How to interface DS3231 RTC to Attiny85/2313?

Thread Starter

Gab Cruz

Joined Nov 16, 2015
28
I would like to use the DS3231 rtc module as timer and the attiny as the microcontroller. Do I need to add additional components such as resistors, capacitors and crystal?
 

ericgibbs

Joined Jan 29, 2010
19,078
hi GC,
The DS3231 module has its own crystal and 3v back up battery on its PCB.
You need two 2k2 pull up resistors to Vcc, one for the SDA and one for the SCL lines.

E
 
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