CED-3295
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$4.95This 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!
Works great with an Arduino using our RTC library or with a Raspberry Pi (or similar single board linux computer)
Note: This product does not come with a CR1220 coin cell battery. We recommend you purchase a coin cell battery to use with this product.
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!
Revision History:
Product Dimensions: 25.5mm x 21.7mm x 4.8mm / 1.0" x 0.9" x 0.2"
Product Weight: 1.2g / 0.0oz
Collections: Adafruit
Type: Breakout Boards > Clocks