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![DS3231 Mini RTC Module for Raspberry Pi & Arduino [DS3231] - US $2.50 : HAOYU Electronics : Make Engineers Job Easier](http://www.haoyuelectronics.com/Attachment/DS3231/mini%20rtc.jpg "DS3231 Mini RTC Module for Raspberry Pi & Arduino [DS3231] - US $2.50 : HAOYU Electronics : Make Engineers Job Easier")
DS3231 Mini RTC Module for Raspberry Pi & Arduino [DS3231] - US $2.50 : HAOYU Electronics : Make Engineers Job Easier
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Adafruit PiRTC - Precise DS3231 Real Time Clock for Raspberry Pi : ID 4282 : $14.95 : Adafruit Industries, Unique & fun DIY electronics and kits
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Interfacing DS3231 Real Time Clock RTC Module with Arduino
Amazon.com: Hilitand DS3231 Clock Module for Arduino Raspberry Pi RTC Board Real Time Clock Module for Arduino Raspberry Pi : Electronics
DS3231 Real Time Clock Module RTC 3.3V/5V Raspberry Pi for arduino - AliExpress
DS3231 RTC module for Raspberry Pi (HCRASP0009) - forum.hobbycomponents.com
Arduino Usage | Adafruit DS3231 Precision RTC Breakout | Adafruit Learning System
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