Program.cs

using SimpleGPIO.Boards;
using SimpleGPIO.Components;
using SimpleGPIO.Power;

using var pi = new RaspberryPi();
var matrix = new DotMatrix(
	new DotMatrix.PinSet
	{
		//rows
		Pin1 = pi.GPIO5, Pin2 = pi.GPIO7, Pin3 = pi.GPIO12, Pin4 = pi.GPIO13, Pin5 = pi.GPIO8, Pin6 = pi.GPIO15, Pin7 = pi.GPIO6, Pin8 = pi.GPIO3,

		//columns
		Pin9 = pi.GPIO1, Pin10 = pi.GPIO14, Pin11 = pi.GPIO16, Pin12 = pi.GPIO4, Pin13 = pi.GPIO11, Pin14 = pi.GPIO2, Pin15 = pi.GPIO17, Pin16 = pi.GPIO18
	}
);

matrix.SetAllRows(PowerValue.Off);
matrix.SetAllColumns(PowerValue.On);

for (var x = 0; x < 8; x++)
{
	if (x > 0)
		matrix.Row[x - 1].TurnOff();

	matrix.Row[x].TurnOn();
	await Task.Delay(100);
}

matrix.SetAllColumns(PowerValue.Off);
matrix.SetAllRows(PowerValue.On);

for (var x = 0; x < 8; x++)
{
	if (x > 0)
		matrix.Column[x - 1].TurnOff();

	matrix.Column[x].TurnOn();
	await Task.Delay(100);
}

for (var x = 0; x < 3; x++)
{
	matrix.SetAll(PowerValue.Off);
	await Task.Delay(100);

	matrix.SetRows(new DotMatrix.PowerSet { Item1 = PowerValue.Off, Item2 = PowerValue.Off, Item3 = PowerValue.Off, Item4 = PowerValue.On, Item5 = PowerValue.On, Item6 = PowerValue.Off, Item7 = PowerValue.Off, Item8 = PowerValue.Off });
	matrix.SetColumns(new DotMatrix.PowerSet { Item1 = PowerValue.Off, Item2 = PowerValue.Off, Item3 = PowerValue.Off, Item4 = PowerValue.On, Item5 = PowerValue.On, Item6 = PowerValue.Off, Item7 = PowerValue.Off, Item8 = PowerValue.Off });
	await Task.Delay(100);

	matrix.SetRows(new DotMatrix.PowerSet { Item1 = PowerValue.Off, Item2 = PowerValue.Off, Item3 = PowerValue.On, Item4 = PowerValue.On, Item5 = PowerValue.On, Item6 = PowerValue.On, Item7 = PowerValue.Off, Item8 = PowerValue.Off });
	matrix.SetColumns(new DotMatrix.PowerSet { Item1 = PowerValue.Off, Item2 = PowerValue.Off, Item3 = PowerValue.On, Item4 = PowerValue.On, Item5 = PowerValue.On, Item6 = PowerValue.On, Item7 = PowerValue.Off, Item8 = PowerValue.Off });
	await Task.Delay(100);

	matrix.SetRows(new DotMatrix.PowerSet { Item1 = PowerValue.Off, Item2 = PowerValue.On, Item3 = PowerValue.On, Item4 = PowerValue.On, Item5 = PowerValue.On, Item6 = PowerValue.On, Item7 = PowerValue.On, Item8 = PowerValue.Off });
	matrix.SetColumns(new DotMatrix.PowerSet { Item1 = PowerValue.Off, Item2 = PowerValue.On, Item3 = PowerValue.On, Item4 = PowerValue.On, Item5 = PowerValue.On, Item6 = PowerValue.On, Item7 = PowerValue.On, Item8 = PowerValue.Off });
	await Task.Delay(100);

	matrix.SetRows(new DotMatrix.PowerSet { Item1 = PowerValue.On, Item2 = PowerValue.On, Item3 = PowerValue.On, Item4 = PowerValue.On, Item5 = PowerValue.On, Item6 = PowerValue.On, Item7 = PowerValue.On, Item8 = PowerValue.On });
	matrix.SetColumns(new DotMatrix.PowerSet { Item1 = PowerValue.On, Item2 = PowerValue.On, Item3 = PowerValue.On, Item4 = PowerValue.On, Item5 = PowerValue.On, Item6 = PowerValue.On, Item7 = PowerValue.On, Item8 = PowerValue.On });
	await Task.Delay(100);
}

await Task.Delay(100);
matrix.SetAll(PowerValue.Off);