Waste Management & Vermicomposting (Smart Organic Decay Monitor Bin)
Source:
Turn kitchen waste into nutrient-rich compost! Build a smart vermicomposting bin equipped with soil moisture probes, temperature sensors, and gas sensors to monitor redworm health and organic waste decay speed.
Categorisation
Props & Materials Required
- •Mini vermicomposting bin model with soil, organic peelings & redworms
- •Capacitive soil moisture sensor probe
- •DS18B20 waterproof temperature sensor probe
- •MQ-135 air quality gas sensor (detects ammonia/methane decay gases)
- •ESP32 controller board with 16x2 LCD display
- •DFPlayer Mini MP3 module + 3W speaker
Step-by-Step Instructions
Load Organic Kitchen Waste
Add vegetable peels and dry leaves to the vermicompost bin.
Monitor Soil Temperature & Moisture
DS18B20 reads 'Temp: 24°C'. Moisture sensor reads 'Soil Moisture: 62% (IDEAL FOR REDWORMS)'.
Gas Sensor Detects Aerobic Decay
MQ-135 gas sensor detects low ammonia gas (good aeration, no bad odor!).
Compost Harvest Notification
After decay cycle, LCD displays 'HUMUS READY FOR PLANTS! 100% Organic Bio-Fertilizer produced!'. Speaker explains soil nutrient recycling!
Why It Works & Notes
Vermicomposting relies on redworms and aerobic bacteria breaking down organic food waste into fertile humus at ideal temp (20-30°C) and moisture (60%). Tracking soil sensors in a smart compost bin demonstrates circular waste management science.