diff --git a/Hardware/pdf/BSPD_ESF_Submit.pdf b/Hardware/pdf/BSPD_ESF_Submit.pdf
index 83de4ea..c2013fb 100644
Binary files a/Hardware/pdf/BSPD_ESF_Submit.pdf and b/Hardware/pdf/BSPD_ESF_Submit.pdf differ
diff --git a/Hardware/pdf/BSPD_ESF_Submit.tex b/Hardware/pdf/BSPD_ESF_Submit.tex
index 861992e..9e7f03b 100644
--- a/Hardware/pdf/BSPD_ESF_Submit.tex
+++ b/Hardware/pdf/BSPD_ESF_Submit.tex
@@ -33,11 +33,11 @@
 \ctikzset{bipole annotation style/.style={color=black}}
 \ctikzset{bipole label style/.style={color=black}}
 
-\tikzset{
-  block/.style = {rectangle, draw, text centered, minimum height=2em},
-  sensor/.style = {rectangle, draw, thick, blue, line width=2pt, text centered, minimum height=2em},
-  arrow/.style = {thick,->,>=stealth}
-}
+% \tikzset{
+%   block/.style = {rectangle, draw, text centered, minimum height=2em},
+%   sensor/.style = {rectangle, draw, thick, blue, line width=2pt, text centered, minimum height=2em},
+%   arrow/.style = {thick,->,>=stealth}
+% }
 
 \begin{document}
 \lhead{\large Car 313, 06.03.2025, Rev. 1}
@@ -54,7 +54,7 @@ The BSPD PCB is located in the front "Sensor-Node" (mainly there to transfer the
 \begin{multicols}{2}
 	\textbf{Test Procedure}
 	\begin{enumerate}
-		\item apply external test current
+		\item apply external test current to the simulation coil
 		\item brake hard (with brake pressure $\geq 30 \unit{\bar}$)
 	\end{enumerate}
 	
@@ -66,26 +66,40 @@ The BSPD PCB is located in the front "Sensor-Node" (mainly there to transfer the
 	\quad \quad 12 windings $\longrightarrow$ test current $\approx 1.034 \unit{A}$
 \end{multicols}
 
-\begin{tikzpicture}[node distance=1cm]
-	% Nodes
-	\node (current) [block] {Current source};
-	\node (sensor) [sensor, right of=current, xshift=3cm] {Lem HO-100s sensor};
-	\node (bpressure) [block, below of=sensor, yshift=-2cm] {Brake Pressure Sensor};
-	\node (bspd) [block, right of=sensor, xshift=4cm, yshift=-1cm] {BSPD PCB};
-	\node (lvms) [circle, draw, above of=bspd, yshift=2cm] {+12V LVMS};
-	
-	% Connections
-	\draw [arrow] (current.east) -- (sensor.west);
-	\draw [arrow] (sensor.east) -- ++(2, 0) node[midway, above] {sen\_1} -- (bspd.west);
-	\draw [arrow] (bpressure.east) -- ++(5, 0) node[midway, above] {sen\_2} -- (bspd.west);
-	\draw [arrow] (lvms.south) -- (bspd.north);
-	\draw [arrow] (bspd.east) -- ++(1, 0) node[midway, above] {SDC\_OUT};
-	\draw [arrow] (bspd.west) ++(0, -0.5) -- ++(-1, 0) node[midway, above] {SDC\_IN};
-	
-	% Ground symbol
-	\node (ground) [below of=bspd, yshift=-1cm] {};
-	\draw (bspd.south) -- (ground) node[midway, right] {};
-	
-\end{tikzpicture}
+\begin{figure}[H]
+	\centering
+	\begin{tikzpicture}[node distance=1cm]
+		% % Nodes
+		% \node (current) [block] {Current source};
+		% \node (sensor) [sensor, right of=current, xshift=3cm] {Lem HO-100s sensor};
+		% \node (bpressure) [block, below of=sensor, yshift=-2cm] {Brake Pressure Sensor};
+		% \node (bspd) [block, right of=sensor, xshift=4cm, yshift=-1cm] {BSPD PCB};
+		% \node (lvms) [circle, draw, above of=bspd, yshift=2cm] {+12V LVMS};
+		%
+		% % Connections
+		% \draw [arrow] (current.east) -- (sensor.west);
+		% \draw [arrow] (sensor.east) -- ++(2, 0) node[midway, above] {sen\_1} -- (bspd.west);
+		% \draw [arrow] (bpressure.east) -- ++(5, 0) node[midway, above] {sen\_2} -- (bspd.west);
+		% \draw [arrow] (lvms.south) -- (bspd.north);
+		% \draw [arrow] (bspd.east) -- ++(1, 0) node[midway, above] {SDC\_OUT};
+		% \draw [arrow] (bspd.west) ++(0, -0.5) -- ++(-1, 0) node[midway, above] {SDC\_IN};
+		%
+		% % Ground symbol
+		% \node (ground) [below of=bspd, yshift=-1cm] {};
+		% \draw (bspd.south) -- (ground) node[midway, right] {};
+		\draw[black, rounded corners, thick] (0,4) rectangle (3,6) node[midway]{Current source};
+		\draw[blue, rounded corners=24pt, line width=16pt] (5,4) rectangle (8,6) node[midway]{LEM HO-50S};
+		\draw[black, rounded corners, thick] (5,0) rectangle (8,2) node[midway, text width=2.5cm]{Brake Pressure Sensor};
+		\draw[black, rounded corners, thick] (12,2) rectangle (15,4) node[midway]{BSPD PCB};
+		\draw[->, rounded corners, ultra thick] (8.3,5) -- (10,5) -- (10,3.5) -- (12,3.5);
+		\draw[->, rounded corners, ultra thick] (8,1) -- (10,1) -- (10,2.5) -- (12,2.5);
+		\draw[rounded corners, very thick] (3,5.6) -- (5.6,5.6) -- (4.6,5.2) -- (5.4,5.2) -- (4.6,4.8) -- (5.4,4.8) -- (4.6,4.4) -- (3,4.4);
+		\draw[->, ultra thick] (13.5,5) -- (13.5,4);
+		\draw[->, ultra thick] (13.5,2) -- (13.5,1);
+		\draw(13.5,5.5) node[align=left]{SDC in};
+		\draw(13.5,0.5) node[align=left]{SDC out};
+	\end{tikzpicture}
+	\caption{current simulation schematic}
+\end{figure}
 
 \end{document}