Dorhea DS3231 AT24C32 IIC RTC Module Clock Timer Memory Module Beats Replace DS1307 I2C RTC Board Compatible with Ardu ino (Batteries not Included) + 20 PCS Male to Female Jumper Wire Cable

DS3231 AT24C32 IIC RTC Module Clock Timer Memory Module Beats Replace DS1307 I2C RTC Board (Batteries not Included) + 20 PCS Male to Female Jumper Wire Cable

ELEGOO 120pcs Multicolored Dupont Wire 40pin Male to Female, 40pin Male to Male, 40pin Female to Female Breadboard Jumper Ribbon Cables Kit Compatible with Arduino Projects

Arduino Uno REV3 [A000066]