A Seed Tells a Farmer's Story (Smart Grain Sorter & Moisture Tester)
Source: Stemoto Original
Contrast traditional farming (organic seeds, wooden plough, bio-pesticides) with modern farming (chemical fertilizers, tractors, threshers). Build a motorized vibration grain sorter and seed moisture probe.
Categorisation
Props & Materials Required
- •Motorized vibration mesh sifter tray (separates grain from chaff)
- •Capacitive grain seed moisture sensor probe
- •TCS3200 color sensor (sorts healthy seeds from diseased seeds)
- •ESP32 controller board
- •16x2 LCD display screen
- •DFPlayer Mini MP3 module + 3W speaker
Step-by-Step Instructions
Pour Mixed Harvest into Sifter
Pour mixed grain seeds and chaff onto the sifter tray.
Turn ON Vibration Motor
Motorized vibration sifter shakes the mesh tray! Chaff flies off while clean seeds drop through.
Test Seed Moisture Content
Insert moisture probe into seed pile.
Read Storage Safety Status
LCD displays 'Seed Moisture: 11% (SAFE FOR STORAGE!)'. Speaker explains traditional seed preservation in dried gourd (Lauki).
Why It Works & Notes
A Seed Tells a Farmer's Story follows Damjibhai's farm evolution over 50 years. Constructing seed moisture probes and motorized vibration sifters demonstrates how modern agricultural technology processes harvested grain.
Looking Around Class 5 Chapter 19: A Seed Tells a Farmer's Story | STEM Tech: Motorized Vibration Sieve Mechanical Separation & Optical Seed Quality Sorting — industrial grain processing mills.