The XC9044 is a tiny RTC module which uses I2C to communicate with the Raspberry Pi. Once set up, it can be used to provide a battery backed clock source, and is ideal for situations where the Pi may be powered off and on or out of range of Wi-Fi where it cannot get a reliable time fix.
Features:
Five Pin header that plugs straight onto the Pi's GPIO pins
I2C interface
Based on highly accurate DS3231 IC
Backup Battery : CR927
Length:14.0 mm
Width:14.0 mm
RTC Clock Module for Raspberry Pi
(1)
$19.95
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Super easy and reliable time
Keeps the Pi on time from boot without a network connection (my Pi camera project was out in the bush). Super easy to connect and configure. So good I went back and bought another.
Yes, I recommend this product.
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