EEPROM:get()
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get()
描述 从EEPROM中读取任何类型的数据或者对象。
EEPROM.get(address, data)
address: 读取的位置,从0开始 (int 整型) data: 读取的数据,可以是一个基本类型(例如:float 浮点型)或者是一个自定义的结构体。
数据传递的引用
#include <EEPROM.h> struct MyObject{ float field1; byte field2; char name[10]; }; void setup(){ float f = 0.00f; //Variable to store data read from EEPROM. int eeAddress = 0; //EEPROM address to start reading from Serial.begin( 9600 ); while (!Serial) { ; // wait for serial port to connect. Needed for Leonardo only } Serial.print( "Read float from EEPROM: " ); //Get the float data from the EEPROM at position 'eeAddress' EEPROM.get( eeAddress, f ); Serial.println( f, 3 ); //This may print 'ovf, nan' if the data inside the EEPROM is not a valid float. // get() can be used with custom structures too. eeAddress = sizeof(float); //Move address to the next byte after float 'f'. MyObject customVar; //Variable to store custom object read from EEPROM. EEPROM.get( eeAddress, customVar ); Serial.println( "Read custom object from EEPROM: " ); Serial.println( customVar.field1 ); Serial.println( customVar.field2 ); Serial.println( customVar.name ); } void loop(){ /* Empty loop */ } |
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