From 9e48dfc4fd53a2bc53367568077fbea44f88eda2 Mon Sep 17 00:00:00 2001 From: "David A. Mellis" Date: Sat, 6 Oct 2007 13:04:46 +0000 Subject: Moving libraries out from inside targets and creating bootloaders directory. --- .../EEPROM/examples/eeprom_write/eeprom_write.pde | 38 ++++++++++++++++++++++ 1 file changed, 38 insertions(+) create mode 100644 libraries/EEPROM/examples/eeprom_write/eeprom_write.pde (limited to 'libraries/EEPROM/examples/eeprom_write/eeprom_write.pde') diff --git a/libraries/EEPROM/examples/eeprom_write/eeprom_write.pde b/libraries/EEPROM/examples/eeprom_write/eeprom_write.pde new file mode 100644 index 0000000..ae7c57e --- /dev/null +++ b/libraries/EEPROM/examples/eeprom_write/eeprom_write.pde @@ -0,0 +1,38 @@ +/* + * EEPROM Write + * + * Stores values read from analog input 0 into the EEPROM. + * These values will stay in the EEPROM when the board is + * turned off and may be retrieved later by another sketch. + */ + +#include + +// the current address in the EEPROM (i.e. which byte +// we're going to write to next) +int addr = 0; + +void setup() +{ +} + +void loop() +{ + // need to divide by 4 because analog inputs range from + // 0 to 1023 and each byte of the EEPROM can only hold a + // value from 0 to 255. + int val = analogRead(0) / 4; + + // write the value to the appropriate byte of the EEPROM. + // these values will remain there when the board is + // turned off. + EEPROM.write(addr, val); + + // advance to the next address. there are 512 bytes in + // the EEPROM, so go back to 0 when we hit 512. + addr = addr + 1; + if (addr == 512) + addr = 0; + + delay(100); +} -- cgit v1.2.3-18-g5258