Problems Waking from Hibernate

koz · **Joined:** Fri Jun 01, 2012 8:18 pm **Posts:** 14

Hi,
Simple hibernate codes work fine, but not always with the sensors incorporated. Can you give me another example of how you would store and call multiple alarm times using the eeprom? I looked at your example and am still confused.
Thanks.

libelium-dev · **Joined:** Mon Sep 28, 2009 1:06 pm **Posts:** 7456

Koz,

We were referring a code like this:

Code:

uint8_t sleepMode;
setup()

loop(){

doYourStuff();

sleepmode = readFromEEPROM();

if (sleepmode==1) sleeptime=4 hours
if (sleepmode==2) sleeptime=24 hours

saveSleepMode() // save in EEPROM for next time

hibernate(sleepTime);

}

Take a look into Wasputils.EEPROM examples to know how to read / Write from EEPROM.

Previous code is only a suggestion, there are several ways (maybe you find another better) to do it.

Best Regards.

koz · **Joined:** Fri Jun 01, 2012 8:18 pm **Posts:** 14

Hi,
I ran the example code, but now the board does not work properly. I looked through your example code after running it a couple of times then modifying it, and it writes to values 0-512 in the EEPROM. I read in the manual that you should not write in EEPROM for anything less than 300. Now I am afraid that my board is no longer configured properly

Please advise.

Thanks.

libelium-dev · **Joined:** Mon Sep 28, 2009 1:06 pm **Posts:** 7456

Koz,

what do you mean with "but now the board does not work properly"?

It is recommended to write EEPROM above address 300 due to from 0 to 300 there are some specific data, but I is not always used so you can stay calm.

Let us know regards.

koz · **Joined:** Fri Jun 01, 2012 8:18 pm **Posts:** 14

Usually, when I turn the board on after uploading new code, the rightmost red light will always blink at least once so I know to remove hibernate jumper. Now, it is flighty and does not always blink, usually I have to upload the code again and keep testing until it works..

libelium-dev · **Joined:** Mon Sep 28, 2009 1:06 pm **Posts:** 7456

Koz,

Do not worry about it.

You can blink the led and introduce a delay before hibernate sentence to know when to remove hibernate jumper. Just like that:

blinkLed();
delay(2000); // 2 seconds
hibernate();

Regards