EEPROM:put()
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put()
描述 Write any data type or object to the EEPROM.
EEPROM.put(address, data)
address: the location to write to, starting from 0 (int) data: the data to write, can be a primitive type (eg. float) or a custom struct
A reference to the data passed in
This function uses EEPROM.update() to perform the write, so does not rewrites the value if it didn't change.
#include <EEPROM.h>
struct MyObject{
float field1;
byte field2;
char name[10];
};
void setup(){
Serial.begin(9600);
while (!Serial) {
; // wait for serial port to connect. Needed for Leonardo only
}
float f = 123.456f; //Variable to store in EEPROM.
int eeAddress = 0; //Location we want the data to be put.
//One simple call, with the address first and the object second.
EEPROM.put( eeAddress, f );
Serial.println("Written float data type!");
/// put() is designed for use with custom structures too.
//Data to store.
MyObject customVar = {
3.14f,
65,
"Working!"
};
eeAddress += sizeof(float); //Move address to the next byte after float 'f'.
EEPROM.put( eeAddress, customVar );
Serial.println( "Written custom data type!")
Serial.println( "View the example sketch eeprom_get to see how you can retrieve the values!" );
}
void loop(){ /* Empty loop */ }
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