flowchart for resetting the elevator at noisebridge. tex file uses tkiz

noisebridge-elevator-reset

\documentclass{article}

\usepackage[latin1]{inputenc}
\usepackage{tikz}
\usetikzlibrary{shapes,arrows}
\begin{document}
\pagestyle{empty}


% Define block styles
\tikzstyle{decision} = [diamond, draw, fill=red!20, text width=4.5em, text badly centered, node distance=3cm, inner sep=0pt]
\tikzstyle{block} = [rectangle, draw, fill=black!20, 
    text width=10em, text centered, node distance=2.5cm, rounded corners, minimum height=4em]
\tikzstyle{line} = [draw, -latex']
\tikzstyle{cloud} = [draw, ellipse,fill=red!20, node distance=2cm, minimum height=2em]
    
\begin{tikzpicture}
    % Place nodes
    \node [rectangle, draw, thick, node distance=2cm,text width=25em, text
    centered, text= blue,scale=1.7, fill=black!0] (start) {Elevator Reset Flow Chart};
    \node [block, below of=start,text centered, text width=15em] (check) {Check the elevator "IN USE" light outside the elevator door};
    \node [decision, below of=check, text width=6em] (inuse) {is the "IN USE" light on?};
    \node [block, right of=inuse,node distance=4cm] (stop) {Your Work Here is Finished};
    \node [block, below of=inuse,node distance=3.5cm, text width=15em] (open gates) {Open both gates};
    \node [block, below of=open gates,node distance=2cm,text width=15em] (get into elevator) {Get into the Elevator};
    \node [block, below of=get into elevator,node distance=2cm,text width=13em] (close gates) {Close both gates};
    \node [block, below of=close gates,node distance=2cm,text width=23em] (press same button) {For 5 seconds, press and hold the floor button for the floor you are currently on, release button};
    \node [block, below of=press same button,text width=20em] (listen) {Slowly open inner elevator gate, listen for the loud 'CLACK' sound of the relay switch in the elevator shaft above};
    \node [left of=listen,text width=0em,node distance=7cm] (invis) {};
    %\node [block, below of=hear it?] (open gates) {Open both gates};
    % Draw edges
    \path [line] (check) -- (inuse);
    \path [line] (inuse) -- node [near start, anchor=east] {yes} (open gates);
    \path [line] (inuse) -- node[anchor=north] {no}(stop);
    \path [line] (open gates) --  (get into elevator);
    \path [line] (get into elevator) --  (close gates);
    \path [line] (close gates) --  (press same button);
    \path [line] (press same button) --  (listen);
    \path [line] (listen) -- (invis);
    \path [line] (invis) |-  (check);
\end{tikzpicture}

\end{document}