RTC Real Time Clock Module DS1307 for Arduino in Pakistan
The RTC is an i2c device, which means it uses 2 wires to to communicate. These two wires are used to set the time and retrieve it. pins are also wired to the Analog 4 and 5 pins. This is a bit annoying since of course we want to have up to 6 analog inputs to read data and now we’ve lost two.
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