The advancement of microsensors in the age of IoT and Industry 4.0

Sensors are devices that receive input and produce an analog or digital output signal. They are found in almost every aspect of human activity, from robotics, medical devices, consumer electronics, automobiles, to residential appliances and industrial automation [1]. In recent years, the rapid increase of interconnected devices that are connected to the internet has defined a new technological term: the “Internet of Things” (IoT). IoT has created a demand for acquiring, collecting, and processing vast amounts of data, thus shaping the upcoming new industrial revolution “Industry 4.0” [2].