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DS3231 Precision RTC FeatherWing - RTC Add-on For Feather Boards

SKU: ADA3028

$20.40 AUD, inc GST
$18.55 AUD, exc GST

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DS3231 Precision RTC FeatherWing - RTC Add-on For Feather Boards
20.4 AUD

SKU: ADA3028

$20.40 AUD, inc GST
$18.55 AUD, exc GST
In stock, ships today if ordered before 2PM
Delivered by Mon, 18th of Dec

A Feather board without ambition is a Feather board without FeatherWings! This is the DS3231 Precision RTC FeatherWing: it adds an extremely accurate I2C-integrated Real Time Clock (RTC) with a Temperature Compensated Crystal Oscillator (TCXO)  to any Feather main board. This RTC is the most precise you can get in a small, low power package. Using Adafruit's Feather Stacking Headers or Feather Female Headers you can connect a FeatherWing on top of your Feather board and let the board take flight!

Check out Adafruit's range of Feather boards here.

Most RTCs use an external 32kHz timing crystal 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 crystal is inside the chip! And right next to the integrated crystal is a temperature sensor. That sensor compensates for the frequency changes by adding or removing clock ticks so that the timekeeping stays on schedule.

With 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.

A CR1220 coin cell is required to use the battery-backup capabilities! Adafruit 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.

Adafruit's tutorial for the DS3231 breakout has all the library and example code you need to get started, works with any and all of Adafruit's Feathers via the Arduino IDE

Check out Adafruit's range of Feather boards here.

Technical Details

This product is listed in:

Documentation and Resources:
  • The Maker Revolution
  • The Maker Revolution celebrates the creation of new devices and the modification of existing ones - the transition from a consumer buying goods to eventually having a major part in their creation. The Maker Revolution places strong emphasis on free (...
  • Hello World with the OLED FeatherWing
  • The OLED Featherwing by Adafruit is a particularly interesting Wing; it gives you a 128x32 monochrome OLED display right on top of your feather board. There's also three buttons to use that are internally connected to your MCU and accessible via the ...
  • Wi-Fly with Feather Boards
  • I’ll level with you; the idea of microcontrollers and wireless networks was a little daunting to me initially. How on earth was I going to connect and control it with Wi-Fi?! But when I eventually I waded into the world of networking microcontr...
  • Wings of the Feather
  • The Feather boards are the brains of your project, we took a closer look at the different models in our Birds of Feather article, check that out first (especially if you have no idea what the difference is between a feather and a wing). You can plug ...
  • Boards of a Feather
  • Have you ever used an Arduino board, and wanted to hook it straight up to a JST connected LiPo battery but knew it wouldn’t work? Or maybe you wanted a microcontroller with built-in wireless capabilities? Well, Adafruit has developed their fam...

Product Comments

We deliver Australia-wide with these options:

  • $3 for Small Items (4-6 days, not tracked, only available on selected small items)
  • $6.95 for Standard Post (2-4 days, tracked)
  • $8.95 for Express Post (1-2 days, tracked)
  • Pickup - Free! Only available to customers who live in the Newcastle region (only after we email you to notify your order is ready)

International Orders - the following rates are for New Zealand and will vary for other countries:

  • $11.49 for Pack and Track (3+ days, tracked)
  • $16.50 for Express International (2-5 days, tracked)

If you order lots of gear, the postage amount might increment based on the weight of your order.

Our physical address:

Unit 18, 132 Garden Grove Parade
Adamstown
NSW, 2289
Australia

Please checkout our customer service page if you have other frequently asked questions such as "do we do purchase orders" (yes!) or "are prices GST inclusive" (yes they are!). We're here to help - get in touch with us to talk shop.