CASE STUDY · IoT · ML · 2024

E-Nose

87% accuracy classifying pineapple ripeness from gas emissions using low-cost hardware.

CLIENT
SLTC Research University · Thesis
MY ROLE
Researcher & hardware engineer
DURATION
9 months
87%RIPENESS DETECTION ACCURACY
2024YEAR
9 monthsDURATION
4 toolsCORE STACK
E-Nose
01 · CHALLENGE

The challenge

Pineapple ripeness is judged by eye, which causes waste across the supply chain.

02 · APPROACH

What we built

An electronic nose built on Raspberry Pi with a gas-sensor array and an ML classifier that reads ripeness from fruit emissions.

01
Sensor array designSelected and calibrated gas sensors on a Raspberry Pi rig.
02
Dataset & featuresCollected emission readings across ripeness stages and engineered features.
03
Model & deviceCompared classifiers, then deployed the best model on-device.
[ SCREENSHOT · MAIN VIEW ]
SCREENSHOT · MAIN VIEW
[ SCREENSHOT · DETAIL ]
SCREENSHOT · DETAIL
03 · OUTCOME
87%RIPENESS DETECTION ACCURACY

87% accuracy classifying pineapple ripeness from gas emissions using low-cost hardware.

Client quote goes here: one or two sentences on the result and the working relationship.
CLIENT NAME · SLTC Research University · Thesis
04 · STACK
Raspberry PiGas sensorsPythonscikit-learn
// NEXT STEP

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