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Chinese Teen Invents Wearable Forget-Me-Not for Grandma

CAREGIVING & DESIGN: A young Chinese prodigy determined to help his grandmother with Alzheimer’s invented an AI mini-computer to help her recognize family members and find the way home. Find out more.

Alzheimer’s disease is a common form of dementia among older people worldwide. In China, there are about 10 million Alzheimer’s patients, ranking first in the world. By 2050, the number of Alzheimer’s patients in China is estimated to reach 45 million.

Lu Yuan, a Chinese teenager, invented an AI Wearable called the “forget-me-not” for his grandmother, who is in the early stage of Alzheimer’s disease.

The AI Wearable can help patients recognize their family members and guide them home through a built-in voice assistant.

Lu says in his introduction that the AI Wearable uses Arduino Nano and is equipped with a built-in HuskyLens AI Vision Sensor developed by DFRobot, an ultraviolet sensor, MP3 module, and uses Mind+ for programming.

The overall appearance is modeled by 123D Design and the shell is made using SLA (Stereolithography) technology and the process of grinding, polishing and painting.

How does it work?

The built-in HuskyLens in the AI Wearable is an easy-to-use AI vision sensor. It adopts the built-in machine learning technology which can identify human faces.

By a simple click, HuskyLens can finish the AI training and start to learn and recognize a new face.

Engineered with a built-in UART or I2C interface, HuskyLens can seamlessly dock with Arduino Nano. If the AI Wearable recognizes it is a recorded face, it will control the MP3 module, and tell the Alzheimer’s patients through the earpiece whom they are talking to, along with other bits of information.

The built-in ultraviolet sensor can sense the intensity of ultraviolet rays to tell Alzheimer’s patients whether they are indoors or outdoors. If the AD patients are outdoors for 20 minutes or longer, the AI Wearable will remind them to go back home and play home addresses at the same time.

Made by a child prodigy

Of course, being able to make such an invention at such an age is inseparable from his specialized learning since he was a child. According to Lu’s introduction, he became involved with programming when he was a fourth grader.

Lu’s heart-warming invention has become a hit on Chinese social media and there are hopes this invention will help more Alzheimer’s patients in the future.


  • DFRobot is a world-leading robotics and open source hardware provider with a large community catering to future creators. The company was founded in 2008 and is currently headquartered in Shanghai, China. Focusing on the promotion of maker/STEAM/AI education and the development of innovative talents of next generation, DFRobot provides high-quality, various intelligent education hardware resources and services.

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    B. Berger

    B. Berger

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    This site was inspired by my Mom’s autoimmune dementia.

    It is a place where we separate out the wheat from the chaffe, the important articles & videos from each week’s river of news. With a new post on Alzheimer’s or dementia appearing on the internet every 7 minutes, the site’s focus on the best information has been a help to many over the past 15 years. Thanks to our many subscribers for your supportive feedback.

    The site is dedicated to all those preserving the dignity of the community of people living with dementia.

    Peter Berger, Editor


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