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SparkFun DeadOn RTC Breakout - DS3234

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Here is a real time clock based on the DS3234 Real Time Clock IC. The DS3234 is a low-cost, extremely accurate SPI bus real-time clock with an integrated tem...

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Here is a real time clock based on the DS3234 Real Time Clock IC. The DS3234 is a low-cost, extremely accurate SPI bus real-time clock with an integrated temperature-compensated crystal oscillator and crystal.
 The RTC maintains seconds, minutes, hours, day, date, month, and year information. The date at the end of the month is automatically adjusted for months with fewer than 31 days, including corrections of leap year. The clock operates in either the 24-hour or 12-hour format with AM/PM indicator. Two programmable time-of-day alarms and a programmable square-wave output are provided.
 The underside of the board holds a 12mm coin-cell battery holder for battery backup.
Note: These do not include a battery. See the related products below for a battery.
Features:
  • +-2ppm accuracy
  • Two alarms
  • SPI output
  • Low power consumption
  • Accurate calendar up to year 2100
Documents:

Jargon buster

Plain-language definitions for the technical terms used above.

RTC
A Real-Time Clock keeps track of time even when the main processor is asleep or powered down, usually with a small backup battery. It matters for data logging and tracking projects that need accurate timestamps.
SPI
A fast serial communication bus often used for displays, memory cards, and sensors. It matters because SPI devices need specific pins for clock and data, plus a separate chip-select line for each device.

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All Products Arduino Sensors Breakouts ICs and Microchips New Arrivals SparkFun

Sensors & Input

Sensors Sensors & Modules

DeadOn RTC Breakout DS3234 Schematic

Schematic · 276.3 KB · Click any page to view full size

Download PDF

DS3234 Datasheet

Datasheet · 276.3 KB · Click any page to view full size

Download PDF

Supplier page — sparkfun.com

Supplier Description · 591.3 KB · Click any page to view full size

Download PDF

Resources & Downloads

Guides, code examples, and more

DS3234 Example Sketch

Example Code · PDE · 2.3 KB

Arduino example code demonstrating use of the DS3234 RTC

DeadOn RTC Breakout Eagle Files

Schematic · ZIP · 276.3 KB

Eagle design files for the DeadOn RTC Breakout - DS3234 PCB

master

Example Code · ZIP · 20.7 KB

Source Code

Open-source libraries, firmware & example projects for this product

sparkfun/DeadOn_RTC
7 6

Example code and board files for the DeadOn_RTC

C++ sparkfun.com/products/10160
Update README.md c5d6d0e about 1 year ago
View repository on GitHub
sparkfun/SparkFun_DS3234_RTC_Arduino_Library
4 12

Implements all time-keeping, setting, and alarming functions of the DS3234 RTC module.

C++ Other
arduino-library rtc sparkfun
Update compile-sketch.yml 8edf149 over 4 years ago
View repository on GitHub

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