gb.update
From Gamebuino Wiki
Description
Returns true and updates everything (display, sound, batter monitor, etc.) at a fixed frequency (20 times per second by default).
It should be used in a specific conditional structure, see "Syntax".
Syntax
while(1){ if(gb.update()){ //your game here } }
Parameters
none
Returns
boolean: true if enough time has elapsed since the last frame (20 frames per second = 50ms per frame).
Example