The 24LC256, as the last 3 digits imply, gives an additional 256 kilobits of EEPROM to an arduino The 24LC256 EEPROM chip can be obtained for a little over $1 on ebay. We can write anything that we want to it (as long as it's withinĢ56 kilobits of memory) and read from it any time we want. So that it can write to and read from the 24LC256 chip. In this circuit, we will show how to connect a 24LC256 to an arduino and how to program the arduino In most other kinds of non-volatile memory, this can't be done. This is how most consumer electronic devices work.ĮEPROM is also very efficient in that individual bytes in a traditional EEPROM can be independently read, erased,Īnd rewritten. This means you can turn off a device, keep it off for 3 days, and come back and turn it onĪnd it can still run the program that was programmed in it. So when you power off the boardĪnd then power it back on, the program that was written to the EEPROM can be run. ![]() This means thatĮven when the board is powered off, the EEPROM chip still retains the program that was written to it. ![]() In this project, we will show how to connect an 24LC256 EEPROM chip to an arduino micrcontroller.ĮEPROM stands for Electrically Erasable Programmanble Read-Only Memory.ĮEPROM is very important and useful because it is a non-volatile form of memory. ![]() How to Connect a 24LC256 EEPROM to an Arduino
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