Designing a GSM-based Smart Irrigation System Using Moisture Sensor

Abstract

A precise description of the equipment used to design a sensor is presented and a working circuit is created. A distributed wireless network of soil moisture and temperature sensors is deployed in plant root zones. Each sensor node involved a soil-moisture probe, a temperature probe, a micro controller for data acquisition, and transceiver; these are sure mindshare transmitted to a microcontroller-based receiver. This gateway permits the automated activation of irrigation when the threshold values of soil moisture and temperature are reached communication between the sensor nodes and the data receiver is via the SMS. This receiver unit also has a duplex communication link based on a cellular-internet interface or GSM, which is a packet-oriented mobile data service use din 2G and 3G cellular global system for mobile communications (GSM). The Internet connection allows the data inspection in real-time on a website, where the soil moisture and temperature level share graphically displayed through an application interface and stored in a data base server. This access also enables direct programming of scheduled irrigation schemes and trigger values in the receiver according the crop growth and season management.

Keywords: Arduino, equipment, GPRS, GSM, IDE, microcontroller, power supply, relay circuit, Sensor, SIMCARD