Tutorial – Using DS1307 and DS3231 Real-time Clock Modules with Arduino

We keep getting requests on how to use DS1307 and DS3231 real-time clock modules with Arduino from various sources – so this is the first of a two part tutorial on how to use them. For this Arduino tutorial we have  two real-time clock modules to use, one based on the Maxim DS1307: and another based on the DS3231: There are two main differences between the ICs on the real-time clock modules, which is the ac ...

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DS3231 OLED alarm clock with 2-button menu setting and temperature display

UPDATE: V1.1 of clock packages uploaded for compatibility with latest IDEs. Video at:: http://youtu.be/ikNw1iLE9vg Alarm demo video: http://youtu.be/jlZBCuQeswA This is an OLED alarm clock I built using an Arduino Micro, a tiny OLED 128x64 display using the SSD1306 controller and I2C interface, and a precision DS3231-based real-time clock module with rechargeable battery backup. It features a menu system fo ...

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