10 Best Rtc Modules For Precise Timekeeping On Arduino And Raspberry Pi

10 Best rtc modules for precise timekeeping on arduino and raspberry pi - December 2025

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Last Updated: 09-12-2025

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AZDelivery 5 x DS3231 RTC Real Time Clock I2C compatible with Arduino and Raspberry Pi including E-Book!

AZDelivery

9.8

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Hilitand DS3231 Clock Module for Arduino Raspberry Pi RTC Board Real Time Clock Module for Arduino Raspberry Pi

Hilitand

9.6

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2pcs DS3231 High Precision RTC Real Time Clock Module 3.3V/5V for Arduino Raspberry Pi

AITRIP

9.5

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Best value

7% Off

JYUDAUFU 4 Pcs DS3231 Real Time Clock RTC Module Clock Timer with Battery Memory Module 3.3V/5V Repartment for Raspberry Pi for Arduino Board, for DIY, Test, with 20-Pin Jumper Wire

JYUDAUFU

9.2

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DollaTek 5PCS DS3231 Precision RTC Clock Module Memory Module for Arduino for Raspberry Pi

DollaTek

9.1

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Fasizi 5PCS DS3231 Precision RTC Clock Module Memory Module for Arduino for Raspberry Pi

Fasizi

8.8

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AZDelivery DS3231 RTC Real Time Clock I2C compatible with Arduino and Raspberry Pi including E-Book!

AZDelivery

8.6

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I2C Interface DS3231 RTC Module with CR1220 Battery, ±2ppm High-Precision Clock - Real Time Calendar for Arduino/Raspberry Pi

Generic

8.4

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ANGEEK RTC Clock Module Interfacing 3231 High precision memory module compatible with Arduino Raspberry Pi

ANGEEK

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Hobby Components DS3231 RTC MODULE FOR RASPBERRY PI

Hobby Components

8.1

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AZDelivery 5 x DS3231 RTC Real Time Clock I2C compatible with Arduino and Raspberry Pi including E-Book!

Hilitand DS3231 Clock Module for Arduino Raspberry Pi RTC Board Real Time Clock Module for Arduino Raspberry Pi

2pcs DS3231 High Precision RTC Real Time Clock Module 3.3V/5V for Arduino Raspberry Pi

JYUDAUFU 4 Pcs DS3231 Real Time Clock RTC Module Clock Timer with Battery Memory Module 3.3V/5V Repartment for Raspberry Pi for Arduino Board, for DIY, Test, with 20-Pin Jumper Wire

DollaTek 5PCS DS3231 Precision RTC Clock Module Memory Module for Arduino for Raspberry Pi

Fasizi 5PCS DS3231 Precision RTC Clock Module Memory Module for Arduino for Raspberry Pi

AZDelivery DS3231 RTC Real Time Clock I2C compatible with Arduino and Raspberry Pi including E-Book!

I2C Interface DS3231 RTC Module with CR1220 Battery, ±2ppm High-Precision Clock - Real Time Calendar for Arduino/Raspberry Pi

ANGEEK RTC Clock Module Interfacing 3231 High precision memory module compatible with Arduino Raspberry Pi

Hobby Components DS3231 RTC MODULE FOR RASPBERRY PI

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