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How to use it

Class LcdHistogram

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LcdHistogram(LiquidCrystal* lcd, int posx, int posy, int length);

Creates a new histogram.
Parameters:

• lcd - An instance of LiquidCrystal previously created
• posx - Row on the screen of the first bar
• posy - Line on the screen of the first bar
• length - Length of the histogram in characters

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void push(float number);

Adds a number in the histogram.
Parameter:

• number - A single data to add at the end

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void plot();

Print the graph.

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void setBounds(float min, float max);

Set the minimum and maximum values in FIXED drawing mode..
Parameters:

• min - Each number below this value will be printed with an empty bar
• max - Each number above this value will be printed with a full bar

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void setMode(GraphMode m);

Change the way the graph is being printed.
Parameter:

• m - New mode

Enum GraphMode

Defines the drawing behavior For example, for the numbers {80, 95, 100, 70, 90}, it will print :

FIXED    :  ▅█    (with setBounds(90, 100);)
ABSOLUTE : ▆██▆▇
DYNAMIC  : ▃▇█ ▅

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FIXED

Allow you to manually set the min and max values

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ABSOLUTE

Draw each bar considering 0 as minimum value.

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DYNAMIC

Get the chart more readable by adjusting the length of the bars according to the minimum value.