The development of information technology is increasingly advanced and fast. Many technologies enter into other fields such as agriculture. With the development of technology, the agricultural sector has also experienced developments in the pattern of farming without soil media, known as hydroponics. Hydroponics requires irrigation through pipes that are flowed by an electric pump that is operated manually. There needs to be a standby human power to operate it. It is possible that humans can be negligent and cause the irrigation system to be disrupted so that the plants die. Making the pump run automatically is a way to reduce the occurrence of these problems. This automatic pump system will be controlled by a microcontroller to irrigate the plants automatically and can meet the required nutrient sources. One of the implementations of an irrigation control system is that it is necessary to keep water and nutrients in accordance with the right size for certain plants. With an automatic irrigation system on hydroponic plants, it can save energy and make it easier to work in caring for plants with hydroponic growing media. One of the technologies used is the Arduino IDE application. To connect with sensor tools and website applications, a microcontroller is needed as a control center. Making website applications using the PHP programming language. As for the microcontroller using the C + + programming language.