storing 3 it's into permanent memory

Using Arduino Programming Questions
#1

I have an led project where I need to set brightness values (pwm) of 3 leds....I'd like the device to remember my last settings every time I turn it on....
is this possible with arduino?

Where wold I go for an example sketch?

It's 3 integer values only that need to be stored

Thanks

#2

Look into using the EEPROM

#3

Have a look at EEPROM.

#4

I need to set brightness values (pwm) of 3 leds....It's 3 integer values only that need to be stored

No, it's three byte values. There is no reason to use an int to store a value between 0 and 255, when a byte will work, and is MUCH easier to save and retrieve from EEPROM.

#5

PaulS:
No, it's three byte values. There is no reason to use an int to store a value between 0 and 255, when a byte will work, and is MUCH easier to save and retrieve from EEPROM.

Paul, he said integer not int. An int is a 16 bit data type on Arduino. An integer is a whole number with no fractional part. Anything you might store in a byte type variable would certainly qualify as an integer.

#6

Thanks!
I had never tried this before…thought it be way more difficult than this!

#7