I'm building a heads up display for OBD data (speed, RPM, throttle position etc.) using Glass.

I am using a LiveCard to display the HUD, but like all cards it fades away after a few seconds as Glass puts the display to sleep. 

Is there a way to force the card to remain visible until it's dismissed? A HUD display isn't very useful if it keeps needing to be woken up.

The code thus far is here: <https://github.com/mpicco/glass-obd-hud>.

Thanks,

Marty