Global increasing population is driving a change to more intelligent agricultural methods. Food security is a serious worry for most nations due to an increase in unpredictable weather patterns, dwindling natural resources, and a shortage of arable land. Consequently, the agricultural industry is using the Internet of Things (IoT) to boost production and operational efficiency. This article discusses the use of various IoT devices and the advantages they offer over conventional farming techniques. It also identifies the challenges and limitations of these devices in agriculture.