DS1307 RTC Module with Battery compatible with Raspberry Pi 4B

The DS1307 RTC Module provides dedicated hardware timekeeping for Raspberry Pi setups that operate offline or without continuous power. It is an ideal addition for students, makers, and hobbyists building standalone logging, automation, or data-collection projects. Equipped with an onboard CR1220 backup battery, it maintains the accurate date and time seamlessly via I2C.

Persistent real-time tracking

The integrated DS1307 real-time clock IC maintains accurate timekeeping independently of the host processor. This enables precise system time management for offline logging and scheduled tasks.

CR1220 battery backup

The module includes a CR1220 coin cell battery to power the internal clock circuitry continuously. Timekeeping data remains intact even when the Raspberry Pi is completely disconnected from power.

Simple I2C communication

The module interfaces with your board using the standard I2C protocol. This keeps pin usage minimal and ensures direct communication with the Raspberry Pi hardware bus.

Raspberry Pi hardware compatibility

Specifically matched with the Raspberry Pi 4B, the module is also compatible with other Raspberry Pi models requiring an external real-time clock. It serves as a compact, drop-in timekeeping upgrade.

Downloads & documentation

• Product wiki (DFRobot)