arduino-docs
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| Both sides previous revision Previous revision Next revision | Previous revision | ||
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arduino-docs [2015/04/16 22:45] mer [ESP8266WiFi] |
arduino-docs [2015/07/19 01:19] (current) apedro [EEPROM] |
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| Line 8: | Line 8: | ||
| ==== Wire ==== | ==== Wire ==== | ||
| - | |||
| content | content | ||
| ==== EEPROM ==== | ==== EEPROM ==== | ||
| + | EEPROM functionality is similar to the standard Arduino library with the exception of having to declare memory size and committing writes. | ||
| + | ===example=== | ||
| + | <code c++> | ||
| + | #include <EEPROM.h> | ||
| - | content | + | void setup() |
| + | { | ||
| + | //Init EEPROM, note the size requirement. I believe 4096B is the maximum available. | ||
| + | //You could use a smaller amount/size. | ||
| + | EEPROM.begin(4096); | ||
| + | for( int i = 0; i < 4096; i++ ) | ||
| + | { | ||
| + | EEPROM.write(i,i); | ||
| + | } | ||
| + | EEPROM.commit(); //note here the commit! | ||
| + | } | ||
| + | </code> | ||
| + | NOTE: EEPROMAnything can be used with one simple modification. | ||
| + | Find the EEPROMAnything.h and add EEPROM.commit(); after the EEPROM.write(ee++, *p++); | ||
| + | |||
| + | EEPROMAnything provides nice functionality to save any type of variable including structers. | ||
| + | <code c++> | ||
| + | #include <EEPROMAnything.h> | ||
| + | |||
| + | struct eepromInfoType | ||
| + | { | ||
| + | uint8_t MyUnsigned8BitInt; | ||
| + | char MyCharArray[25] | ||
| + | } myStructOriginal, myStructCopy; | ||
| + | |||
| + | void setup() | ||
| + | { | ||
| + | myStructOriginal.MyUnsigned8BitInt = 0; //assign some value | ||
| + | strcpy( myStructOriginal.MyCharArray, "Less than 25 chars" ); //assign some value | ||
| + | EEPROM_writeAnything( 0, myStructOriginal ); //remember to modify EEPROM_writeAnything by adding .commit(). | ||
| + | //Lets read it back | ||
| + | EEPROM_readAnything( 0, myStructCopy ); | ||
| + | } | ||
| + | |||
| + | void loop() | ||
| + | { | ||
| + | //nothing here | ||
| + | } | ||
| + | </code> | ||
| ===== ESP Specific Libs ===== | ===== ESP Specific Libs ===== | ||
| Line 75: | Line 116: | ||
| **Connect with static IP** | **Connect with static IP** | ||
| + | |||
| + | If you experience problems regarding DNS resolving check out https://github.com/esp8266/Arduino/issues/369 | ||
| <code c> | <code c> | ||
| #include <ESP8266WiFi.h> | #include <ESP8266WiFi.h> | ||
arduino-docs.1429224349.txt.gz · Last modified: 2015/04/16 22:45 by mer