jamesoncollins / gauge_driver Goto Github PK

What i've tried:

1. VBAT is connected
2. RTC is enabled
3. LSE is enabled

Currently we flush the entire screen to black, and then redraw each screen element, for every frame. This is a waste since very few things change per frame.

Consider changing to a widget style, which is already available in uGFX, which can store teh state of the widgets and only update the parts of the widget that changed.

1. Don't clear to black
2. Widgets need to clear their now blank pixels
3. Widgets need to store their state.

I'm assuming we're correctly soldered to D-05#14. It seems that we aren't picking up any voltage changes here. I believe that this signal should be LOW when the car isn't running. I also assume that when the car starts that this pin either goes HIGH, or it goes HIGH-Z. I don't know which, so currently I have the pin pulled high in software. This might be a problem for other circuits in the car, but I think the high source impedance of the voltage clamps should make it fine.