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Components of Food (Smart Optical Spectrometer & Food Nutrient Tester)

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Analyze food samples (Rice, Potato, Egg white, Butter) for nutrients! A TCS34725 optical RGB color sensor detects color changes in Iodine (Starch test - Blue/Black) and Biuret (Protein test - Violet), displaying nutrient breakdown graphs on an OLED screen.

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Props & Materials Required

  • •Optical colorimeter chamber with clear cuvette test tubes
  • •TCS34725 / TCS3200 RGB optical color sensor module
  • •Safe testing reagents (Iodine solution for starch, Biuret for protein)
  • •ESP32 controller board
  • •0.96-inch OLED display screen
  • •DFPlayer Mini MP3 module + 3W speaker

Step-by-Step Instructions

1

Place Food Sample in Cuvette

Place crushed Potato sample in the test cuvette and add 2 drops of Iodine solution.

2

Insert into Optical Spectrometer

Insert cuvette into the optical colorimeter chamber.

3

Optical Sensor Analyzes Spectrum

TCS34725 sensor detects deep Blue/Black absorption spectrum (RGB: 10, 15, 60).

4

Nutrient Breakdown & Voice Analysis

OLED displays 'STARCH DETECTED! Carbohydrate Content: HIGH (82%)'. Speaker explains energy fuel roles in human metabolism!

Why It Works & Notes

Food testing reagents produce specific color changes (Iodine turns starch dark blue; Biuret turns protein purple). Using an optical RGB colorimeter sensor to quantify these color changes turns biochemistry into precise digital spectrophotometry.