Save of energy is one of the big issues in the world. As part of energy saving, smart irrigation can save water. In addition to saving water, smart irrigation can maximize productivity and reduce extra manpower. A smart irrigation system should continuously monitor the amount of water, determine if watering is required for the plants, supply the exact or approximate amount of water required for the plants, and lastly discontinue the water supply when the required amount has been delivered to the plants. It can be said that plant monitoring system is a part of smart irrigation. This project focuses on monitoring soil moisture, as well as, temperature, humidity, and light intensity.