minor updates to the instructions about how to program a new synchronizer

synchronizer/doc/synchronizer-instructions.tex

@@ -166,13 +166,20 @@ The simplest way to correct this is to reduce the playtime in the code by a few
 \caption{Hardware setup for IR decoder on Arduino.  \cite{shirriff2009multiproto}\label{fig:ir-schematic}}
 \end{figure}
 
-You will first need to construct the circuit shown in the left side of Figure~\ref{fig:ir-schematic}.  You can get a 38Khz IR receiver from Íhlutir or Miðbær Radio.  
+You will first need to construct the circuit shown in the left side of
+Figure~\ref{fig:ir-schematic}.  You can get a 38Khz IR receiver from
+Íhlutir or Miðbær Radio.  {\em Note!  This is different than an IR
+  phototransistor!}  We like the TSOP38238 you can buy from Adafruit
+at \url{www.adafruit.com/products/157}. If you use the modified
+IRrecvDump.ino included, you can simply put the left pin (with
+the bump facing you) into pin 10.  Some synchronizers may include the
+chip.  If so, it will have two holes in the left side of the box.
 
 \begin{enumerate}
 \item Copy an existing synchronizer into a new folder in \texttt{dvd/} which indicates the model of the player.
 \item Run the Arduino Program
 \item Install the IRremote library from \texttt{libraries/}\footnote{The latest version can be acquired from \url{https://github.com/shirriff/Arduino-IRremote}}.
-\item Run the IRRecvDump example program.
+\item Go to \texttt{util} and run the \texttt{IRrecvDump.ino} program.
 \item Open the ``Serial Monitor'' at 9600 baud.
 \item Push the appropriate buttons on the remote: stop, pause, play, previous
 \item Make note of the codes and encoding format