UNIT 4 – IoT SENSORS AND SMART IRRIGATION

Unit 4 – IoT Sensors & Smart Irrigation

Duration: 8–10 minutes

1. What IoT sensors are in farming

IoT refers to interconnected devices that collect and share data. In farming, IoT sensors help farmers identify, describe, and monitor real‑time field conditions.

Farmers typically use:

·       Soil moisture probes

·       Weather stations

·       Temperature and humidity sensors

These devices measure key variables such as soil moisture, temperature, humidity and light. The data are sent to a phone app or online dashboard where farmers can explain what is happening and apply decisions based on evidence.

2. How IoT supports smart irrigation

IoT sensors give farmers real‑time feedback on water needs.

Sensors help farmers:

·       Determine when to irrigate

·       Decide how much water to apply

·       Analyse patterns of soil moisture over time

This leads to:

·       Reduced water use

·       Prevention of over‑watering

·       Better environmental protection

3. Automation for efficiency

Some systems can automatically adjust irrigation schedules based on sensor readings.

This allows farmers to:

·       Save time

·       Focus on other tasks

·       Apply more precise water management