I-OT.Net As Internet of Things (IoT) Cloud in Internet-Based Control System Applications

With the rapid development and deep application and collaboration of new concepts and technologies brought by the Internet of Things (IoT) and cloud computing around the world, all walks of life are gradually moving towards a smart modern society. This technology has gradually penetrated almost all fields, from simple technology to complex technology. Where the basic system of the Internet of Things consists of 3 things, namely: hardware/physical (things), internet connection, and cloud data center as a place to store or run the application. This paper introduces a new Internet of Things cloud in Indonesia, namely i-ot.net. And examples of its application for Miniature Temperature Control System and Smart Farming are given .


Introduction
Internet of Things (IoT) is an emerging area in which billions of smart objects are connected using the internet to share data and resources (Chahal et al., 2020). IoT technology allows objects around us to be connected to the internet network. Where every object connected to the internet can be accessed anytime and anywhere. For example, we can remotely turn on and off appliances at home (lights, televisions, stoves, heaters, etc.) as long as the equipment is connected to the IoT cloud and an internet connection is available. In general, the IoT architecture consists of an Application Layer, Middleware Layer, Network Layer, and Physical Layer, as shown in Figure-1 (Ravidas et al., 2019).  (Ravidas et al., 2019) Application Layer: aims to provide services to end-users. This layer consists of application nodes that handle application logic as well as data and presentation semantics. This node receives data from the middleware and processes it depending on the requirements of the end-user and the type of service provided. In addition, the application layer includes an Application Programming Interface (API) to facilitate communication with the middleware and user interfaces that end-users use to access services.
Middleware Layer: to ensure connectivity and interoperability in the IoT ecosystem. It consists of intermediate nodes which process the data received from the lower layer and pass it to the application layer.
Network Layer: to support the network and data transfer between nodes. The network layer implements the communication protocols required for data exchange in the IoT ecosystem.
Physical Layer: to characterize the sensing and control capabilities of the IoT system. This layer consists of physical nodes such as sensors and actuators that sense the environment and interact with it in response to user changes or requests. These nodes generate resources (sense data) which are passed to application nodes via the network and middleware layer.
There are many examples of applying IoT technology, a few examples: • Smart Home (internet-based home security system, can find out the condition of the house and control household appliances and energy consumption via the internet network) (Iqbal et al., 2018;Muralidhara et al., 2020).
• Internet connection, and • Cloud data center as a place to store or run the application. Each is shown in Figure 2 (anonymous, 2019).

Material and Methods
As described above, the basic IoT system consists of 3 things, namely: hardware/physical (objects), internet connection, and a cloud data center as a place to store or run applications. This paper introduces a new IoT cloud in Indonesia, namely i-ot.net. And to test its reliability it was tested for Miniature Temperature Control Systems and Smart Farming. To be able to use this IoT Cloud service, please create an account and get the settings needed for remote control of the two plants, via the https://i-ot.net address. Furthermore, the data is used for settings in the microcontroller program. An architectural description of the Miniature Temperature Control System and Smart Farming, as shown in Figure 3 and   In Figure 3, the Miniature Temperature Control System is designed to be used as a simple temperature monitoring and control solution. The microcontroller module used is NodeMCU. With the supporting circuits, this system is equipped with an LM35 sensor. Based on the reading of this temperature sensor, it is used to decide whether the measured temperature is following the desired temperature value or not. The way to control it is by turning the fan on and off during the startup time as needed. Control can be done automatically, or by pressing a button on the Mo-5 th ISRM 2020 409 bile Phone via an internet connection. An internet connection must be connected between a microcontroller device that is equipped with an LM35 sensor, the i-ot.net as IoT Cloud, and the IoT MQTT Panel application on the Mobile Phone.
Whereas in Figure-4, Smart Farming is designed to be used as a solution for monitoring and controlling soil quality, pH, temperature, moisture, or others. As in Figure-3, the microcontroller used is NodeMCU. With the supporting circuits, this system is equipped, among others, with a soil moisture sensor. Based on the results of the soil moisture sensor reading, it is used to decide whether agricultural land needs to be watered or not. Watering can be done automatically, or by pressing a button on the Mobile Phone via an internet connection. An internet connection must be connected between a microcontroller device that is equipped with sensors, the i-ot.net as IoT Cloud, and the IoT MQTT Panel application on the Mobile Phone.

Conclusion
It has been tested, the i-ot.net as the Internet of Things (IoT) Cloud, for monitoring and control of Miniature Temperature Control Systems and Smart Farming. From the test results of both the Miniature Temperature Control System and Smart Farming, monitoring and controlling temperature and soil moisture can be carried out through a Mobile Phone using the IoT MQTT Panel on Android. From the results of this test, the IoT Cloud i-ot.net can then be used widely in Indonesian and international society.