IoT-Based Smart Precision Agriculture & Automated Irrigation System with Cloud Analytics
ESP32 micro-controller based IoT system monitoring soil moisture, NPK values, weather, and automated drip irrigation via Blynk & MQTT.
Problem Statement
Inefficient manual flood irrigation wastes up to 60% of water in agriculture, while unpredictable soil fertility loss reduces crop yields for smallholder farmers.
Proposed Solution
An automated solar-ready IoT node using ESP32 with moisture and temperature telemetry that drives solenoid drip valves based on threshold logic and uploads telemetry to an interactive web analytics cloud.
Key System Features
System Architecture & Pipeline
End-to-end data transformation pipeline from input capture to output visualization.
Project Modules Breakdown
Sensor Data Acquisition Unit
Module 1Periodically samples DHT22, soil capacitive sensor, and rain module via ESP32 ADC channels.
Actuator & Relay Drive Controller
Module 2Controls 5V/12V DC water pump relay with safety timeouts to prevent flooding.
Cloud Communication Gateway
Module 3Transmits JSON packets over Wi-Fi via lightweight MQTT / HTTP REST to ThingSpeak.
Farmer Web & Mobile Dashboard
Module 4Displays live moisture gauges, historical irrigation volume charts, and pump control toggle.
Complete Technology Stack
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