Is it possible to auto-uncover a Beamer frame with overlays?

Question

For a standard Beamer presentation with overlays, items are uncovered by the click of a button (or similar). I have a presentation where I would like a particular slide to auto-uncover one item at a time with a delay. Is that possible?

I include a fictive MWE below. Fictive, since the \delay{n} command does not exist. Is there something that does the equivalent? I have googled and checked the manual to the best of my imagination, but not found anything. My platform is linux, so evince is my viewer, if that makes any difference.

\documentclass{beamer}

\begin{document}

\begin{frame}{Frame 1 --- Manual uncover}

\begin{itemize}
\item<1-> Items
\item<2-> are uncovered
\item<3-> by the click
\item<4-> of a button.
\end{itemize}

\end{frame}

\begin{frame}{Frame 2 --- Auto-uncover}

\begin{itemize}
\item Items \delay{3}
\item are uncovered \delay{3}
\item every 3 seconds.
\end{itemize}

\end{frame}

\begin{frame}{Frame 3 --- Normal}

\begin{itemize}
\item<1-> Items
\item<2-> are uncovered
\item<3-> by the click
\item<4-> of a button.
\end{itemize}

\end{frame}

\end{document}

Answer 1

You can enable automatic slide changes with \transduration<0-2>{<time in seconds>}, however not all pdf viewer support this (it works with adobe reader in presentation mode).

\documentclass{beamer}

\begin{document}

\begin{frame}{Frame 2 --- Auto-uncover}
\transduration<0-2>{0.5}
\begin{itemize}[<+->]
\item Items 
\item are uncovered
\item every 3 seconds.
\end{itemize}

\end{frame}


\end{document}