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Smart Agriculture — Overview

Example

A low-power, field-ready irrigation and monitoring controller. Uses an ESP32

A low-cost, low-power system on a chip (SoC) with integrated Wi-Fi and dual-mode Bluetooth.
for control, capacitive soil moisture sensing, and a 12V solenoid valve to control water. Designed to run from a small solar (see Solar Project docs).

Goals

  • Automatic, moisture-based irrigation with scheduling
  • Local fail-safe behavior (valve closes on comms loss or critical battery)
  • Low-power operation with accurate sensor calibration
  • Simple telemetry (MQTT/HTTP) and OTA updates via ESP32-C3

Warnings

  • Protect electronics from water and condensation — use IP-rated enclosures and cable glands.
  • Use protected Li-ion cells and fuses on power rails.
  • For underground or potted deployments, avoid sensors in standing water for long periods.

Quick links: BOM • Schematics • Calibration • Deployment • Firmware