[EEPROM]
Description
Write a byte to the EEPROM.
Syntax
EEPROM.write(address, value)
Parameters
address
: the location to write to, starting from 0 (int)value
: the value to write, from 0 to 255 (byte)
Returns
none
Note
If you use the 16 KB bank of virtual EEPROM, a write will take longer time (200~250us on the average) to complete; moreover, being implemented using the on-board flash, this bank has a limited life of write/erase cycles, so you may need to be careful about how often you write to it. The 200-byte CMOS bank of virtual EEPROM is faster (take 2~3us to write) and has no the above restriction, but, if you remove the onboard CMOS battery, the CMOS bank of virtual EEPROM will lose all data.
Example
#include <EEPROM.h> void setup() { for (int i = 0; i < 200; i++) EEPROM.write(i, i); } void loop() { }
See also
Libraries Reference Home
The text of the 86Duino reference is a modification of the Arduino reference and is licensed under a Creative Commons Attribution-ShareAlike 3.0 License. Code samples in the reference are released into the public domain.