© The Author(s), under exclusive license to APress Media, LLC, part of Springer Nature 2022
G. R. KanagachidambaresanInternet of Things Using Single Board Computershttps://doi.org/10.1007/978-1-4842-8108-6_2

2. IoT Sensors and Their Interfacing Protocols

G. R. Kanagachidambaresan1  
(1)
Chennai, India
 

Sensors can detect specific entities or functions by looking for them in the environment [1]. Electromechanical, optoelectrical, or electronic equipment can all be used to create these devices. Detectors for physical presence, such as flame or metal, can be found. Others include sensors that monitor gas and chemical concentrations and other sorts of sensors. There are additional varieties that can detect motion or closeness, while others can monitor ...

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