[mikeyk]

Cheers,
Maybe I'll buy both.

Derek;
The RTC you mentioned and the first RTC I mentioned has 6 pins, yet the RX board appears to have 5 pins for the RTC. What happens there, do you just use 5 of the 6 pins?

Thanks,
Michael

[Derek]

Hello Michael.

I did not use the six pins.
I soldered leads to the other end that has 4 pads.
SCL SDA VCC GND

Then connected:
SCL to SCL
SDA to SDA
VCC to 5V on the I2C/LCD pin ( could be any other 5V pin thats free )
GND to GND

Regards Derek

[werk_ag]

Hi Michael

As said by Zdenek, the right RTC module to use with the Pro2 PLUS board is the second one.

Precision DS3231 Real Time Clock Module RTC DS3231 3.3V/5V with Battery for Raspberry Pi

It fits directly on the 5 pins on the board. The less cables around the better.