The most popular RTC for the Arduino is the DS1307. However, it does have some drawbacks, the most notable of which is that its operating voltage is 5v, which means it cannot be used with 3.3v ...

Here is the circuit diagram of a compact RTC module, based on the popular RTC IC DS1307, for your everyday microcontroller projects. The DS1307 serial real-time clock (RTC) is a lowpower, full ...

Posted in Arduino Hacks, clock hacks, home hacks, Microcontrollers Tagged astronomic, automation, garden, relay, rtc ← Recreate A PCB With A Scanner And Inkscape Unbricking A Router With A Raspi → ...