Using a $2 DS3231 RTC & AT24C32 EEprom from eBay
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Using a $2 DS3231 RTC & AT24C32 EEprom from eBay

Edward Mallon @ edwardmallon.wordpress.com gives us a detailed explanation about cheap RTC modules found on ebay and other places. I built the first few beta units with the DS3231 Chronodot from Macetech (about $18 each), but I kept on stumbling across cheap RTC modules on eBay,...

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