Should I try to change the crystals to see how that goes? Or just scrap them?
Well I was planning to go search them at the local electronics shops after you guys tell me what crystal should i get, cause on the one that's now on the board I can't see any markings, and my module didn't come with a datasheet. I guess all crystals for the ds1302 should be the same, right?
my module didn't come with a datasheet.
I got my cheap ds3231, this one is loosing 1-2 seconds a day. I remember you guys telling me this one can be calibrated by code. Where should I research that. Any pointers?
Could i use regular battery in my breakboard, which is made to use a rechargable coin cell? That is what i am asking, how to go about not using a rechargable coin cell battery.Multimeter on battery pins on the board gives me 4.75V, so i guess i can't.Or, could i use a 3.7 v li-ion 1090 mAh battery pack?