Setting project RTC without switches

[ardhuru]

I ordered these for ease of use http://dx.com/p/jy-mcu-arduino-bluet...-104299?item=5 , but you could use these if you are willing to base your system on 3.3 volts, or add your own LDO. http://dx.com/p/wireless-bluetooth-r...-80711?item=10

I would recommend the one mounted on a backpane, as it also comes with a status LED pre-soldered, and a standard 0.1" pitch connector.

Functionally they are the same.