Better alternative to DS1307

Discussion in 'General Electronics Chat' started by stoopkid, Mar 8, 2012.

  1. stoopkid

    Thread Starter Active Member

    Mar 3, 2011
    I'm using a DS1307 with my arduino and the RTClib library. It works fine but I'm not particularly happy with the accuracy. It's losing at least 10 seconds a day. It may be because I'm testing it on a breadboard, but I would be happier seeing a bit less time loss than that.

    I know it's asking a lot, but I was hoping for better accuracy (nothing specific, just good for a clock) without paying more than a few dollars, and remains easy to interface with the arduino. I read that a chronodot is really good but they seem to be something like ten dollars.

    Just looking for suggestions... Thanks
  2. mcgyvr

    AAC Fanatic!

    Oct 15, 2009
    The DS3231 is very accurate with its integrated crystal.
  3. MrChips


    Oct 2, 2009
    Testing the DS1307 on a breadboard is likely to add sufficient stray capacitance to slow down the XTAL. You should be ok on a properly laid out pcb.
  4. stoopkid

    Thread Starter Active Member

    Mar 3, 2011
    The MC34063A is a bit more than I wanted to spend but I'll check it out for more specialized projects. I figured the breadboard had something to do with it. Thanks guys.