Coconut Farm (Smart Perimeter & Multi-Digit Area Multiplication Grid)
Source: Stemoto Original
Design a coconut farm layout on a magnetic 10x10 grid board. Enter farm dimensions (e.g. 24m × 18m); the smart grid illuminates the rectangular land area in LEDs and calculates total yield.
Categorisation
Props & Materials Required
- •10x10 NeoPixel RGB LED grid farm board
- •4x4 matrix keypad module
- •ESP32 controller board
- •0.96-inch OLED display screen
- •DFPlayer Mini MP3 module + 3W speaker
Step-by-Step Instructions
Input Farm Dimensions
Key in Length = 8m and Width = 6m on the keypad.
Watch 8x6 Grid Matrix Light Up
The 10x10 LED matrix illuminates an 8-column by 6-row rectangular zone (48 LEDs).
Compute Area & Perimeter
OLED displays 'Area = 8 × 6 = 48 sq meters | Perimeter = 2*(8+6) = 28 meters'.
Coconut Yield Calculation
If 1 sq meter produces 3 coconuts — Speaker announces: 'Total Harvest Yield: 48 × 3 = 144 Coconuts!'
Why It Works & Notes
The Coconut Farm chapter focuses on multi-digit multiplication, land area (Length × Width), and perimeter calculations. Illuminating 2D rectangular grid areas on an LED matrix proves why Area = L × W.
Maths Mela Class 5 Chapter 9: Coconut Farm | STEM Tech: 2D Spatial Area Interpolation & Multi-Digit Matrix Calculation — land surveying and GIS mapping.