SparkFun Real Time Clock Module

Browse SparkFun Originals

Affiliate disclosure: Everything About Robotics may earn a commission from qualifying purchases through these links. SparkFun handles checkout, fulfillment and returns. Read our affiliate disclosure.

SparkFun Real Time Clock Module — manufacturer product photograph
Photographs: SparkFun Electronics. Used with supplier image permission. Included parts depend on the exact selected product or kit.

Choose a view to inspect it, or open the original photograph. Manufacturer source resolution limits zoom detail.

Track calendar date and time with this DS1307 module. The assembled board includes a CR1225 coin cell for backup operation and communicates over I2C. Example software provides a starting point for programming the clock and handling its data representation, making the module a component for an embedded project requiring time information.

Before you buy

Check host voltage, clock initialization and battery handling; backup duration depends on actual conditions.

SparkFun SKU: BOB-12708 · Category: Real-time clock boards

Check SparkFun for current price, stock, shipping and the exact included components.

Buy at SparkFun

Official product specifications and documentation

EAR summary based on supplier documentation; this is not a hands-on review. Product identity rechecked during the October 25, 2026 sprint. SparkFun Originals eligibility was verified with the supplier’s Original: Yes filter on 2026-10-25. Affiliate eligibility remains subject to SparkFun's program terms.