This creation provides an automatic sprinkler device, which is used in irrigation systems such as agriculture. It uses Arduino boards to connect sensing elements to determine whether the sprinkler should sprinkle water and control the amount of water at any time. The photoelectric module, reservoir, water level sensor, motor, Arduino board, and water pipe will stop watering when the water level sensor detects that there is enough water.本創作提供一種自動灑水裝置,係用於農業等灌溉系統中,其利用Arduino板連接感測元件來判定是否該讓灑水器進行灑水並隨時控制水量,該自動灑水裝置包括:太陽能光電模組、蓄水池、水位感測器、馬達、Arduino板以及水管,其藉由水位感測器偵測到水量足夠便會停止灑水。