The Marine Optical Sensor System (MOSS) is a low-cost sensor for detecting chlorophyll-a via spectral analysis, developed for my Capstone at NYU Abu Dhabi.
1. Prototype & Baseline
The first phase used an AS7341 11-channel sensor to gather baseline data. This data was used to train a regression model, confirming the feasibility of multispectral estimation for water parameters.
Chlorophyll-a Model Results Model performance using AS7341 data.
2. Custom PCB
The final design uses the TCS3448 sensor (11 channels, 350nm–800nm) for higher resolution. To excite target fluorophores, the board includes emitters at 405nm, 450nm, 470nm, 650nm, and 850nm.
The PCB includes the sensor, microcontroller interface, and power regulation. It was manufactured and electrically tested, though full firmware development was limited by time constraints.
MOSS V1 PCB Layout
Assembled MOSS V1 Board