Programming 32-bit Microcontrollers in C

Day 12 Capturing User Inputs

The Plan

If analog inputs are the essence of the interface between an embedded-control application and the outside world, digital inputs are, sadly, the true foundation of the user interface. As wrong as this might seem, for a long time now we humans have been trained to reduce our interaction with them, the machines, to buttons and switches. Probably this is because the alternative, using speech, gestures, and vision, requires such a leap in the complexity of the interface that we have rather learned to accept the limitation and reduced ourselves to communicate essentially through ones and zeros. Perhaps this explains the attention and enthusiasm that some recent innovations are producing as pioneered by video ...