Yes, it is possible to get sound output from a serial port. Sure, it sounds terrible, but what did you expect. [markrages] ttyplay program first resamples the WAV file to the baud rate of the ...

An input port might be connected to a photoelectric eye to turn on the reader when an object enters the reader field. An output device might be connected to a door that opens when a tag is read.

The GPIO ports or "PCA9535RGER" are configured as Inputs by default and are to be configured as outputs based on application need. However default value on output pin when they are configured as ...

If this current variation is too high, consider using a port expander with constant-current (internally current limited) outputs such as MAX6956 and MAX6957, or use techniques such as shown in Figures ...

Anker's charging station is a bit too expensive at $170, though. If the high price tag made you hesitant about buying one, ...