{"product_id":"ds3231-precision-rtc-featherwing-rtc-add-on-for-feather-boards","title":"DS3231 Precision RTC FeatherWing - RTC Add-on For Feather Boards","description":"\u003cp\u003e\u003cstrong\u003eThe DS3231 Precision RTC FeatherWing adds highly accurate, temperature-compensated timekeeping with battery backup to any Feather board—ideal for datalogging, clocks, and projects that need reliable timekeeping.\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003eA Feather board without ambition is a Feather board without FeatherWings! This is the Adafruit \u003cstrong\u003eDS3231 Precision RTC FeatherWing\u003c\/strong\u003e: it adds an extremely accurate I2C-\u003cstrong\u003eintegrated Real Time Clock (RTC) with a Temperature Compensated Crystal Oscillator\u003c\/strong\u003e (TCXO)  to any Feather main board. This RTC is the most precise you can get in a small, low power package. Using our Feather Stacking Headers or Feather Female Headers you can connect a FeatherWing on top of your Feather board and let the board take flight!\u003c\/p\u003e\n\u003cp\u003eCheck out our range of Feather boards here.\u003c\/p\u003e\n\u003cp\u003eMost RTCs use an external \u003cstrong\u003e32kHz timing crystal\u003c\/strong\u003e that is used to keep time with low current draw. And that's all well and good, but those crystals have slight drift, particularly when the temperature changes (the temperature changes the oscillation frequency very very very slightly but it does add up!) This RTC is in a beefy package because the \u003cstrong\u003ecrystal is inside the chip\u003c\/strong\u003e! And right next to the integrated crystal is a \u003cstrong\u003etemperature sensor\u003c\/strong\u003e. That sensor compensates for the frequency changes by adding or removing clock ticks so that the timekeeping stays on schedule.\u003c\/p\u003e\n\u003cp\u003eWith a CR1220 12mm coin cell plugged into the top of the FeatherWing, you can get years of precision timekeeping, even when main power is lost. Great for datalogging and clocks, or anything where you need to really know the time.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA CR1220 coin cell is required\u003c\/strong\u003e to use the battery-backup capabilities! We don't include one by default, to make shipping easier for those abroad, but we do stock them so pick one up or use any CR1220 you have handy.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlease note that the coin cell battery and breadboard are not included. \u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003e\n\u003cstrong\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/VixZ1GFgksg?si=ij3K3wfgkUDtLMDd\u0026amp;start=613\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/strong\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDS3231 Precision Real Time Clock (RTC) with I2C interface\u003c\/li\u003e\n\u003cli\u003eTemperature Compensated Crystal Oscillator (TCXO) integrated into chip\u003c\/li\u003e\n\u003cli\u003eAccurate timekeeping with automatic temperature compensation\u003c\/li\u003e\n\u003cli\u003eLow power consumption\u003c\/li\u003e\n\u003cli\u003eCR1220 coin cell battery backup for years of operation without main power\u003c\/li\u003e\n\u003cli\u003eCompatible with all Feather boards using Feather Stacking or Female Headers\u003c\/li\u003e\n\u003cli\u003eIdeal for datalogging, clocks, and time-sensitive applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eProduct Dimensions: 50.8mm x 22.9mm x 1.6mm\u003c\/li\u003e\n\u003cli\u003eWeight: 4.8g\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eRevision History\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAs of January 17, 2023\u003c\/strong\u003e – we've updated this PCB with Adafruit Pinguin to make a lovely and legible silkscreen - you may get the new PCB or the older version with vector fonts - both are identical other than the fancy silkscreen.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eResources\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDatasheet\u003c\/li\u003e\n\u003cli\u003eProduct Learn\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003ePackage Contents\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e1x DS3231 Precision RTC FeatherWing - RTC Add-on For Feather Boards\u003c\/li\u003e\n\u003cli\u003e2x Header Strips\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003ePlease note that the coin cell battery and breadboard are not included.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Adafruit","offers":[{"title":"Default Title","offer_id":53697491796244,"sku":"kud1787257347712","price":9.11,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0946\/9486\/7220\/files\/ds3231-precision-rtc-featherwing---rtc-add-on-for-feather-boards_1.jpg?v=1787257352","url":"https:\/\/regalwearstore.shop\/products\/ds3231-precision-rtc-featherwing-rtc-add-on-for-feather-boards","provider":"My Store","version":"1.0","type":"link"}