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send data from arduino to nextion to definite page

Hi!. How can i send data from arduino  to nextion display,  on page1 where is text component  "t1.txt" ?

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for example


myNextion.setComponentText("t0", String(t));


here i'll send data only to the component "t0", but

how me to point  number of page, where is the component "t0"?

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