub-200ms response latency. Installed in 12 hospital ORs with zero infection control issues.
Deep Tech FAQ
What makes the AI Smart Lighting Switch featuring BL602 unique?+
The AI Smart Lighting Switch featuring BL602 leverages custom hardware and edge AI to deliver industry-leading performance and efficiency.
What are the core technical benefits?+
Key benefits include low power consumption, real-time processing, robust connectivity, and a compact form factor tailored for deployment.
Can this architecture be adapted for other use cases?+
Absolutely. The underlying methodology is modular and can be retargeted for various applications with minimal redesign.
Project Profile
Services Delivered
Hardware DesignEmbedded Software
Core Technologies
Wi-Fi/BluetoothTinyMLRTOS
Silicon & Vendors
Bouffalo LabBroadcom
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