Meadow.Foundation.Motors.Stepper.A4988

A4988
Status
Source code	GitHub
Datasheet(s)	GitHub
NuGet package

Code Example

private A4988 a4988;

public override Task Initialize()
{
    a4988 = new A4988(
        step: Device.Pins.D01,
        direction: Device.Pins.D00,
        ms1Pin: Device.Pins.D04,
        ms2Pin: Device.Pins.D03,
        ms3Pin: Device.Pins.D02);

    return base.Initialize();
}

public override Task Run()
{
    var stepDivisors = (StepDivisor[])Enum.GetValues(typeof(StepDivisor));
    while (true)
    {
        foreach (var step in stepDivisors)
        {
            for (var d = 2; d < 5; d++)
            {
                Resolver.Log.Info($"180 degrees..Speed divisor = {d}..1/{(int)step} Steps..{a4988.Direction}...");
                a4988.RotationSpeedDivisor = d;
                a4988.StepDivisor = step;
                a4988.Rotate(180);

                Thread.Sleep(500);
            }
        }
        a4988.Direction = (a4988.Direction == RotationDirection.Clockwise) ? RotationDirection.CounterClockwise : RotationDirection.Clockwise;
    }
}

Sample project(s) available on GitHub

Wiring Example

To wire a A4988 to your Meadow board, connect the following:

A4988	Meadow Pin
GND	GND
VCC	5V
STEP	D01
DIRECTION	D00
M1	D04
M2	D03
M3	D02

It should look like the following diagram:

Code Example​

Wiring Example​

Code Example

Wiring Example