The Cleanest Village (Smart Waste Weight & Tally Sorter Bin)
Source:
Set up a village waste collection station with 3 smart sorting bins (Organic Wet, Plastic Dry, Metal E-Waste). Load cell sensors under bins track waste weight in kg, display tally charts, and calculate village cleanliness scores.
Categorisation
Props & Materials Required
- •3 mini waste bins (Organic, Plastic, Metal) mounted on scale bases
- •3x HX711 load cell weight scale sensors
- •PN532 NFC reader (scans waste items)
- •ESP32 controller board
- •16x2 LCD display screen
- •DFPlayer Mini MP3 module + 3W speaker
Step-by-Step Instructions
Scan Waste Item
Scan a plastic bottle item card on the NFC reader. Speaker: 'PLASTIC BOTTLE! Sort into DRY PLASTIC BIN!'
Drop into Correct Bin
Drop bottle into Plastic bin. Load cell measures weight increase (+40 grams).
Read Village Waste Tally
LCD displays: 'Organic: 1.2 kg | Plastic: 0.8 kg | Metal: 0.4 kg | Total: 2.4 kg'.
Cleanliness Score Announcement
Press 'Village Report'. Speaker celebrates: '90% waste properly sorted! Village awarded GOLD CLEANLINESS BADGE!'
Why It Works & Notes
The Cleanest Village chapter links environmental sanitation with math data handling. Weighing sorted waste on digital load cell bins and generating tally charts teaches civic responsibility through practical statistics.