static void TestTimeoutWaitAsync()
{
Console.WriteLine("Testing async wait with a timeout of 10 seconds");
var button = Pi.Gpio.Pin(buttonPin, PinKind.InputPullUp);
// Request a 10 second task to wait for the button pin rising edge
var task = button.WaitForEdgeAsync(PinEdge.Rising, 10000);
var i = 1;
var timer = PreciseTimer.Every(1000, () =>
{
if (task.IsCompleted)
{
return(false);
}
Console.WriteLine(i++);
return(i < 10 && !task.IsCompleted);
});
// Check if the task detected a rising edge before timeout was reached
if (task.Result)
{
Console.WriteLine("Rising edge found");
}
else
{
Console.WriteLine("Rising edge timed out after 10 seconds");
}
timer.Wait();
}
static void TestTimeoutWait()
{
Console.WriteLine("Testing wait with a timeout of 10 seconds");
var button = Pi.Gpio.Pin(buttonPin, PinKind.InputPullUp);
var done = false;
var i = 1;
var timer = PreciseTimer.Every(1000, () =>
{
if (done)
{
return(false);
}
Console.WriteLine(i++);
return(i < 10 && !done);
});
// Wait 10 seconds for the button pin rising edge
if (button.WaitForEdge(PinEdge.Rising, 10000))
{
Console.WriteLine("Rising edge found");
}
else
{
Console.WriteLine("Rising edge timed out after 10 seconds");
}
done = true;
timer.Wait();
}
public static void TimerEveryTest()
{
var a = new PreciseTimer();
long i = 0;
var running = true;
var every = PreciseTimer.Every(1, () =>
{
i++;
if (i % 1000 == 0)
{
Console.WriteLine("elapsed = {0:0.000}, i = {1}", a.ElapsedMilliseconds, i);
}
return(running);
});
Console.ReadLine();
running = false;
every.Wait();
}
static void TestSweep()
{
Console.WriteLine("Testing a servo motor in a sweeping motion");
var angle = 0d;
var step = 0.1d;
var done = false;
using (var left = Pi.Gpio.Pin(leftPin, PinKind.InputPullUp))
using (var right = Pi.Gpio.Pin(rightPin, PinKind.InputPullUp))
using (var servo = new ServoMotor(maxAngle))
{
servo.PulseWidths(0.5, 2.5);
servo.Start();
var timer = PreciseTimer.Every(1, () =>
{
if (done)
{
return(false);
}
angle += step;
var a = angle % (maxAngle * 2);
if (a > maxAngle)
{
a = (maxAngle * 2) - a;
}
servo.Angle = a;
return(true);
});
Console.WriteLine("Click the button to stop this test");
// Connect rotate and click events
left.OnRisingEdge += Rotate;
Pi.Gpio.Pin(buttonPin, PinKind.InputPullUp).WaitForEdge(PinEdge.Rising);
left.OnRisingEdge -= Rotate;
done = true;
timer.Wait();
servo.Angle = 0;
Pi.Wait(2000);
// Called on the falling edge of the left pin
void Rotate(object sender, PinEventHandlerArgs args)
{
if (args.Bounced)
{
return;
}
var s = step;
if (left.Value == right.Value)
{
s += 0.1;
}
else
{
s -= 0.1;
}
if (s < 0)
{
s = 0;
}
step = s;
Console.WriteLine("servo step {0:0.0}°", step);
}
}
}
