2x Tiny RTC I2C Module - Real-Time Clock for Arduino

Selling two Tiny RTC I2C modules based on the DS1307 real-time clock chip This module includes a holder for a rechargeable lithium battery, or alternatively for a CR2032 battery (by removing some components, as described in the schematic), enabling the module to continue timekeeping even when the connected microcontroller (Arduino or other) is powered off. Shipping cost via standard mail: 1.50€ Total price for both modules + shipping via standard mail: 2.30€