Adafruit DS3231 Precision RTC Breakout Board 3.3V 5V STEMMA QT Qwiic

Adafruit DS3231 Precision RTC Breakout Board 3.3V 5V STEMMA QT Qwiic

18,95 € (Net 15,92 € )

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Goods ordered. 5 pcs expected on 30.04.2024.
Delivery time: 12 - 14 Workdays (DE - int. shipments may differ)

SKU: AF5188
GTIN: 4060137071768
Category: RTC
Manufacturers: Adafruit
MPN: 5188
Storage Tiers: Tier3

Description
Reviews

This Real Time Clock (RTC) is the most precise you can get in a small, low-power package. Now it comes with STEMMA QT connectors for plug-and-play simplicity.

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 coin cell plugged into the back, you can get years of precision timekeeping, even when main power is lost. A CR1220 coin cell is required to use the battery-backup capabilities!

We've taken the sensor and put it onto a breakout PCB along with support circuitry to let you use it with 3.3V (Feather/Raspberry Pi) or 5V (Arduino/ Metro328) logic levels. Additionally, since it speaks I2C you can easily connect it up with two wires (plus power and ground!). We've even included SparkFun qwiic compatible STEMMA QT connectors for the I2C bus so you don't even need to solder! Just wire up to your favorite micro and you can use our CircuitPython/Python or Arduino drivers to easily interface with the DS3231.

Comes as a fully assembled and tested breakout plus a small piece of header. You can solder header in to plug it into a breadboard, or solder wires directly.

QT Cable and coin cell are not included