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Summary: Agriculture is a science that deals with the cultivating the soil, growing crops, and raising livestock. In India, the agricultural sector contributes GDP of around 16% and 10% of export earnings. Due to the advancement in smart technologies, the different types of irrigation techniques such as hydroponics and aeroponics are utilized for higher crop yields in a small area. In this work, the smart irrigation system using Internet of Things (IoT) is proposed for hydroponic system. Further, the experimental prototype is developed, and real‐time physical data such as temperature, humidity, and water flow are monitored, controlled, and logged with the help of ThingSpeak IoT platform. Results demonstrate that the proposed system is capable of monitoring and controlling the hydroponic environment and can be able to yield higher crop production. [ABSTRACT FROM AUTHOR]