Internet of things (IoT): a technology review, security issues, threats, and open challenges

Abstract

<p><span>Internet of Things (IoT) devices are spread in different areas such as e-tracking, e-commerce, e-home, and e-health, etc. Thus, during the last ten years, the internet of things technology (IoT) has been a research focus. Both privacy and security are the key concerns for the applications of IoT, and still face a huge number of challenges. There are many elements used to run the IoT technology which include hardware and software such as sensors, GPS, cameras, applications, and so forth. In this paper, we have analyzed and explain the technology of IoT along with its elements, security features, security issues, and threats that attached to each layer of IoT to guide the consideration of researchers into solve and understand the most serious problems in IoT environment.</span></p>

Low-cost SARS-CoV-2 vaccine homogenization system for Pfizer-BioNTech covid-19 vials

“…When the IR transmitter emits radiation, it reaches the object and some of the radiation is reflected back to the IR receiver. Based on the intensity of the reflected radiation reaching the IR receiver, the output of the sensor is defined [22]. The module has a digital output whose sensitivity can be adjusted with a potentiometer.…”