To sustain the rising demand for water for agriculture, this research paper presents a smart irrigation system with the use of the Internet of Things (IoT) which can help to minimize manual labor and water wastage. This paper consists of numerous literature reviews where different sensors and components used in current irrigation systems were investigated and the use of IoT technology in irrigation systems, as well as the obstacles to be faced, was explored. This paper aims to develop an IoT-based smart irrigation system using a microcontroller and various sensors to improve existing systems for the comfort and convenience of users not only by monitoring moisture and weather data but also by monitoring any intrusions, water in a storage tank, and also faulty parts in the system through the use of a user-friendly mobile application. The results and limitations of our proposed system will be discussed and suggestions to improve our system further will be given