We have problem about "android listener". We want to get single from android button on UDOO board. But it unable to maintain single form it. Our app is control by arduino button. After few seconds later , we can't use button to control it. Our project is "Smart Helmet for Motorcycle" as Skully did. We know that drivers can't control it by touch screen , so we use button to replace screen.(We want to use voice control , but we don't have enough knowledge.) Anyone have idea to solve it ?