⏲ How to connect the real time (RTC) clock to Arduino

Daniil Zhuk
In this article we will connect two modules with real-time timers (or real-time clock, RTC) - DS3231 and DS1307 - to the Arduino. Both modules work on the I2C interface and are powered by a 2032 format battery.

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⏰ Unusual watches from ping-pong balls

Daniil Zhuk
The design, on which he stopped, uses 12 balls for each digit, after some experiments it turned out that this allowed us to get the clearest idea of the numbers.

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