MojiBloki.sty

\tikzset{
	controller/.style = {draw, fill=blue!20, rectangle, minimum height=3.5em, minimum width=6em},
	subblock/.style= {draw, fill=blue!5, rectangle, minimum height=3.5em, minimum width=6em},
	pidblocks/.style = {draw, fill=green!5, rectangle, minimum height=3.5em, minimum width=6em, text width= 6em},
	sum/.style = {draw, circle, node distance=1cm, inner sep=0.15cm},
	input/.style = {coordinate},
	output/.style ={coordinate},
	block/.style = {draw, fill=white, rectangle, minimum height=2em, minimum width=2em},
	pinstyle/.style ={pin edge={to-,thin,black}},
	dot/.style  = {anchor=base,fill,circle,inner sep=1pt}
}

\tikzset{%
	saturation block/.style={%
		draw, minimum size = 0.3cm,
		path picture={
			% Get the width and height of the path picture node
			\pgfpointdiff{\pgfpointanchor{path picture bounding box}{south west}}%
			{\pgfpointanchor{path picture bounding box}{north east}}
			\pgfgetlastxy\x\y
			% Scale the x and y vectors so that the range
			% -1 to 1 is slightly shorter than the size of the node
			\tikzset{x=\x*.4, y=\y*.4}
			%
			% Draw annotation
			\draw [very thin] (-1,0) -- (1,0) (0,-1) -- (0,1); 
			\draw [very thick] (-1,-.7) -- (-.7,-.7) -- (.7,.7) -- (1,.7);
		},
		append after command={\pgfextra{\let\mainnode=\tikzlastnode}
			node[above right] at (\mainnode.north west) {#1}%
		}	
	}
}

\tikzset{%
	Filt block/.style = {%
		draw, minimum size = 0.8cm,
		path picture={
			% Get the width and height of the path picture node
			\pgfpointdiff{\pgfpointanchor{path picture bounding box}{south west}}%
			{\pgfpointanchor{path picture bounding box}{north east}}
			\pgfgetlastxy\x\y
			% Scale the x and y vectors so that the range
			% -1 to 1 is slightly shorter than the size of the node
			\tikzset{x=\x*.4, y=\y*.4}
			%
			% Draw annotation
			\draw [very thin] (-1,-1) -- (-1,1) (-1,-1) -- (1,-1); 
			\draw [very thick] (-0.95, -1) arc  [x radius =1.9, y radius = 1.4, start angle = 180,  end angle = 90] ;
		},
		append after command={\pgfextra{\let\mainnode=\tikzlastnode}
			node[above right] at (\mainnode.north west) {#1}%
		}
	}	
}

\tikzset{%
	Pctrl block/.style={%
		draw, minimum size = 0.8cm,
		path picture={
			% Get the width and height of the path picture node
			\pgfpointdiff{\pgfpointanchor{path picture bounding box}{south west}}%
			{\pgfpointanchor{path picture bounding box}{north east}}
			\pgfgetlastxy\x\y
			% Scale the x and y vectors so that the range
			% -1 to 1 is slightly shorter than the size of the node
			\tikzset{x=\x*.4, y=\y*.4}
			%
			% Draw annotation
			\draw [very thin] (-1,-1) -- (-1,1) (-1,-1) -- (1,-1); 
			\draw [very thick] (-1,.4) -- (1,.4);
		},
		append after command={\pgfextra{\let\mainnode=\tikzlastnode}
			node[above] at (\mainnode.north) {#1}%
		}	
	}
}

\tikzset{%
	PIctrl block/.style={%
		draw, minimum size = 0.8cm,
		path picture={
			% Get the width and height of the path picture node
			\pgfpointdiff{\pgfpointanchor{path picture bounding box}{south west}}%
			{\pgfpointanchor{path picture bounding box}{north east}}
			\pgfgetlastxy\x\y
			% Scale the x and y vectors so that the range
			% -1 to 1 is slightly shorter than the size of the node
			\tikzset{x=\x*.4, y=\y*.4}
			%
			% Draw annotation
			\draw [very thin] (-1,-1) -- (-1,1) (-1,-1) -- (1,-1); 
			\draw [very thick]   (-0.95,-1) -- (-0.95, -0.2) -- (0.9,.4);
		},
		append after command={\pgfextra{\let\mainnode=\tikzlastnode}
			node[above] at (\mainnode.north) {#1}%
		}	
	}
}

\tikzset{%
	Difer block/.style={%
		draw, minimum size = 0.8cm,
		path picture={
			% Get the width and height of the path picture node
			\pgfpointdiff{\pgfpointanchor{path picture bounding box}{south west}}%
			{\pgfpointanchor{path picture bounding box}{north east}}
			\pgfgetlastxy\x\y
			% Scale the x and y vectors so that the range
			% -1 to 1 is slightly shorter than the size of the node
			\tikzset{x=\x*.4, y=\y*.4}
			%
			% Draw annotation
			\draw [very thin] (-1,-1) -- (-1,1) (-1,-1) -- (1,-1); 
			\draw [very thick] (-0.97,-1) -- (-0.97, 0.6);
		},
		append after command={\pgfextra{\let\mainnode=\tikzlastnode}
			node[above right] at (\mainnode.north west) {#1}%
		}				
	}
}

\tikzset{%
	Integ block/.style={%
		draw, minimum size = 0.8cm,
		path picture={
			% Get the width and height of the path picture node
			\pgfpointdiff{\pgfpointanchor{path picture bounding box}{south west}}%
			{\pgfpointanchor{path picture bounding box}{north east}}
			\pgfgetlastxy\x\y
			% Scale the x and y vectors so that the range
			% -1 to 1 is slightly shorter than the size of the node
			\tikzset{x=\x*.4, y=\y*.4}
			%
			% Draw annotation
			\draw [very thin] (-1,-1) -- (-1,1) (-1,-1) -- (1,-1);  
			\draw [very thick] (-1,-1) -- (1, 1);
		},
		append after command={\pgfextra{\let\mainnode=\tikzlastnode}
			node[above] at (\mainnode.north) {#1}%
		}				
	}
}	

\tikzset{%
	Limit block/.style={%
		fill = none, minimum size = 0.5cm,
		path picture={
			% Get the width and height of the path picture node
			\pgfpointdiff{\pgfpointanchor{path picture bounding box}{south west}}%
			{\pgfpointanchor{path picture bounding box}{north east}}
			\pgfgetlastxy\x\y
			% Scale the x and y vectors so that the range
			% -1 to 1 is slightly shorter than the size of the node
			\tikzset{x=\x*.4, y=\y*.4}
			%
			% Draw annotation
			\draw [thick] (-1,1) -- (-0.8, 0.5) -- (0.8,0.5) -- (1,1);
			\draw [thick] (-1,-1) -- (-0.8, -0.5) -- (0.8,-0.5) -- (1,-1);
		},
		append after command={\pgfextra{\let\mainnode=\tikzlastnode}
			node[above] at (\mainnode.north) {#1}%
		}				
	}
}			

\tikzset{%
	mul above/.style={%
		draw, minimum size = 0.3cm,
		path picture={
			% Get the width and height of the path picture node
			\pgfpointdiff{\pgfpointanchor{path picture bounding box}{south west}}%
			{\pgfpointanchor{path picture bounding box}{north east}}
			\pgfgetlastxy\x\y
			% Scale the x and y vectors so that the range
			% -1 to 1 is slightly shorter than the size of the node
			%	\tikzset{x=\x*.4, y=\y*.4}
			%
			% Draw annotation
			\draw [thick] (-1,-1) -- (1,1); 
			\draw [thick] (-1,1) -- (1,-1);
		},
		append after command={\pgfextra{\let\mainnode=\tikzlastnode}
			node[above](A1) at ([yshift=0.5cm]\mainnode.north) {#1}%
			[->] (A1) edge (\mainnode.north)			   
		},
	}
}

\tikzset{%
	mul below/.style={%
		draw, minimum size = 0.3cm,
		path picture={
			% Get the width and height of the path picture node
			\pgfpointdiff{\pgfpointanchor{path picture bounding box}{south west}}%
			{\pgfpointanchor{path picture bounding box}{north east}}
			\pgfgetlastxy\x\y
			% Scale the x and y vectors so that the range
			% -1 to 1 is slightly shorter than the size of the node
			%	\tikzset{x=\x*.4, y=\y*.4}
			%
			% Draw annotation
			\draw [thick] (-1,-1) -- (1,1); 
			\draw [thick] (-1,1) -- (1,-1);
		},
		append after command={\pgfextra{\let\mainnode=\tikzlastnode}
			node[below](A1) at ([yshift=-0.5cm]\mainnode.south) {#1}%
			[->] (A1) edge (\mainnode.south)			   
		},
	}
}

\tikzset{%
	mul left/.style={%
		draw, minimum size = 0.3cm,
		path picture={
			% Get the width and height of the path picture node
			\pgfpointdiff{\pgfpointanchor{path picture bounding box}{south west}}%
			{\pgfpointanchor{path picture bounding box}{north east}}
			\pgfgetlastxy\x\y
			% Scale the x and y vectors so that the range
			% -1 to 1 is slightly shorter than the size of the node
			%	\tikzset{x=\x*.4, y=\y*.4}
			%
			% Draw annotation
			\draw [thick] (-1,-1) -- (1,1); 
			\draw [thick] (-1,1) -- (1,-1);
		},
		append after command={\pgfextra{\let\mainnode=\tikzlastnode}
			node[left](A1) at ([xshift=-0.5cm]\mainnode.west) {#1}%
			[->] (A1) edge (\mainnode.west)			   
		},
	}
}	

\tikzset{%
	mul right/.style={%
		draw, minimum size = 0.3cm,
		path picture={
			% Get the width and height of the path picture node
			\pgfpointdiff{\pgfpointanchor{path picture bounding box}{south west}}%
			{\pgfpointanchor{path picture bounding box}{north east}}
			\pgfgetlastxy\x\y
			% Scale the x and y vectors so that the range
			% -1 to 1 is slightly shorter than the size of the node
			%	\tikzset{x=\x*.4, y=\y*.4}
			%
			% Draw annotation
			\draw [thick] (-1,-1) -- (1,1); 
			\draw [thick] (-1,1) -- (1,-1);
		},
		append after command={\pgfextra{\let\mainnode=\tikzlastnode}
			node[right](A1) at ([xshift=0.5cm]\mainnode.east) {#1}%
			[->] (A1) edge (\mainnode.east)			   
		},
	}
}
\tikzset{%
	notch block/.style={%
		draw, minimum size = 0.8cm,
		path picture={
			% Get the width and height of the path picture node
			\pgfpointdiff{\pgfpointanchor{path picture bounding box}{south west}}%
			{\pgfpointanchor{path picture bounding box}{north east}}
			\pgfgetlastxy\x\y
			% Scale the x and y vectors so that the range
			% -1 to 1 is slightly shorter than the size of the node
			\tikzset{x=\x*.4, y=\y*.4}
			%
			% Draw annotation  
			\draw [very thin] (-1,-1) -- (1,-1);  
			\draw [thick] (-0.5, 0.8) arc  [x radius =0.4, y radius = 2.4, start angle = 90,  end angle =15] (-1, 0.8) -- (-0.5, 0.8)  ;
			\draw [thick] (0.5, 0.8) arc  [x radius =0.4, y radius = 2.4, start angle = 90,  end angle = 165] (1, 0.8) -- (0.5, 0.8) ;
		},
		append after command={\pgfextra{\let\mainnode=\tikzlastnode}
			node[above right] at (\mainnode.north west) {#1}%
		}				
	}
}	
\tikzset{%
	bandstop block/.style={%
		draw, minimum size = 0.8cm,
		path picture={
			% Get the width and height of the path picture node
			\pgfpointdiff{\pgfpointanchor{path picture bounding box}{south west}}%
			{\pgfpointanchor{path picture bounding box}{north east}}
			\pgfgetlastxy\x\y
			% Scale the x and y vectors so that the range
			% -1 to 1 is slightly shorter than the size of the node
			\tikzset{x=\x*.4, y=\y*.4}
			%
			% Draw annotation  
			\draw [very thin] (-1,-1) -- (1,-1);  
			\draw [thick] (-0.5, 0.8) arc  [x radius =0.8, y radius = 1.8, start angle = 90,  end angle =0] (-1, 0.8) -- (-0.5, 0.8)  ;
		},
		append after command={\pgfextra{\let\mainnode=\tikzlastnode}
			node[above right] at (\mainnode.north west) {#1}%
		}				
	}
}

\tikzset{%
	set gear dots/.style={
		gear dots/.style={dash pattern=on 4pt off 4pt, dash phase=#1}},
	set gear dots=0pt,
	pics/gears/.style args={size #1 at (#2,#3) and size #4 at (#5,#6)}{code={
			\tikzmath{%
				\r1 = #1/2; \r2 = #4/2;
				\gm = atan2(#3-#6, #2-#5);
				\th = acos((\r1 == \r2) ? 0 : (\r2-\r1) / veclen(#5-#2, #6-#3));
				coordinate \c, \t;
				\c1 = (#2, #3); \t1 = (\c1) + (360-\th+\gm:\r1);
				\c2 = (#5, #6); \t2 = (\c2) + (\th+\gm:\r2);
			}
			\draw [black!80, thick, fill=gray!25] (\c1) circle [radius=\r1];
			\draw [black!80, thick, fill=gray!25] (\c2) circle [radius=\r2];
			\draw [gray, ultra thick, postaction={draw=gray!50, gear dots, ultra thick}] 
			(\t2) arc (\th+\gm:360-\th+\gm:\r2) -- 
			(\t1) arc (360-\th+\gm:360+\th+\gm:\r1) -- cycle;
		}}}