<p>An IoT gateway is a physical device or software program that serves as the connection point between the cloud and <a href="https://www.techtarget.com/iotagenda/definition/Internet-of-Things-IoT"&gt;internet of things</a> devices, such as <a href="https://www.techtarget.com/whatis/definition/controller"&gt;controllers&lt;/a>, sensors and smart devices.</p> <p>IoT is used in enterprises and industries and can be found in consumer products. IoT <a href="https