davedarkoI'm still not satisfied with the running off RTC called DS1307 and some research gave me the DS3231, which is a temperature corrected, very accurate clock module. It seems interchangeable with the DS1307 without so much hassle, so I bought some modules for 1,10 EUROs on ebay. It can't be right when the chip itself costs 3,50 on digikey, but all the modules were the same, the only difference was the price tag, so I took the cheapest. I'm tempted to measure the 1kHz square wave of the DS1307 though. Work on a photogenic case is still something I have to do, I need that 100th skull!
new time module - DS3231
A project log for Fixietube - Fake Nixie Tube displays
30ml jam jars turned into beautiful LED displays - nixietube like looking without the higher voltage fuzz
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+1 on the DS3231. We (wyolum.com) always use it for all of our RTC needs. Seems you found a really cheap source. Let us know if the chips are good.
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It's weird that it's actually cheaper than the cheapest DS1307 module (1.11 EUR) on ebay I could find, but the next price was around 1.40EUR, so I hope they just want to get rid of them or something. I will definitely write something about the accuracy.
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yup. that 1307 will run away. glad you found the temperature corrected version.
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I was in the hope to fix it somehow by changing the quartz or do something else. At least it's not a pricey swap.
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