more fixing (#210)

Co-authored-by: Daniel Puratich <dpuratic@uwaterloo.ca>

Author: DanielJPuratich

src/led.tex

@@ -68,7 +68,7 @@ \subsection{Transistors}
 
 \noindent FETs, ideally, do not require any power consumption to keep them enabled, whereas BJTs require current to be supplied constantly. This means FETs are typically preferred when power consumption is a critical consideration; this is primarily for higher power circuits in which excessive power consumption directly results in a need for expensive cooling systems. BJTs are a much older technology and are easier to fabricate, making them far preferred when optimizing for cost.\footnote{A solid understanding of both types of transistors is important for common interview questions!} \newline
 
-\noindent Another consideration is low vs. high side switching when using a transistor to enable and disable (aka switch) a load. The solution given in Figure \ref{fig:led_circuit} demonstrates low side switching. There are numerous implications of this design decision that are explored further in Section \ref{section:switching}.
+\noindent Another consideration is low vs. high side switching when using a transistor to enable and disable (aka switch) a load. The solution given in Figure \ref{fig:led_circuit} demonstrates low side switching. % There are numerous implications of this design decision that are explored further in Section \ref{section:switching}. % TODO : include this sentence when switching.tex is completed.
 
 \subsection{Controlling the LED from a Microcontroller}
 
@@ -126,8 +126,8 @@ \subsection{Pulse Width Modulation}
 
 \subsection{Follow-ups}
 \begin{itemize}
-    \item Prpose a solution using a MOSFET instead of a BJT.
-    \item Propose a solution without using any transistors. 
+    \item Propose a solution using a MOSFET instead of a BJT. % This is much simpler than using a BJT and is probably what people will think of when initially considering this question. 
+    % \item Propose a solution without using any transistors. % This is a lot more troll and answers could go in a lot of different directions. I'm removing it for
 \end{itemize}
 
 \end{document}

src/signalling.tex

@@ -53,7 +53,7 @@ \subsection{Digital Signalling}
 \begin{figure}[H]
     \begin{center}
         \begin{circuitikz}[american]
-            \draw (0, 0) node[nigfete, rotate=270](fet){};
+            \draw (0, 0) node[nigfete, bodydiode, rotate=270](fet){};
             \draw (fet.G) -- ++ (0, 1) node[vcc]{+3V3};
             \draw (fet.S) -- ++ (-2, 0) node[anchor=east]{A};
             \draw (fet.S) ++ (-1, 0) to[resistor] ++ (0, 2) node[vcc]{+3V3};