// perform the 2nd stage setup that requires YoctoAPI object
protected void init(YWeighScale hwd)
{
if (hwd == null)
{
return;
}
base.init(hwd);
InternalStuff.log("registering WeighScale callback");
_func.registerValueCallback(valueChangeCallback);
}
private async void onLoad(object sender, RoutedEventArgs e)
{
try {
await YAPI.RegisterHub("usb");
sensor = YWeighScale.FirstWeighScale();
if (sensor == null)
{
await FatalError("No WeighScale connected");
}
display = YDisplay.FirstDisplay();
if (display != null)
{
//clean up
await display.resetAll();
// retreive the display size
w = await display.get_displayWidth();
h = await display.get_displayHeight();
// reteive the first layer
l0 = await display.get_displayLayer(0);
l1 = await display.get_displayLayer(1);
// display a text in the middle of the screen
await l0.selectFont("Large.yfm");
}
await sensor.set_excitation(YWeighScale.EXCITATION_AC);
await YAPI.Sleep(3000);
await sensor.tare();
unit = await sensor.get_unit();
await sensor.registerValueCallback(sensorValueChangeCallBack);
} catch (YAPI_Exception ex) {
await FatalError(ex.Message);
}
timer = new NonReentrantDispatcherTimer();
timer.Interval = new TimeSpan(0, 0, 0, 0, 100);
timer.TickTask = async() => { await dispatcherTimer_Tick(); };
timer.Start();
}