Adafruit DS3231 RTC Breakout
Best precision timekeeping module for electronics hobbyists and DIY project builders.
This is the gold standard for keeping time in embedded projects. By integrating the crystal and a temperature sensor directly into the chip, it eliminates the drift common in cheaper modules, ensuring your clocks and data loggers stay perfectly synced regardless of environmental changes.
$22.55
at
Jameco Electronics
Who it's for
- Makers building time-sensitive projects requiring long-term precision
- Engineers needing reliable performance across varying environmental temperatures
- Developers creating devices that must retain time during power outages
Who should skip it
- Budget-conscious hobbyists working on simple, low-cost projects
- Designers integrating multiple I2C devices on a single bus
- Engineers building ultra-low-power devices for multi-year battery operation
Performance breakdown
Timekeeping Precision
Temperature-compensated crystal oscillator ensures minimal drift over long periods.
Integration Ease
Breadboard-friendly design makes prototyping and wiring incredibly straightforward.
Voltage Compatibility
Wide operating range supports both 3.3V and 5V logic systems.
Form Factor
Tiny footprint fits easily into space-constrained electronics projects.
Documentation Quality
Extensive design files and guides make implementation virtually foolproof.
Reliability
Battery backup ensures continuous timekeeping even during main power failures.
Key Specs
Manufacturer
Adafruit
Part Number
3013
Interface
I2C
Battery Type
CR1220
Operating Voltage
2.3V - 5.5V
Form Factor
Breakout Board
Accuracy
+/- 2 minutes per year
Operating Temperature
-40 to 85°C
Dimensions
23 mm x 17.6 mm x 7.2 mm
Compliance
RoHS, REACH
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