the reader itself. For example, a device such as an electronic eye may be connected to a general purpose input (GPI) port so that when an object breaks the beam of the electronic eye the reader begins ...

The first program anyone writes for a microcontroller is the blinking LED which involves toggling a general-purpose input/output (GPIO) on and off. Consequently, the same GPIO can be used to read ...

Industrial manufacturers must often attempt to forecast equipment requirements when installing a new system or building a new factory. Projecting communication ...