Buttons

Free Willi includes 5 buttons. These are used to control the user interface. The buttons support clicking, double clicking, startup press, and long press.

Button Fixed Functions

The gray button is hard wired to the battery controller. This will wake the device from a shutdown if held for two seconds.

The red button is hard wired to the BOOTSEL feature of the Main CPU. There on a power up this will be read to determine if the Main should stay in the bootloader.

The Blue button is used by the display to enter the boot-loader. This is done in software. So if the display processor enters bootloader it will not return to the main software until the battery is depleted or a valid UF2 file is flashed. The blue button will only enter bootloader on a long press on the main screen.

Roku Remote Click Simulation

The Roku Remote can be enabled to simulate a click event on the 5 buttons. More information in the IR topic.

API

The buttons are available though API through events. Also, you can enable a button menu through the setPanelMenuText API. Please note the panel must enable the panel menu.

// Set Menu panel text, A null string will clear it, must be enabled on panel
void setPanelMenuText(int iPanel, int iButtonGreyFromZero, const char * szMessage);

case FWGUI_EVENT_GRAY_BUTTON:
        return "graybutton";
case FWGUI_EVENT_YELLOW_BUTTON:
        return "yellowbutton";
case FWGUI_EVENT_GREEN_BUTTON:
        return "greenbutton";
case FWGUI_EVENT_BLUE_BUTTON:
        return "bluebutton";
case FWGUI_EVENT_RED_BUTTON:
        return "redbutton";
                        
printf("event %s ", getEventName(stEvents[iCount].iEvent));
        if (stEvents[iCount].iEvent >= FWGUI_EVENT_GRAY_BUTTON && 
                        stEvents[iCount].iEvent <= FWGUI_EVENT_RED_BUTTON)
        {
               printf("%s ",  getButtonData(stEvents[iCount].btData[0]));
        }
                        
const char * getButtonData(int iValue)
{
        switch (iValue)
        {
                case (int)rpFWGUIButtonEvent::clicked:
                        return "clicked";
                case (int)rpFWGUIButtonEvent::doubleclicked:
                        return "doubleclick";
                case (int)rpFWGUIButtonEvent::longpress:
                        return "longpress";
                case (int)rpFWGUIButtonEvent::poweruppressed:
                        return "longpress";
        }
        return "";
}