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Adafruit

Adafruit PCF8523 Real Time Clock Breakout Board, STEMMA QT / Qwiic, 5189

Adafruit PCF8523 Real Time Clock Breakout Board, STEMMA QT / Qwiic, 5189

Regular price €8,99 EUR
Regular price Sale price €8,99 EUR
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This is a great battery-backed real time clock (RTC) that allows your microcontroller project to keep track of time even if it is reprogrammed, or if the power is lost. Perfect for datalogging, clock-building, time stamping, timers and alarms, etc. Equipped with PCF8523 RTC - it can run from 3.3V or 5V power & logic! Now it comes with STEMMA QT connectors for plug-and-play simplicity.

Works great with an Arduino using our RTC library, with CircuitPython or with a Raspberry Pi (or similar single board linux computer)

  • PCB & header are included
  • Plugs into any breadboard, or you can use wires
  • Two mounting holes
  • Will keep time for 5 years or more

Note: This product does not come with a CR1220 coin cell battery.

The PCF8523 is simple and inexpensive but not a high precision device. It may lose or gain up to 2 seconds a day. For a high-precision, temperature compensated alternative, please check out the DS3231 precision RTC. If you need a DS1307 for compatibility reasons, check out our DS1307 RTC breakout.

Check out our detailed guide for code, libraries, schematics, Fritzing object and more!

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