real time logger?

[mackrackit]

Yep, it is possible, The reason I pointed out the above links
If I remember correctly all three of the examples have a way to start and stop. They are basically running off an interrupt. Enable/ Disable ?

Write value to EEPROM at the same place the LCD is updated.

One of the pitfalls, maybe, you only have a certain amount of time between clock updates to work on something else. (look at Paul's example) Could maybe split routines up...Odd seconds do this...Even seconds do that...?

All kinds of possibilities.

[karenhornby]

I'm starting to like this idea
SO for IF I wanted to use this (Clicky) example
DO you reckon I could use that, but still have enough time to poll 4 1 wire devices and keep the clock running? All I need to do with the timer really is make it read from the eeprom on startup display the hours minutes and seconds on the lcd display, start counting then get on with the rest of the program with the timer counting in the background.
All I'd need to do with the timer is write to the eeprom anywhere upto every 10 seconds or so, that way if the program loses power at any time, then the current timer data will be in the eeprom, when it is powered up next it reads from the eeprom and carries on counting from where it left off
Hopefully that made sense as I'm pretty hopeless at expressing how I see things in my mind even though they make sense to me lol

[mackrackit]

As I mentioned before, I do not use one wire stuff so I do not know how long it takes. But I would think a 10 second resolution on the timer will buy you enough time.