Water scarcity has become the most important challenge facing the world and a source of fear to the global community from the spread of famines due to the lack of agricultural production. For this reason, researchers seek to optimize the use of food resources, including water wealth. This project contributes to the legalization of the use of water resources. One of these methods is to solve the problem of a decrease in water resources, is drip irrigation systems. An affordable system was developed using soil moisture FC-28 hygrometer sensor compatible with arduino uno R3 and sending electrical signals based on voltage difference due to increased or decreased water in the soil to the monitor through the arduino for decision to operate irrigation pumps. The system is controlled by a software that allows the user to know the current state of the soil to choose the type of plant to determine the amount of water and the possibility of adding new types of plants to the program library and other features.
In this paper a control AT89C51 microcontroller system was proposed to used in the design of alarm emergency in virtual small city. The proposed system includes personal computer (PC), monitoring, control circuit which has a microcontroller. When the accident accrued, the system sends alarm from any anywhere compromised with a number of the street to the emergency office and emergency alarms bureau official received by the monitoring that appear on the map and this point sends warning.
Modern security systems are beginning using advanced technologies to detect any security breaches via a combination of devices, programming methods and notify security personnel of monitoring of any security breach, starting with people entering the building, ending with monitor the electronic archive in computers, monitor employees-customers calls, and banking accounts. Which consists of two stages, as the first stage relates to building an Arduino system to detect employees entering the building using the Arduino UNO, passive infrared sensor (PIR) hardware then requesting from the employee to go to the security audit platform to compare the face image with the database images using the viola-jones algorithm facial recognition program based on SURF algorithm. If the image is identical, he is allowed to enter and if the face image does not match the set of images in data set, he is asked to wait in the queries office. Also, the system can send all data to the central security authority with the date and times of entry for persons through the WhatsApp using Twilio IoT application.
The world is developing at an amazing speed through modern technologies to control things and microcontrollers have become a preoccupation of most developers of remote and proximity control devices in various industrial, household, and educational sectors, so it is necessary to study them in-depth and know the differences between Arduino and Raspberry in terms of hardware and software so that the developer is aware of what they can use it to build his project. Both Arduino and Raspberry are microcontrollers, but the first works without the need to connect to a computer, and works through an open source program as it is a single board and deals with a simple program every time and can connect to the Internet, while Raspberry connects to a computer via USB It deals with the language of Linux and Ruby and can perform mathematical and arithmetic operations and encrypt Bitcoin currencies, for these reasons, all these concepts will be explained in this paper, and that any technician or programmer can choose the best electronic parts Arduino or Raspberry in order to get the project done better.
<span>Wireless Sensor Network (WSN) is one of the most important elements of the Internet of Things paradigm. Energy consumption is a vital issue in IoT and WSN. Security primitives in the IoT are energy consuming. Addressed the security issue for transmitted data by IoT sensor node add another challenge in term of energy consumption. finding the satisfactory solutions that reduce power consumption at the same time as making sure the required security services is not always an easy undertaking. Therefore, in this article, we proposed an efficient hybrid model for secure transmission of data from sensor nodes to receivers in WSN applications. The proposed model includes two algorithms Rivest–Shamir–Adleman (RSA) and efficient data collection and dissemination (EDCD). The key idea behind the proposed model is to prevent to secure sensed data if no significant change between the current data and the last transmitted data by the apply EDCD1 algorithm, which that will help in saving the sensor node energy. The reason for that the size of cipher data is so large compared to the sensed data, which that will increase the energy consumption. The outcome results shown that the proposed model has a high performance compared to RSA in term of energy consumption.</span>
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