diff --git a/figures/pcb_bottom.png b/figures/pcb_bottom.png
new file mode 100644
index 0000000..5f0a027
--- /dev/null
+++ b/figures/pcb_bottom.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:750196343cc9caaf3a5455a73b9aa8f896924a18ca9ac2700b847ca724b6d2c3
+size 136564
diff --git a/figures/pcb_top.png b/figures/pcb_top.png
new file mode 100644
index 0000000..ad4a518
--- /dev/null
+++ b/figures/pcb_top.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:f76353e7d4368dc8c0a2bd6d00c115f02bd8d95d2b64e6512921d67d62e6e4f9
+size 88327
diff --git a/mainpart.tex b/mainpart.tex
index 355bc26..5c90eef 100644
--- a/mainpart.tex
+++ b/mainpart.tex
@@ -1,47 +1,17 @@
-\section{Main part of Thesis}
+\section{The printed circuit board}
 
-%Začnime rovnicou
-%
-%\begin{equation}\label{r:2}
-%\frac{\ud^2y}{\ud t^2}+\frac{\ud y}{\ud t}+y =0, \qquad y(0)=1, \quad
-%y\,'(0)=15.
-%\end{equation}
-%
-%Grafický priebeh riešenia tejto rovnice vidíme na Obrázku \ref{o:2}.
-%
-%\begin{figure}[ht!]
-%\centering
-%\includegraphics[width=.6\textwidth,angle=0]{relaxcas.pdf}
-%\caption{Teplotná závislosť\/ spinovo-mriežkového relaxačného
-%času}\label{o:3}
-%\end{figure}
 
-%\tabcolsep=3pt % sirka stlpcov
-%\renewcommand{\arraystretch}{1.2} % riadkovanie
-%\begin{table}[ht!]
-%\centering
-%\caption{Parametre získané z~meraní spinovo-mriežkových relaxačných
-%časov $T_1$}\label{t:2}
-%\medskip
-%\newcolumntype{d}{D{,}{,}{-1}}
-%\begin{tabular}{||c||d|d|d|d|d||}
-%\hhline{|t:==t:==:==:t|}
-%\multicolumn{1}{||c||}{}&\multicolumn{1}{c|}{PP --
-%01}&\multicolumn{1}{c|}{PP -- 05}&\multicolumn{1}{c|}{PP --
-%10}&\multicolumn{1}{c|}{PP -- 16}&\multicolumn{1}{c||}{PP -- 22} \\
-%\hhline{|:==:==:==:|}
-%C $\cdot 10^8$~(s$^{-2}$) & 10,1 & 10,0 & 11,0 & 9,2 & 8  \\
-%\hhline{||-|-|-|-|-|-||}
-%$\tau_0 \cdot 10^{-14}$~(s) & 2,63 & 1,44 & 0,95 & 2,21 & 10,83  \\
-%\hhline{||-|-|-|-|-|-||}
-%$E_{\text a}$~(kJ) & 34,26 & 8,33 & 39,76 & 37,31 & 31,86  \\
-%\hhline{||-|-|-|-|-|-||}
-%$T_{\min}$~(K) & 354 & 367 & 367 & 369 & 367  \\
-%\hhline{||-|-|-|-|-|-||}
-%$T_{1\min}$~(ms) & 141 & 160 & 157 & 175 & 181  \\
-%\hhline{||-|-|-|-|-|-||}
-%$\Delta M_2$~(Gs$^2$) & 5,49 & 5,66 & 5,16 & 5,09 & 5,02  \\
-%\hhline{|b:==b:==:==:b|}
-%\end{tabular}
-%\end{table}
+\begin{figure}[ht!]
+\centering
+\includegraphics[width=.7\textwidth,angle=0]{pcb_top}
+\caption{The top layer of the PCB designed to serve as a client node}\label{f:pcb_top}
+\end{figure}
+
+
+\begin{figure}[ht!]
+\centering
+\includegraphics[width=.7\textwidth,angle=0]{pcb_bottom}
+\caption{The bottom layer of the PCB designed to serve as a client node}\label{f:pcb_bottom}
+\end{figure}
+
 
diff --git a/tukethesis.pdf b/tukethesis.pdf
index 4110e7b..c8024ec 100644
--- a/tukethesis.pdf
+++ b/tukethesis.pdf
@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:76ee8189edbaf4461ca93d7f7ddccb9b0b7c0967e1c19ae5f6a62f0acc59b834
-size 2295202
+oid sha256:819544f8ae2cf5c03b68e65097c1c5009c39f10b57b8130bb84089ccc001d7d1
+size 2462392