- Completed Raspberry Pi 5 setup.
- Connected monitor and peripherals for development and visualization.
- Installed and configured Raspberry Pi Desktop OS.
- Integrated MAX30102 optical sensor module.
- Initial soldered configuration failed; stabilized temporarily using jumper wires.
- Developed script to plot raw signal variation during finger contact.
- Mounted 16mm lens camera on tripod for reflected green-light capture.
- Evaluating 6mm lens for improved near-field focus.
- Added logging and error handling.
- Simulated perfusion changes using ice-induced vasoconstriction and arm elevation.
- Used opposite hand as internal control.
- MAX30102 confirmed measurable signal dip.
- Camera computed mean green-channel intensity per frame to track perfusion change.
- Observed green intensity reduction consistent with hemoglobin absorption.
- Preparing final dark-environment capture setup to reduce ambient interference.
- Designing PCB layout in KiCad to transition from breadboard prototype.
