External memory for configuration storage
hi guys,
i thinking of project include several similar units networked together. each unit should have own configuration. arduino should write configuration data memory. means external memory required.
after short googling discovered 24lc256. capacity enormously greater needs ... heck ... costs 3 usd.
the fact store configuration means not have worry cycles of write (it not data logger).
i have 1 concern. possible address specific area in memory? not convenient if have read/write large blocks in ram of arduino.
i thinking of project include several similar units networked together. each unit should have own configuration. arduino should write configuration data memory. means external memory required.
after short googling discovered 24lc256. capacity enormously greater needs ... heck ... costs 3 usd.
the fact store configuration means not have worry cycles of write (it not data logger).
i have 1 concern. possible address specific area in memory? not convenient if have read/write large blocks in ram of arduino.
hi guys,the arduino contains 1,024 bytes of rewriteable eeprom, eeprom specified rewriteable 100,000 times before failure. check out eeprom.h library.
i thinking of project include several similar units networked together. each unit should have own configuration. arduino should write configuration data memory. means external memory required.
after short googling discovered 24lc256. capacity enormously greater needs ... heck ... costs 3 usd.
the fact store configuration means not have worry cycles of write (it not data logger).
i have 1 concern. possible address specific area in memory? not convenient if have read/write large blocks in ram of arduino.
the 24lc256 eeproms i2c devices. you can read , write individual bytes. if write on 1 byte @ time, need understand 'write page size'.
read datasheet of eeprom choose. it reduce headaches encounter.
chuck.
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