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root / arduino-1.0 / libraries / EEPROM / examples / eeprom_write / eeprom_write.ino @ 58d82c77

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/*
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 * EEPROM Write
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 *
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 * Stores values read from analog input 0 into the EEPROM.
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 * These values will stay in the EEPROM when the board is
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 * turned off and may be retrieved later by another sketch.
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 */
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#include <EEPROM.h>
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// the current address in the EEPROM (i.e. which byte
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// we're going to write to next)
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int addr = 0;
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void setup()
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{
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}
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void loop()
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{
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  // need to divide by 4 because analog inputs range from
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  // 0 to 1023 and each byte of the EEPROM can only hold a
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  // value from 0 to 255.
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  int val = analogRead(0) / 4;
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  // write the value to the appropriate byte of the EEPROM.
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  // these values will remain there when the board is
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  // turned off.
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  EEPROM.write(addr, val);
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  // advance to the next address.  there are 512 bytes in 
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  // the EEPROM, so go back to 0 when we hit 512.
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  addr = addr + 1;
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  if (addr == 512)
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    addr = 0;
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  delay(100);
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}