eeprom

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ciao tutti. sto lavorando ad un progetto con rfid rc522. il progetto prevede la lettura della tessera autorizzata, volevo sapere un modo semplice per poter contare il numero di autorizzazioni e quindi limitare il passaggio della tessera. ho letto un pò in rete e avevo pensato alla libreria eeprom. voi avete qualche consiglio? con la eeprom ho un pò di difficoltà, potreste aiutarmi con qualche esempio capire come assegnare una cella di memoria alla tessera appena viene letta? grazie

p.s. non chiedo nessuno di scrivere il codice per me, ma solo qualche esempio

arriva... arriva...


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