Modifica valori da display

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salve, sto realizzando un termostato con due valori di temperatura da settare.
per la gestione del display mi è stata molto utile la guida di http://www.coagula.org/content/it/pages/tutorial-come-gestire-menu-e-display-lcd-con-arduino.
sono arrivato al punto di visualizzare il valore da settare nella pagina del menù desiderata. ora vorrei modificare tale valore tramite dei pulsanti. ho caricato questi due valori nella eeprom in modo che posso prelevarli in ogni situazione.
chiedo il vostro aiuto dato che non come poter interagire con questi valori stampati sul display.
vi ringrazio.

perdonami ma on ho capito  :smiley-roll:


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