DS3231 OLED clock with 2-button menu setting and temperature display
This is an OLED 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 for setting the RTC (no serial port or USB required)
Two versions are shown - the basic digital/analog clock and a version with "Pusheen" graphics and animation.
It uses the Adafruit graphics libraries and DS3231 library, included in the distribution.
Instructable at http://www.instructables.com/id/DS323...