An Automatic Self-sufficient Irrigation System Using Microcontrollers

摘要

Irrigation system has a big contribution in the development of horticultural yields, landscape development, and revegetate dismayed soils in dry zones or during poor rainfall. Water system likewise has different uses in crop creation, including frost protection, stifling weed development in grain fields and preventing soil erosion. This paper proposes an automatic irrigation system which senses the content of moisture in the soil and accordingly turns the pump motor ON/OFF for a certain period of time. The proposed system reduces the water wastage and reduces the human intervention. To develop the prototype, the 8051 microcontrollers have been programmed, and it receives input signal from the sensor of varying moisture conditioning of the soil. The system uses a electrical energy generated by the photovoltaic panel to energize the devices. After receiving the signal, the microcontroller gives an output that drives a relay which is used for operating the water pump for a fixed period. This is linked directly to the timer section of microcontroller. The status of the soil and water pump is displayed on the LCD which is interfaced to the microcontroller