Real-time module equipped with an emergency battery power supply. It allows you to read the date: month, day, year and time: hours, minutes and seconds. The communication interface here is the SPI bus. Specification: Supply voltage: from 2.0 V to 5.5 V Current consumption: less than 1 mA Battery socket: CR 1220 Driver: DS1302 Data reading: Time: hour (AM, PM), minute, second Date: month, day, year Emergency battery power supply Calendar until 2100 Tile sizes: 23 x 35 mm The set does not include a battery https://elecena.pl/product/22620682/precise-real-time-ds1302-clock-module 2023-02-22 https://elecena.pl/product/22620682/precise-real-time-ds1302-clock-module 2025-10-29