eBay - RTC (Real Time Clock) Module DS1307 for Arduino
$0.99
in stock
Item condition: New
Ended: Sep 14, 08:32 PST
eBay.com
as of January 19, 2021 8:56 pm
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The Real Time Clock (RTC) module can be used to retain the time, even when the Arduino is powered off. These modules use I2C communication.
Learn how to use the Real Time Clock (RTC) module with the Arduino: