Pi RTC (DS1307)

The Seeed Pi RTC is based on the DS1307 clock chip and can provide a real-time clock (RTC) for your Raspberry Pi via the I2C interface. The real-time clock of this module counts seconds, minutes, hours, date of the month, month, day of the week and year, with leap-year compensation valid up to 2100. The clock operates in either the 24-hour or 12-hour format with AM/PM indicator. If you want to keep this module timing when the Raspberry Pi is powered off, you need to put a 3-Volt CR1225 lithium cell in the battery holder. Features

* Supports all models of Raspberry Pi Model B or A

* Supports seconds, minutes, hours, day of week, month, year

* Supports 24-hour or 12-hour format with AM/PM indicator

* 56-byte, battery-backed, nonvolatile (NV) RAM for data storage

* Programmable squarewave output signal

* Automatic power-fail detect and switch circuitry

* Product number: Seeed 103030277

Pinout

Specifications

Dimensions 30mm x23mm x15mm

Weight 13.2g

Battery CR1225 (not included)

Package Contents

* 1x Pi RTC (DS1307)

* 1x 2-pin header

Battery NOT included Resources

* Product Wiki

* Seeed Pi RTC Library

* DS1307 Datasheet

* Eagle Files