Pi RTC (DS1307)

SeeedSKU: 105357
Sale price £4.40
incl. VAT
excl. VAT
Only 4 units left

Compatible with:

Awesome Extras

ANSMANNCR1225 3V Lithium Coin Cell Battery
Sale price £2 incl. VAT excl. VAT
AntexAntex Lead Free Solder - 4m Tube
Sale price £4.50 incl. VAT excl. VAT
The Pi HutMagnetic Silicone Soldering Mat
Sale price £11 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
Visa Mastercard Maestro PayPal Amazon Klarna

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