![]() Two pull-up resistors of 10K are needed for the SCL and SDA lines, if these two resistors are not connected to whole circuit will not work at all and the LCD may not display any thing. The SCL and SDA pins of the DS3231 are connected to SCL (RC3) and SDA (RC4) pins of the PIC16F887 microcontroller. Interfacing DS3231 with PIC16F887 microcontroller circuit:Īs we can see in the circuit there is a 16x2 LCD to display time and date, this LCD is connected to PORTD. ![]()
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