An internet of things (IoT) connection system comprises an IoT hub including first processing circuitry, and a local IoT router including second processing circuitry. The local IoT router is connected to the IoT hub via a network. The first processing circuitry is configured to execute a first driver to connect the IoT hub to a private cloud to which a first device is to connect, and execute a second driver to connect the IoT hub to a second device. The second processing circuitry is configured to execute a third driver to connect a third device to the IoT router. The first driver, the second driver and the third driver are generated according to only device definitions and command definitions.