A Raspberry Pi 4 Model B, a water pump, an Android app, a rain sensor, a soil moisture sensor, a relay,and other components are used in this paper to demonstrate a smart agriculture system. By tracking soil moisture and rainfall and turning on the water pump as necessary, the device automates irrigation. Once the Raspberry Pi has digested the sensor data, it may control the relay to turn on or off the water pump. Farmers can manually operate the pump and examine sensor data from a distance using an Android app. This technique lowers labor costs, increases crop productivity, and optimizes water use. Using IoT technology, it is a workable way to update farming operations.