The microcontroller on the Arduino and Genuino AVR based board has EEPROM: memory whose values are kept when the board is turned off (like a tiny hard drive). EEPROM library enables you to read and ...

FansElectronics Public Arduino Library, ... EEPROM Library V2.0 for Arduino. Written by: Christopher Andrews. ... You can view all the examples here. Library functions. EEPROM.read( address ) This ...

Since the ST24C04 512-byte device in question has an I 2 C bus it’s a straightforward add-on for an Arduino Mega, so we’re shown the wiring for which only a couple of pull-down resistors are ...

Before arduino for example, there was an eeprom library for AVR which had an “update()” function, and if a byte was the same in eeprom, then the byte was just skipped and not written.

Meet the Arduino Compatible RFID Reader Module. It can hold card data for up to five cards, takes seconds to program, and holds card data in EEPROM memory, which means that the cards are saved ...