View source for Barionet RTC

== Barionet RTC ==

You can build your own ... or you can order it (special order, quantities apply).

If you want to build your own, here's how.

* get the DS1904, it is a Dallas Onewire "Button", a realtime clock device with integrated battery
* either connect it outside to the Barionet (standard onewire connection to J5, see the comments in the manual !
* or add inside the case:
** you need to open the case
** you need to locate connector "J1", which is a 4 pin jumper header.
*** connect the "signal" of the RTC to pin 2 of J1 (which is the onewire interface, so you can measure 0Ohm resistance between this pin and the external onewire pin on J5)
*** connect the "ground" of the RTC to pin 4 of J1 (which is logic ground, same as pin 14 of J6)

The standard firmware automatically detects and supports the RTC.