diff --git a/vortrag/bilder/battery.jpg b/vortrag/bilder/battery.jpg
new file mode 100644
index 0000000..c118a95
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diff --git a/vortrag/bilder/cpu.jpg b/vortrag/bilder/cpu.jpg
new file mode 100644
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diff --git a/vortrag/bilder/lcd.jpg b/vortrag/bilder/lcd.jpg
new file mode 100644
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diff --git a/vortrag/hardware.tex b/vortrag/hardware.tex
index ad80e4b..6d1ab8e 100644
--- a/vortrag/hardware.tex
+++ b/vortrag/hardware.tex
@@ -84,9 +84,11 @@
   \begin{columns}
     \begin{column}{6cm}
         \begin{itemize}
+		\item The evil daystar has regular downtimes.
+		\item Backlights need lots of power.
 		\item Lithium is the only real option.
-		\item 600mAh battery powers a backlight for at least one day.
-		\item Integrated charge controlle is independend from the firmware.
+		\item A 600mAh battery powers a backlight for at least one day.
+		\item Integrated charge controller is independend from the firmware.
 	\end{itemize}
     \end{column}
     \begin{column}{6cm}
@@ -98,13 +100,28 @@
   \begin{columns}
     \begin{column}{6cm}
         \begin{itemize}
-		\item Lithium is the only real option.
-		\item 600mAh battery powers a backlight for at least one day.
-		\item Integrated charge controlle is independend from the firmware.
+		\item Today everyone does arduino.
+		\item We wanted a more powerfull CPU
+		\item NXP donated one of their ARM Cortex-M3 controllers to us.
+		\item But: only 32kb flash...
 	\end{itemize}
     \end{column}
     \begin{column}{6cm}
-        \includegraphics[height=4cm]{bilder/battery.jpg}
+        \includegraphics[height=4cm]{bilder/cpu.jpg}
+    \end{column}
+  \end{columns}
+\end{frame}
+\begin{frame}{LCD}
+  \begin{columns}
+    \begin{column}{6cm}
+        \begin{itemize}
+		\item Displays are more expensive than one might think
+		\item But: Nokia made lots of them :)
+		\item Found cheap and nice looking LCDs for old Nokia phones.
+	\end{itemize}
+    \end{column}
+    \begin{column}{6cm}
+        \includegraphics[height=4cm]{bilder/lcd.jpg}
     \end{column}
   \end{columns}
 \end{frame}