diff --git a/source/test-suite/HEADER b/source/test-suite/HEADER
index 4419b69..9755856 100644
--- a/source/test-suite/HEADER
+++ b/source/test-suite/HEADER
@@ -1,6 +1,8 @@
 \documentclass{article}
+\usepackage{graphicx}
 
 \usepackage{avremu}
+\useavremulibrary{avr.draw}
 
 \errorcontextlines=23
 
diff --git a/source/test-suite/mandelbrot.c b/source/test-suite/mandelbrot.c
index d05fc95..e877e01 100644
--- a/source/test-suite/mandelbrot.c
+++ b/source/test-suite/mandelbrot.c
@@ -68,6 +68,9 @@ int main() {
     uint8_t i;
     for (hy=1;hy<=hyres;hy++)  {
         for (hx=1;hx<=hxres;hx++)  {
+            setcolor(hx * 100, 255, 0);
+            dot(hx-1, hy-1);
+            continue;
             cx = (((float)hx)/((float)hxres)-0.5)/magnify*3.0-0.7;
             cy = (((float)hy)/((float)hyres)-0.5)/magnify*3.0;
             cx += xdelta;
@@ -104,30 +107,14 @@ int main() {
   check-start:
   \def\avr@debug#1{}
 
-  \newcommand{\mydot}[3]{%
-     \definecolor{avrfill}{RGB}{#3}%
-     \node[minimum size = 1mm,%
-           anchor=north west,
-           inner sep=0,
-           draw=avrfill,fill=avrfill]
-           at (#1 mm,#2 mm) {};%
-  }
-
   \avr@instr@run
 
-  % Dump to .dat file
-  \newwrite\coords
-  \openout\coords=\jobname.coords.dat
-  \newcommand{\mydump}[3]{%
-    \edef\@tempa{#1,#2,#3}%
-    \expandafter\write\expandafter\coords\expandafter{\@tempa}%
-  }
-  \avrdrawiter{\mydump}
-  \closeout\coords
 
-  \begin{tikzpicture}[every node/.style={draw}]
-      \avrdrawiter{\mydot}
-  \end{tikzpicture}
+  \avrdrawppm{mandelbrot.ppm}
+
+  \immediate\write18{convert mandelbrot.ppm mandelbrot.png}
+  
+  \includegraphics[width=\linewidth]{mandelbrot.png}
 
   check-end:
 */
diff --git a/tex/latex/avremu/avr.binary.tex b/tex/latex/avremu/avr.binary.tex
index 3f7b69e..bb31b41 100644
--- a/tex/latex/avremu/avr.binary.tex
+++ b/tex/latex/avremu/avr.binary.tex
@@ -54,10 +54,14 @@
 
 \def\avr@compile#1#2{%
   \ifnum\pdfshellescape=1%
+     \immediate\write18{rm #1.hex #1.elf}%
      \immediate\write18{avr-gcc -o #1.elf #1 #2}%
      \immediate\write18{avr-objcopy -O ihex -R .eeprom #1.elf #1.hex}%
+     \IfFileExists{#1.hex}{}{%
+       \errmessage{avremu: Compilation of Source code failed (#1)}%
+     }%
   \else%
-     \typeout{avr@compile: --shell-escape is disabled}%
+     \errmessage{avremu: --shell-escape is disabled; cannot compile}%
   \fi%
 }
 
@@ -67,6 +71,15 @@
   \avr@ihex@load{#2.hex}%
 }
 
+\newcommand{\avrcompile}[2][-Os -mmcu=atmega8]{%
+  \avr@compile{#2}{#1}%
+}
+
+\newcommand{\avrloadihex}[1]{%
+  \avr@ihex@load{#1}%
+}
+
+
 %%% Local Variables: 
 %%% mode: latex
 %%% TeX-master: t
diff --git a/tex/latex/avremu/avr.draw.tex b/tex/latex/avremu/avr.draw.tex
index 965f546..d79322c 100644
--- a/tex/latex/avremu/avr.draw.tex
+++ b/tex/latex/avremu/avr.draw.tex
@@ -2,9 +2,6 @@
 % We define 2 IO Registers to communicate from AVR to the Drawing
 % mechanism
 
-\usepackage{tikz}
-
-
 \newcount\avr@draw@x
 \newcount\avr@draw@y
 \newcount\avr@draw@maxx
@@ -77,21 +74,58 @@
 
 \newcommand{\avrdrawiter}[1]{%
   \avr@draw@x=0%
-  \loop%
-     \unless\ifnum \avr@draw@x > \avr@draw@maxx
-     \avr@draw@y=0%
-     {\loop%
-        \unless\ifnum \avr@draw@y > \avr@draw@maxy
-        \ifcsdef{avr@draw@\the\avr@draw@x @\the\avr@draw@y}{%
-          #1{\the\avr@draw@x}{\the\avr@draw@y}{\csuse{avr@draw@\the\avr@draw@x @\the\avr@draw@y}}%
-        }{}%
-        \advance \avr@draw@y by 1\relax%
-     \repeat}%
-     \advance \avr@draw@x by 1\relax%
-  \repeat%
+  \def\avr@iter@yloop{%
+    \avr@draw@x=0%
+    \ifnum \avr@draw@y > \avr@draw@maxy%
+       \let\avr@iter@yloop=\relax%
+    \else%
+       \let\avr@iter@xloop@rec=\avr@iter@xloop%
+       \avr@iter@xloop\relax%
+       \advance \avr@draw@y by 1\relax%
+    \fi%
+    \avr@iter@yloop%
+  }%
+  \def\avr@iter@xloop{%
+    \ifnum \avr@draw@x > \avr@draw@maxx%
+       \let\avr@iter@xloop@rec=\relax%
+    \else%
+       \ifcsdef{avr@draw@\the\avr@draw@x @\the\avr@draw@y}{%
+         #1 {\the\avr@draw@x}{\the\avr@draw@y}{\csuse{avr@draw@\the\avr@draw@x @\the\avr@draw@y}}%
+        }{% Dot not defined
+        }%
+       \advance \avr@draw@x by 1\relax%
+    \fi%
+    \avr@iter@xloop@rec%
+  }%
+  \avr@iter@yloop%
 }
-  
 
+\newcommand{\avrdrawSize}[2]{%
+  \avr@count@tmpa=\avr@draw@maxx%
+  \advance \avr@count@tmpa by 1\relax%
+  \edef#1{\the\avr@count@tmpa}%
+  \avr@count@tmpa=\avr@draw@maxy%
+  \advance \avr@count@tmpa by 1\relax%
+  \edef#2{\the\avr@count@tmpa}%
+}
+
+\newwrite\avr@file%
+
+\newcommand{\avrdrawppm}[1]{  
+  % Dump to .ppm file
+  \immediate\openout\avr@file=#1%
+  \immediate\write\avr@file{P3}%
+  \avrdrawSize{\x}{\y}%
+  \immediate\write\avr@file{\x \space \y \space 255}%
+  \def\removecomma##1,##2,##3,{##1 ##2 ##3}%
+  \newcommand{\avr@draw@ppm}[3]{%
+    \edef\@tempa{##3}%
+    \edef\@tempa{\expandafter \removecomma \@tempa,}%
+    \expandafter\immediate\expandafter\write\expandafter\avr@file\expandafter{\@tempa}%
+  }%
+  \avrdrawiter{\avr@draw@ppm}%
+  \immediate\closeout\avr@file%
+}
 
 %%% Local Variables: 
 %%% mode: latex
diff --git a/tex/latex/avremu/avr.io.tex b/tex/latex/avremu/avr.io.tex
index 0ca6977..a4ef207 100644
--- a/tex/latex/avremu/avr.io.tex
+++ b/tex/latex/avremu/avr.io.tex
@@ -15,14 +15,14 @@
 }
 
 \csdef{avr@instr@10111}#1#2#3#4#5#6#7#8\@nnil{%
-  \def\@@A{#1#2#8}%
+  \def\@@IOA{#1#2#8}%
   \avr@reg@get{#3#4#5#6#7}{\avr@Rr}%
-  \avr@debug{OUT \@@A <- \avr@Rr}%
-  \avr@io@set{\avr@Rr}{\@@A}%
+  \avr@debug{OUT \@@IOA <- \avr@Rr}%
+  \avr@io@set{\avr@Rr}{\@@IOA}%
   \avr@pc@inc%
 }
 
-% OUT
+% IN
 \def\avr@instr@IN#1#2#3{% A, R
   \def\@@A{#2}
    \avr@bin@msb@del{\@@A}{\@@A}{\@@a}%
@@ -61,11 +61,11 @@
 }
 
 \def\avr@io@set@default#1#2{%
-  \avr@error{IO Port #2 is not defined (OUT #1)}%
+  \avr@error{IO Port #2 is not defined (OUT <-#1)}%
 }
 
 \def\avr@io@get@default#1#2{%
-  \avr@error{IO Port #1 is not defined (IN -> #2)}%
+  \avr@error{IO Port #1 is not defined (IN ->#2)}%
 }
 
 \csdef{avr@io@111111@set}#1{%
diff --git a/tex/latex/avremu/avremu.sty b/tex/latex/avremu/avremu.sty
index 10f7b00..422e02a 100644
--- a/tex/latex/avremu/avremu.sty
+++ b/tex/latex/avremu/avremu.sty
@@ -8,3 +8,19 @@
 \input{avr.instr}
 \input{avr.io}
 \input{avr.testsuite}
+
+
+\newcommand{\useavremulibrary}[1]{
+  \def\do##1{%
+    \IfFileExists{##1}{%
+      \csedef{avr@atcode}{\the\catcode`\@}%
+      \makeatletter%
+      \input{##1}\relax%
+      \catcode`\@=\csname avr@atcode\endcsname%
+    }{%
+      \errmessage{avremu: Cannot find library ##1}%
+    }%
+  }%
+  \edef\@tempa{#1}%
+  \expandafter\docsvlist\expandafter{\@tempa}%
+}