Pi RTC (DS1307)

SeeedSKU: 105357
Sale price £3.67
incl. VAT
excl. VAT
In stock

Compatible with:

Awesome Extras

ANSMANNCR1225 3V Lithium Coin Cell Battery
Sale price £1 incl. VAT excl. VAT
AntexAntex Lead Free Solder - 4m Tube
Sale price £3.75 incl. VAT excl. VAT
The Pi HutMagnetic Silicone Soldering Mat
Sale price £9.17 incl. VAT excl. VAT

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.


  • 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



Dimensions 30mm x23mm x15mm
Weight 13.2g
Battery CR1225 (not included)

Package Contents

  • 1x Pi RTC (DS1307)
  • 1x 2-pin header

Battery NOT included


Payment & Accreditations

Payment methods
Amazon American Express Maestro Mastercard PayPal Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.