Remarks

Mcp3208
Status
Source code	GitHub
Datasheet(s)	GitHub
NuGet package

Code Example

Mcp3208 mcp;

IAnalogInputPort port;

public override Task Initialize()
{
    Resolver.Log.Info("Initialize");

    IDigitalOutputPort chipSelectPort = Device.CreateDigitalOutputPort(Device.Pins.D01);

    mcp = new Mcp3208(Device.CreateSpiBus(), chipSelectPort);

    port = mcp.CreateAnalogInputPort(mcp.Pins.CH0, 32, TimeSpan.FromSeconds(1), new Voltage(3.3, Voltage.UnitType.Volts), Mcp3xxx.InputType.SingleEnded);

    port.Updated += (s, result) =>
    {
        Resolver.Log.Info($"Analog event, new voltage: {result.New.Volts:N2}V, old: {result.Old?.Volts:N2}V");
    };

    var observer = IAnalogInputPort.CreateObserver(
        handler: result =>
        {
            Resolver.Log.Info($"Analog observer triggered; new: {result.New.Volts:n2}V, old: {result.Old?.Volts:n2}V");
        },
        filter: result =>
        {
            if (result.Old is { } oldValue)
            {
                return (result.New - oldValue).Abs().Volts > 0.1;
            }
            else { return false; }
        }
    );
    port.Subscribe(observer);

    return base.Initialize();
}

public override Task Run()
{
    Resolver.Log.Info("Run");

    port.StartUpdating();

    return Task.CompletedTask;
}

Sample project(s) available on GitHub

Characteristic	Locus
Inheritance	object Mcp3xxx > Mcp3208
Implements	IAnalogInputController IPinController ISpiPeripheral IDisposable
Inherited Members	Mcp3xxx.IsDisposed Mcp3xxx.SpiComms Mcp3xxx.ChannelCount Mcp3xxx.DefaultSpiBusSpeed Mcp3xxx.SpiBusSpeed Mcp3xxx.DefaultSpiBusMode Mcp3xxx.SpiBusMode Mcp3xxx.AdcResolutionInBits Mcp3xxx.CreateAnalogInputPort(IPin, int) Mcp3xxx.CreateAnalogInputPort(IPin, int, TimeSpan, Voltage) Mcp3xxx.CreateAnalogInputPort(IPin, int, TimeSpan, Voltage, Mcp3xxx.InputType) Mcp3xxx.CreateAnalogInputArray(params IPin[]) Mcp3xxx.IsInputTypeSupported(Mcp3xxx.InputType) Mcp3xxx.ValidateChannel(int, int) Mcp3xxx.ValidateChannelPairing(int, int) Mcp3xxx.ReadSingleEnded(int) Mcp3xxx.ReadPseudoDifferential(int, int) Mcp3xxx.ReadDifferential(int, int) Mcp3xxx.ReadInternal(int, Mcp3xxx.InputType, int) Mcp3xxx.ReadInternalRaw(int, int, int) Mcp3xxx.Dispose() Mcp3xxx.Dispose(bool) object.Equals(object) object.Equals(object, object) object.GetHashCode() object.GetType() object.MemberwiseClone() object.ReferenceEquals(object, object) object.ToString()
Namespace	Meadow.Foundation.ICs.IOExpanders
Assembly	Mcp3xxx.dll

Syntax

public class Mcp3208 : Mcp3xxx, IAnalogInputController, IPinController, ISpiPeripheral, IDisposable

Constructors

Mcp3208(ISpiBus, IDigitalOutputPort)

Constructs Mcp3208 instance

Declaration

public Mcp3208(ISpiBus spiBus, IDigitalOutputPort chipSelectPort)

Parameters

Type	Name	Description
ISpiBus	spiBus	The SPI bus
IDigitalOutputPort	chipSelectPort	Chip select port

Remarks

Mcp3208
Status
Source code	GitHub
Datasheet(s)	GitHub
NuGet package

Code Example

Mcp3208 mcp;

IAnalogInputPort port;

public override Task Initialize()
{
    Resolver.Log.Info("Initialize");

    IDigitalOutputPort chipSelectPort = Device.CreateDigitalOutputPort(Device.Pins.D01);

    mcp = new Mcp3208(Device.CreateSpiBus(), chipSelectPort);

    port = mcp.CreateAnalogInputPort(mcp.Pins.CH0, 32, TimeSpan.FromSeconds(1), new Voltage(3.3, Voltage.UnitType.Volts), Mcp3xxx.InputType.SingleEnded);

    port.Updated += (s, result) =>
    {
        Resolver.Log.Info($"Analog event, new voltage: {result.New.Volts:N2}V, old: {result.Old?.Volts:N2}V");
    };

    var observer = IAnalogInputPort.CreateObserver(
        handler: result =>
        {
            Resolver.Log.Info($"Analog observer triggered; new: {result.New.Volts:n2}V, old: {result.Old?.Volts:n2}V");
        },
        filter: result =>
        {
            if (result.Old is { } oldValue)
            {
                return (result.New - oldValue).Abs().Volts > 0.1;
            }
            else { return false; }
        }
    );
    port.Subscribe(observer);

    return base.Initialize();
}

public override Task Run()
{
    Resolver.Log.Info("Run");

    port.StartUpdating();

    return Task.CompletedTask;
}

Sample project(s) available on GitHub

Properties

Pins

The pins

Declaration

public Mcp3208.PinDefinitions Pins { get; }

Property Value

Type	Description
Mcp3208.PinDefinitions

Remarks

Mcp3208
Status
Source code	GitHub
Datasheet(s)	GitHub
NuGet package

Code Example

Mcp3208 mcp;

IAnalogInputPort port;

public override Task Initialize()
{
    Resolver.Log.Info("Initialize");

    IDigitalOutputPort chipSelectPort = Device.CreateDigitalOutputPort(Device.Pins.D01);

    mcp = new Mcp3208(Device.CreateSpiBus(), chipSelectPort);

    port = mcp.CreateAnalogInputPort(mcp.Pins.CH0, 32, TimeSpan.FromSeconds(1), new Voltage(3.3, Voltage.UnitType.Volts), Mcp3xxx.InputType.SingleEnded);

    port.Updated += (s, result) =>
    {
        Resolver.Log.Info($"Analog event, new voltage: {result.New.Volts:N2}V, old: {result.Old?.Volts:N2}V");
    };

    var observer = IAnalogInputPort.CreateObserver(
        handler: result =>
        {
            Resolver.Log.Info($"Analog observer triggered; new: {result.New.Volts:n2}V, old: {result.Old?.Volts:n2}V");
        },
        filter: result =>
        {
            if (result.Old is { } oldValue)
            {
                return (result.New - oldValue).Abs().Volts > 0.1;
            }
            else { return false; }
        }
    );
    port.Subscribe(observer);

    return base.Initialize();
}

public override Task Run()
{
    Resolver.Log.Info("Run");

    port.StartUpdating();

    return Task.CompletedTask;
}

Sample project(s) available on GitHub