I am aware that some of the code mentioned here is not maintained by Arduino, but I feel it important to highlight the restrictions in both hardware and software that must be taken into account if a ...

RTCの初期化．引数で false を与えると，時刻設定等を行わなず，インターフェイスの最小限の初期化のみを行うので，RTCに時刻設定を行った後にArduinoを再起動した場合に便利です． 第2引数は，RTCデフォルトのI2Cアドレスを用いない場合に指定してください． ...

Teyleten Robot DS3231SN DS3231 Real Time Clock Module RTC Clock AT24C32 Without Battery for Arduino Raspberry (5PCS) , HiLetgo 5pcs DS3231 High Precision RTC Real Time Clock Module 5V for Arduino ...

A highly accurate clock made using Arduino, which displays even Temperatures. The clock blinks the colon as well while displaying the time. Even after a power cut the clock displays the current time ...