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8 bit microcontrollers are used in automatically controlled devices including implantable medical devices, power tools, toys, office machines, engine control systems, remote controls, appliances as well as other types of embedded systems
Mobile technology is the technology used for cellular communication.
CDMA (Code-Division Multiple Access) refers to any of several protocols used in second-generation (2G) and third-generation (3G) wireless communications.
The Global System for Mobile Communications (GSM) is a standard developed by the European Telecommunications Standards to describe the protocols for second-generation (2G) digital cellular networks used by mobile devices such as mobile phones and tablets.
SPDT means Single Pole Double Throw switch
DPDT means Double Pole Double Throw Switch
Limit switch is a switch operated by the motion of a machine part or presence of an object.
Relays are the primary protection as well as switching devices in most of the control processes or equipments.
8 bit microcontroller means CPU or ALU can process 8 bit data at a time. 8-bit CPU and ALU architectures are those that are based on registers, address buses, or data buses of that size