The Assistive Switch is an adaptive input device designed for individuals with limited hand function or difficulty accurately targeting conventional buttons or switches. It enables users to activate connected devices with minimal and imprecise movements, thereby improving accessibility and ease of use.

The activation surface is designed to provide consistent responsiveness across the switch. Users do not need to press the exact center; activation can also be achieved by pressing the edge or other off-center areas. This feature is particularly beneficial for users with a limited range of motion, reduced motor control, or difficulty performing precise hand movements.

The device is available in two sizes, with diameters of 12.7 cm and 6.5 cm, allowing users to select an appropriate size according to their physical abilities, range of motion, and intended application. It is also compatible with standard smartphone and tablet mounting systems users may already own, enabling flexible positioning and adjustment without requiring a dedicated mounting system.

Through an AUX cable connection, the switch can be connected to a variety of compatible devices, including augmentative and alternative communication (AAC) devices, switch-adapted or modified toys, and scanning systems. This allows the device to support a broad range of activities, such as communication, play, learning, and interaction with digital or assistive devices. Its adaptable design and compatibility with existing equipment enable users to configure the switch according to their individual needs and everyday environments.

This modular assistive system enables individuals with limited hand function to perform daily activities independently using a dedicated, customized handle tailored to their grasp characteristics. People with reduced hand strength or mobility due to brain lesions or spinal cord injuries often struggle because everyday tools differ widely in handle size and shape.

The system consists of an ergonomic handle optimized for the user's hand and interchangeable adapters that interface with various assistive and everyday tools. It features an intuitive, one-touch mechanism: sliding an adapter into the handle slot engages a secure push-to-lock connection, while pressing an external button enables quick release. This allows users with weak grip strength or limited fine motor control to exchange adapters independently without assistance, enhancing independence in ADLs.

A variety of handles corresponding to natural hand shapes (spherical, disc, and hook) and practical adapters (can openers, powered wheelchair joysticks, and more) are freely accessible via the "Open Platform." Users can also propose custom handle or adapter concepts through the Open platform, fostering a sustainable, continuously expanding assistive technology ecosystem driven by user demand.

Mobility Safety and SOS Assistive Device for the Visually Impaired is an open-source smart personal safety alarm designed to ensure the safe mobility of individuals who experience walking difficulties, such as the visually impaired, the elderly, and other physical minorities. It was developed to improve upon the passive response and poor usability for people with disabilities found in conventional safety alarms, allowing users to request help easily and quickly.

The assistive device consists of hardware (the alarm unit) and software (the mobile application). Designed to resemble a keycap accessory on the outside, the device can be discreetly carried as an everyday personal safety item without looking like a traditional self-defense tool. Users can press the keycap switch to respond flexibly to different situations: pressing it briefly triggers a "general assistance request" to notify those nearby when help is needed without urgency, while pressing and holding the switch for 2 seconds or longer during an emergency activates a continuous alarm for 3 minutes and sends the user's current GPS location along with an emergency rescue message to a pre-configured number via the application. Additionally, false alarms can be easily managed by pressing and holding the switch for 5 seconds or more to cancel the alert.