diff --git a/Vorträge/arduino/bilder/while.dia b/Vorträge/arduino/bilder/while.dia
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diff --git a/Vorträge/arduino/bilder/while.tex b/Vorträge/arduino/bilder/while.tex
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+% Graphic for TeX using PGF
+% Title: /home/stefan/ctdo/ctdo/Vorträge/arduino/bilder/while.dia
+% Creator: Dia v0.97.3
+% CreationDate: Thu Jan  7 23:18:36 2016
+% For: stefan
+% \usepackage{tikz}
+% The following commands are not supported in PSTricks at present
+% We define them conditionally, so when they are implemented,
+% this pgf file will use them.
+\ifx\du\undefined
+  \newlength{\du}
+\fi
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+\pgfsetmiterjoin
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