GoogleCharts newDataChart(uint16_t points, bool extraData);

creating an object of the class (points - the number of points of reference in the stack (FIFO), extraData - using an additional data column (by default false)).

void GoogleCharts.push(uint64_t / String X, float A, float B);

add a row of data to the stack (X - 1 column of data, A - 2 column of data, B - 3 column of data (optional with extraData = true)).

void GoogleCharts.setLegendIntervale (uint8_t intervale);

label interval for x-axis values.

void GoogleCharts.setMinValue(bool useMinValue, int minValueA,  int minValueB);

using minimum values ​​for plotting charts (useMinValue turns on the function, minValueA is the minimum value for the first chart, minValueB is the minimum value for the second chart (if extraData = true)).

void GoogleCharts.setCurveFunction(bool curveFunction);

graph smoothing, works only with Line Charts.

void GoogleCharts.setDateFormat(bool useDateFormat, String dateFormat);

use time formatting with preset (default "HH: mm"), can be used to format unix epoch time.

void GoogleCharts.setLeftStyle(String label, String title, String HTMLcolor);

setting the style of the left Y-axis.

void GoogleCharts.setRightStyle(String label, String title, String HTMLcolor);

setting the style of the right Y-axis.

void GoogleCharts.setHorizontalTitle(String title);

top caption for Google Charts.

void GoogleCharts.setHorizontalLabel(String label);

X chart column name.

bool GoogleCharts.ready();

returns bool true if the stack has data to display, bool false if the stack is empty.

String GoogleCharts.getCharts(uint8_t type, uint16_t width, uint16_t height);

returns a string to be embedded in an HTML form (type - visualization type (0 - Line Chart, 1 - Pie Chart, 2 - Area Chart, 3 - Stepped Area Chart), width - render width (pixels), height - render height (pixels)).