Latex+beamer: dual screen presentation

you can include notes into your slides. just use \note{txt} inside of your frame environment. you can also make use of overlays and align all notes in itemize environment

[code language="latex"]
\note<overlay>[item]{txt}
[/code]

you can chose the style of your output pdf by the following options in your preamble

[code language="latex"]
\setbeameroption{hide notes} % default
\setbeameroption{show notes}
\setbeameroption{show notes on second screen=left} %
\setbeameroption{show only notes}
[/code]

when choosing "second screen" you get a pdf containing your standard slides and one showing your notes. get a pdf viewer which can actually distinguish between both (e.g. pdfpc).

use pdfpc as such

[code language="bash"]
pdfpc --notes=left --duration=30 ~/presentation.pdf
[/code]