Revolutionizing Healthy Lighting with the M55M1 AI MCU and Embedded Posture Recognition Technology

Hsinchu, Taiwan – May 21, 2025 – Nuvoton Technology has been selected as a finalist in the Taiwan Ministry of Economic Affairs’ “2025 Best AI Awards” for its innovative AI application. The entry – the "AI Smart Desk Lamp," which integrates the NuMicro® M55M1 microcontroller and a TensorFlow Lite AI model – was highly praised by the jury for its outstanding embedded posture detection and interactive design, demonstrating a new paradigm for smart living applications.

With the dual advancement of AI technology and health awareness, the AI Smart Desk Lamp supports facial landmark and sitting posture recognition and integrates an audio feedback module to provide real-time posture correction reminders, helping users maintain proper posture and protect spinal health.

The AI Smart Desk Lamp adopts Nuvoton’s latest NuMicro® M55M1 microcontroller, which features an Arm® Cortex®-M55 CPU and Ethos™-U55 NPU for advanced AI acceleration, enabling real-time execution of TFLite models. It supports MediaPipe's facial and posture landmark models for sitting posture analysis and detection. With Nuvoton’s NuML Toolkit development tool and NuMaker-M55M1 development board, users can quickly deploy models, shortening product development cycles.

When a user’s sitting posture is poor, the system uses Nuvoton audio module to emit voice prompts to remind the user to adjust posture. Additionally, the smart lamp supports human detection, offering automatic light control based on the user’s position and distance, improving comfort and enhancing the interactive experience.

Application Highlights

• Real-time posture detection and reminders: Built-in facial landmark model and voice prompt function effectively assist in posture correction.
• Fast startup and low power consumption: Uses M55M1’s low-power architecture and instant MCU boot capability.
• Lightweight AI model deployment: Employs TensorFlow Lite model quantization and CMSIS-NN acceleration library to enhance inference efficiency.
• Human sensing and auto-lighting: Automatically turns the light on/off based on user proximity, achieving energy savings and intelligence.

Key Technologies

• Facial landmark detection: Uses publicly available MediaPipe models to capture key facial feature points for posture recognition.
• TensorFlow Lite for Microcontrollers: Enables deployment of high-performance AI models on MCU platforms without high-end processors.
• CMSIS-NN: Uses Arm-optimized function libraries to further enhance inference performance and reduce memory usage.
• Smart wake-up and power-saving mechanism: Automatically turns off the light when unattended; shuts off within 5 seconds after user leaves, effectively saving energy.

This solution is suitable for:

• Office workers who use computers for long periods
• Students and adults engaged in home-based online learning and remote work
• Learning spaces such as classrooms and libraries
• Rehabilitation and medical environments requiring prolonged sitting

Through posture monitoring and reminder mechanisms, it effectively reduces neck and shoulder pain and spinal issues caused by prolonged poor posture, offering an innovative safeguard for a healthy lifestyle.

The AI Smart Desk Lamp demonstrates Nuvoton’s leading capabilities in embedded AI. By combining the high-performance M55M1 MCU, TensorFlow Lite models, and a complete software and hardware toolchain, it not only helps developers shorten product development time but also brings a healthier and more convenient smart living experience to end users. In the future, such AI inference and human-machine interaction applications will show greater potential in smart homes, smart healthcare, and smart offices.

To learn more about Nuvoton’s AI MCU application possibilities, please visit the Nuvoton AI website：www.nuvoton.com/ai

About Nuvoton Technology
Nuvoton Technology Corporation (Nuvoton) was founded to bring innovative semiconductor solutions to the market. Nuvoton was spun-off as a Winbond Electronics affiliate in July 2008 and went public in September 2010 on the Taiwan Stock Exchange (TWSE). Nuvoton focuses on the developments of microcontroller/audio, cloud security, battery monitoring, component, visual sensing and IoT with security ICs and has strong market share in Industrial, Automotive, Communication, Consumer and Computer markets. Nuvoton owns 6-inch wafer fabs equipped with diversified processing technologies to provide professional wafer foundry services. Nuvoton provides products with a high performance/cost ratio for its customers by leveraging flexible technology, advanced design capability, and integration of digital and analog technologies. Nuvoton values long term relationships with its partners and customers and is dedicated to continuous innovation of its products, processes, and services. Nuvoton has established subsidiaries in the USA, China, Israel, India, Singapore, Korea, Japan and Germany to strengthen regional customer support and global management. For more information, please visit www.nuvoton.com.

* Note: Nuvoton and NuMicro are registered trademarks of Nuvoton Technology Corporation. Other trademarks and copyrights mentioned herein belong to their respective owners.

Nuvoton Media Contact
Carol Chang
Microcontroller Digital Marketing Director
+886-3-5770066 ext. 23123
YHChang8@nuvoton.com