Grove - DS1307 RTC (Real Time Clock)

The Grove - DS1307 RTC is based on the DS1307 clock chip and supports I2C communication! The RTC uses a Lithium cell battery (CR1225). We choose to use the RTC based on DS1307 as it is low cost and also very energy efficient. It can run for years on a very small coin cell!

The clock/calendar provides seconds, minutes, hours, day, date, month and year information. The end of the month date is automatically adjusted for months with fewer than 31 days, including corrections for leap year. The clock operates in either the 24-hour or 12-hour format with AM/PM indicator.

Note: Battery NOT included

Features

• Real-Time Clock (RTC) counts seconds, minutes, hours, date of the month, month, day of the week, and year with Leap-Year compensation valid up to 2100
• 56-Byte, Battery-Backed, Nonvolatile (NV)RAM for data storage
• I2C serial interface
• 5V DC supply
• Programmable Square-Wave output signal
• Automatic Power-Fail detect and switch circuitry
• Consumes less than 500nA in Battery-Backup Mode with Oscillator Running
• Product number: Seeed 101020013

Resources

• Product Wiki

Package Contents

• 1x Grove - RTC Module
• 1x Grove cable