Hey guys. I am using a clone version of adafruit datalogger shield. The rtc on it has been very dysfunctional lately. The clock stops working randomly. So, I tried attaching a Tiny RTC I2C module but it doesnt seem to interface. Is it because of the data logger's SDA and SCL lines already connected to the ARDUINO? What are your thoughts?
You can have multiple I2C devices on the bus as long as they have different addresses. Is the RTC chip you are adding a different model than the one that is on the shield?
Well, Both the RTC is ds1307 based. I am not able to use the rtc chip when I connect it to the SDA and SCL on the shield which already has the dysfunctional RTC
I would suspect an address conflict. Can you de-solder the DS1307 on the shield and remove it?
Do you have a good battery on the original chip? They won't work without the backup battery.