Meadow.Foundation.Motors.Stepper.Uln2003

Uln2003
Status
Source code	GitHub
Datasheet(s)	GitHub
NuGet package

ULN2003 is a high voltage, high current Darlington array containing seven open collector Darlington pairs. The ULN2003 is often packaged on board used to control stepper motors.

Code Example

Uln2003 stepperController;

publicoverrideTaskInitialize()
{
 stepperController =newUln2003(
pin1: Device.Pins.D01,
pin2: Device.Pins.D02,
pin3: Device.Pins.D03,
pin4: Device.Pins.D04);

returnbase.Initialize();
}

publicoverrideTaskRun()
{
 stepperController.Step(1024);

for(int i =0; i <100; i++)
{
 Resolver.Log.Info($"Step forward {i}");
 stepperController.Step(50);
 Thread.Sleep(10);
}

for(int i =0; i <100; i++)
{
 Resolver.Log.Info($"Step backwards {i}");
 stepperController.Step(-50);
 Thread.Sleep(10);
}

returnbase.Run();
}

Sample project(s) available on GitHub

Wiring Example

To wire a ULN2003 to your Meadow board, connect the following:

ULN2003	Meadow Pin
GND	GND
VCC	3V3
INT1	D01
INT2	D02
INT3	D03
INT4	D04

It should look like the following diagram: