Vending Machine

How to count to 25 cents with coins of 5, 10 and 25 cents. The circuit is constructed using FFs and OR, AND gates.

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\documentclass[border=3mm]{standalone}
% Tikz
\usepackage{tikz}
\usetikzlibrary{arrows,shapes.gates.logic.US,shapes.gates.logic.IEC,calc}
% Notation
\usepackage{amsmath, siunitx}
% Tikz Library
\usetikzlibrary{calc}
\tikzset{every picture/.style={line width=0.3mm}}
% Circuitikz
\usepackage[european,straightvoltages,americanresistor]{circuitikz}
\ctikzset{logic ports=ieee}
% Custom
\tikzset{sr-ff/.style={flipflop, flipflop def={t1=S, t3=R, t6=Q}}}
\begin{document}
\tikzstyle{branch}=[fill, shape=circle, minimum size=3pt, inner sep=0pt]
    \begin{circuitikz}[line cap=round, line join =round]
    
        % First State
        \node[sr-ff] (q0) at (0,0) {};
        
        % Cents
        \node[circle, draw, shift={(0,10)}] (5cents) at (q0) {5 cents};     
        \draw[red] (5cents) -- ++(0,-7.8) coordinate (5cents_line) to[short,-*] +(44.7,0);
        
        \node[circle, draw, shift={(2,0)}] (10cents) at (5cents) {10 cents};
        \draw[blue] (10cents) -- ++(0,-5.2) coordinate (10cents_line) to[short,-*] +(42.7,0);
        \node[circle, draw, shift={(2,0)}] (25cents) at (10cents) {25 cents};
        \draw[orange] (25cents) -- ++(0,-3.6) coordinate (25cents_line) to[short,-*] +(40.7,0);
        
        % Q0 State
        \draw (q0.pin 1) -- +(-1,0) node [left] {\texttt{1}}
 
 
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