Abstract:  Attention Deficit Hyperactivity Disorder (ADHD) presents persistent challenges in task management, sustained attention, and self-regulation among school-aged children. Existing interventions, including pharmacological and behavioral therapies, often lack adaptability, immediate responsiveness, or scalability within educational environments. This paper proposes the design of a wearable Electronic Reminder Device that utilizes a real-time feedback control framework to support students with ADHD in completing educational tasks. The device enables users or caregivers to input up to three tasks through voice or touchscreen, assign priority levels using a color-coded scheme, and configure alert frequencies and modalities (audio, vibration, or light) based on environmental context. The system operates through a closed-loop control structure that continuously monitors task timing and delivers adaptive alerts at predefined intervals. By limiting cognitive load and providing multimodal feedback, the device fosters task engagement and reinforces executive functioning. The control logic emphasizes simplicity, personalization, and responsiveness, offering a promising alternative to static reminder systems. This paper details the device’s architecture, control algorithm, user interface, and operational workflow. The proposed solution contributes to the development of intelligent assistive technologies for learners with ADHD and highlights the role of control engineering in enhancing behavioral and educational outcomes.

Keywords: ADHD, Task Management, Real-Time Feedback Control, Wearable Assistive Device, Educational Technology