This week marked a significant milestone in our project’s development phase. We completed all components required for Deliverable 3 (D3), which include:

Mechanical Structure

Our mechanical structure is now fully assembled and operational. The design accommodates all necessary components, ensuring stability, usability, and ergonomic access for interaction and maintenance.

Electronic Hardware: Schematics & State-Machine

We finalized the full electronic hardware design, which includes:

• Schematics for all subsystems (sensor interface, actuators, microcontroller units, power regulation, etc.);
• The state-machine implementation for our core logic (especially for sensor-actuator coordination and control loop).

All components were verified using functional testing. Sensors and actuators are integrated and responding as expected within normal operating thresholds. We’ve logged performance data and adjusted our calibration routines accordingly.

State Machine Diagram

Software Design & UML Diagrams

To structure the software stack across all platforms (firmware, frontend (web and mobile) and backend), we created a comprehensive UML package:

Use-Case Diagram

Purpose: This diagram illustrates the main actors (Patient, Caregiver, Doctor, Device, System) and their interactions with the SERENA system, highlighting key functionalities like medication dispensing, prescription registration, and alert notifications.

Sequence Diagram

Purpose: This diagram depicts the medication dispensing process, including symptom reporting and medication identification via camera, showing interactions between the System, Device, Patient, and Caregiver, with confirmation and alert handling.

Activity Diagram

Purpose: This diagram outlines the medication intake process, including symptom reporting, medication identification via camera, and handling of correct/incorrect medication, reflecting the flow from scheduling to caregiver notification.

Class Diagram