Remarks

Is31fl3731
Status
Source code	GitHub
Datasheet(s)	GitHub
NuGet package

Code Example

Is31fl3731 iS31FL3731;

public override Task Initialize()
{
    Resolver.Log.Info("Initialize...");
    iS31FL3731 = new Is31fl3731(Device.CreateI2cBus());
    iS31FL3731.Initialize();

    return base.Initialize();
}

public override Task Run()
{
    iS31FL3731.ClearAllFrames();
    iS31FL3731.SetFrame(frame: 0);
    iS31FL3731.DisplayFrame(frame: 0);

    //Turn on all LEDs in frame
    for (byte i = 0; i <= 144; i++)
    {
        iS31FL3731.SetLedPwm(
            frame: 0,
            ledIndex: i,
            brightness: 128);

        Thread.Sleep(50);
    }

    return base.Run();
}

Sample project(s) available on GitHub

Wiring Example

To wire a Is31fl3731 to your Meadow board, connect the following:

Characteristic	Locus
Inheritance	object > Is31fl3731
Implements	II2cPeripheral
Inherited Members	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	Is31fl3731.dll

Syntax

public class Is31fl3731 : II2cPeripheral

Constructors

Is31fl3731(II2cBus, byte)

Creaete a new Is31fl3731 object

Declaration

public Is31fl3731(II2cBus i2cBus, byte address = 116)

Parameters

Type	Name	Description
II2cBus	i2cBus	The I2C bus
byte	address	The I2C address

Remarks

Is31fl3731
Status
Source code	GitHub
Datasheet(s)	GitHub
NuGet package

Code Example

Is31fl3731 iS31FL3731;

public override Task Initialize()
{
    Resolver.Log.Info("Initialize...");
    iS31FL3731 = new Is31fl3731(Device.CreateI2cBus());
    iS31FL3731.Initialize();

    return base.Initialize();
}

public override Task Run()
{
    iS31FL3731.ClearAllFrames();
    iS31FL3731.SetFrame(frame: 0);
    iS31FL3731.DisplayFrame(frame: 0);

    //Turn on all LEDs in frame
    for (byte i = 0; i <= 144; i++)
    {
        iS31FL3731.SetLedPwm(
            frame: 0,
            ledIndex: i,
            brightness: 128);

        Thread.Sleep(50);
    }

    return base.Run();
}

Sample project(s) available on GitHub

Wiring Example

To wire a Is31fl3731 to your Meadow board, connect the following:

Fields

i2cComms

I2C Communication bus used to communicate with the peripheral

Declaration

protected readonly II2cCommunications i2cComms

Field Value

Type	Description
II2cCommunications

Remarks

Is31fl3731
Status
Source code	GitHub
Datasheet(s)	GitHub
NuGet package

Code Example

Is31fl3731 iS31FL3731;

public override Task Initialize()
{
    Resolver.Log.Info("Initialize...");
    iS31FL3731 = new Is31fl3731(Device.CreateI2cBus());
    iS31FL3731.Initialize();

    return base.Initialize();
}

public override Task Run()
{
    iS31FL3731.ClearAllFrames();
    iS31FL3731.SetFrame(frame: 0);
    iS31FL3731.DisplayFrame(frame: 0);

    //Turn on all LEDs in frame
    for (byte i = 0; i <= 144; i++)
    {
        iS31FL3731.SetLedPwm(
            frame: 0,
            ledIndex: i,
            brightness: 128);

        Thread.Sleep(50);
    }

    return base.Run();
}

Sample project(s) available on GitHub

Wiring Example

To wire a Is31fl3731 to your Meadow board, connect the following:

Properties

DefaultI2cAddress

The default I2C address for the peripheral

Declaration

public byte DefaultI2cAddress { get; }

Property Value

Type	Description
byte

Remarks

Is31fl3731
Status
Source code	GitHub
Datasheet(s)	GitHub
NuGet package

Code Example

Is31fl3731 iS31FL3731;

public override Task Initialize()
{
    Resolver.Log.Info("Initialize...");
    iS31FL3731 = new Is31fl3731(Device.CreateI2cBus());
    iS31FL3731.Initialize();

    return base.Initialize();
}

public override Task Run()
{
    iS31FL3731.ClearAllFrames();
    iS31FL3731.SetFrame(frame: 0);
    iS31FL3731.DisplayFrame(frame: 0);

    //Turn on all LEDs in frame
    for (byte i = 0; i <= 144; i++)
    {
        iS31FL3731.SetLedPwm(
            frame: 0,
            ledIndex: i,
            brightness: 128);

        Thread.Sleep(50);
    }

    return base.Run();
}

Sample project(s) available on GitHub

Wiring Example

To wire a Is31fl3731 to your Meadow board, connect the following:

Frame

The current frame

Declaration

public byte Frame { get; }

Property Value

Type	Description
byte

Remarks

Is31fl3731
Status
Source code	GitHub
Datasheet(s)	GitHub
NuGet package

Code Example

Is31fl3731 iS31FL3731;

public override Task Initialize()
{
    Resolver.Log.Info("Initialize...");
    iS31FL3731 = new Is31fl3731(Device.CreateI2cBus());
    iS31FL3731.Initialize();

    return base.Initialize();
}

public override Task Run()
{
    iS31FL3731.ClearAllFrames();
    iS31FL3731.SetFrame(frame: 0);
    iS31FL3731.DisplayFrame(frame: 0);

    //Turn on all LEDs in frame
    for (byte i = 0; i <= 144; i++)
    {
        iS31FL3731.SetLedPwm(
            frame: 0,
            ledIndex: i,
            brightness: 128);

        Thread.Sleep(50);
    }

    return base.Run();
}

Sample project(s) available on GitHub

Wiring Example

To wire a Is31fl3731 to your Meadow board, connect the following:

Methods

Clear()

Turn off all LEDs for the specified frame

Declaration

public virtual void Clear()

Remarks

Is31fl3731
Status
Source code	GitHub
Datasheet(s)	GitHub
NuGet package

Code Example

Is31fl3731 iS31FL3731;

public override Task Initialize()
{
    Resolver.Log.Info("Initialize...");
    iS31FL3731 = new Is31fl3731(Device.CreateI2cBus());
    iS31FL3731.Initialize();

    return base.Initialize();
}

public override Task Run()
{
    iS31FL3731.ClearAllFrames();
    iS31FL3731.SetFrame(frame: 0);
    iS31FL3731.DisplayFrame(frame: 0);

    //Turn on all LEDs in frame
    for (byte i = 0; i <= 144; i++)
    {
        iS31FL3731.SetLedPwm(
            frame: 0,
            ledIndex: i,
            brightness: 128);

        Thread.Sleep(50);
    }

    return base.Run();
}

Sample project(s) available on GitHub

Wiring Example

To wire a Is31fl3731 to your Meadow board, connect the following:

Clear(byte)

Turn off all LEDs for the specified frame

Declaration

public virtual void Clear(byte frame)

Parameters

Type	Name	Description
byte	frame	the frame to clear

Remarks

Is31fl3731
Status
Source code	GitHub
Datasheet(s)	GitHub
NuGet package

Code Example

Is31fl3731 iS31FL3731;

public override Task Initialize()
{
    Resolver.Log.Info("Initialize...");
    iS31FL3731 = new Is31fl3731(Device.CreateI2cBus());
    iS31FL3731.Initialize();

    return base.Initialize();
}

public override Task Run()
{
    iS31FL3731.ClearAllFrames();
    iS31FL3731.SetFrame(frame: 0);
    iS31FL3731.DisplayFrame(frame: 0);

    //Turn on all LEDs in frame
    for (byte i = 0; i <= 144; i++)
    {
        iS31FL3731.SetLedPwm(
            frame: 0,
            ledIndex: i,
            brightness: 128);

        Thread.Sleep(50);
    }

    return base.Run();
}

Sample project(s) available on GitHub

Wiring Example

To wire a Is31fl3731 to your Meadow board, connect the following:

ClearAllFrames()

Turn off all LEDs

Declaration

public virtual void ClearAllFrames()

Remarks

Is31fl3731
Status
Source code	GitHub
Datasheet(s)	GitHub
NuGet package

Code Example

Is31fl3731 iS31FL3731;

public override Task Initialize()
{
    Resolver.Log.Info("Initialize...");
    iS31FL3731 = new Is31fl3731(Device.CreateI2cBus());
    iS31FL3731.Initialize();

    return base.Initialize();
}

public override Task Run()
{
    iS31FL3731.ClearAllFrames();
    iS31FL3731.SetFrame(frame: 0);
    iS31FL3731.DisplayFrame(frame: 0);

    //Turn on all LEDs in frame
    for (byte i = 0; i <= 144; i++)
    {
        iS31FL3731.SetLedPwm(
            frame: 0,
            ledIndex: i,
            brightness: 128);

        Thread.Sleep(50);
    }

    return base.Run();
}

Sample project(s) available on GitHub

Wiring Example

To wire a Is31fl3731 to your Meadow board, connect the following:

DisplayFrame(byte)

Display the specified frame

Declaration

public virtual void DisplayFrame(byte frame)

Parameters

Type	Name	Description
byte	frame	The frame number. 0-7

Remarks

Is31fl3731
Status
Source code	GitHub
Datasheet(s)	GitHub
NuGet package

Code Example

Is31fl3731 iS31FL3731;

public override Task Initialize()
{
    Resolver.Log.Info("Initialize...");
    iS31FL3731 = new Is31fl3731(Device.CreateI2cBus());
    iS31FL3731.Initialize();

    return base.Initialize();
}

public override Task Run()
{
    iS31FL3731.ClearAllFrames();
    iS31FL3731.SetFrame(frame: 0);
    iS31FL3731.DisplayFrame(frame: 0);

    //Turn on all LEDs in frame
    for (byte i = 0; i <= 144; i++)
    {
        iS31FL3731.SetLedPwm(
            frame: 0,
            ledIndex: i,
            brightness: 128);

        Thread.Sleep(50);
    }

    return base.Run();
}

Sample project(s) available on GitHub

Wiring Example

To wire a Is31fl3731 to your Meadow board, connect the following:

Initialize()

Initialize the IS31FL3731 by shutting it down, turning it back on and setting it to Picture mode.

Declaration

public void Initialize()

Remarks

Is31fl3731
Status
Source code	GitHub
Datasheet(s)	GitHub
NuGet package

Code Example

Is31fl3731 iS31FL3731;

public override Task Initialize()
{
    Resolver.Log.Info("Initialize...");
    iS31FL3731 = new Is31fl3731(Device.CreateI2cBus());
    iS31FL3731.Initialize();

    return base.Initialize();
}

public override Task Run()
{
    iS31FL3731.ClearAllFrames();
    iS31FL3731.SetFrame(frame: 0);
    iS31FL3731.DisplayFrame(frame: 0);

    //Turn on all LEDs in frame
    for (byte i = 0; i <= 144; i++)
    {
        iS31FL3731.SetLedPwm(
            frame: 0,
            ledIndex: i,
            brightness: 128);

        Thread.Sleep(50);
    }

    return base.Run();
}

Sample project(s) available on GitHub

Wiring Example

To wire a Is31fl3731 to your Meadow board, connect the following:

SelectPage(byte)

Select the page/frame

Declaration

protected virtual void SelectPage(byte page)

Parameters

Type	Name	Description
byte	page	page/frame #

Remarks

Is31fl3731
Status
Source code	GitHub
Datasheet(s)	GitHub
NuGet package

Code Example

Is31fl3731 iS31FL3731;

public override Task Initialize()
{
    Resolver.Log.Info("Initialize...");
    iS31FL3731 = new Is31fl3731(Device.CreateI2cBus());
    iS31FL3731.Initialize();

    return base.Initialize();
}

public override Task Run()
{
    iS31FL3731.ClearAllFrames();
    iS31FL3731.SetFrame(frame: 0);
    iS31FL3731.DisplayFrame(frame: 0);

    //Turn on all LEDs in frame
    for (byte i = 0; i <= 144; i++)
    {
        iS31FL3731.SetLedPwm(
            frame: 0,
            ledIndex: i,
            brightness: 128);

        Thread.Sleep(50);
    }

    return base.Run();
}

Sample project(s) available on GitHub

Wiring Example

To wire a Is31fl3731 to your Meadow board, connect the following:

SetBlinkFunctionOnAllLeds(bool)

Blink all LEDs for the current frame. Blink Mode muse be enabled

Declaration

public virtual void SetBlinkFunctionOnAllLeds(bool on)

Parameters

Type	Name	Description
bool	on	true = on, false = off

Remarks

Is31fl3731
Status
Source code	GitHub
Datasheet(s)	GitHub
NuGet package

Code Example

Is31fl3731 iS31FL3731;

public override Task Initialize()
{
    Resolver.Log.Info("Initialize...");
    iS31FL3731 = new Is31fl3731(Device.CreateI2cBus());
    iS31FL3731.Initialize();

    return base.Initialize();
}

public override Task Run()
{
    iS31FL3731.ClearAllFrames();
    iS31FL3731.SetFrame(frame: 0);
    iS31FL3731.DisplayFrame(frame: 0);

    //Turn on all LEDs in frame
    for (byte i = 0; i <= 144; i++)
    {
        iS31FL3731.SetLedPwm(
            frame: 0,
            ledIndex: i,
            brightness: 128);

        Thread.Sleep(50);
    }

    return base.Run();
}

Sample project(s) available on GitHub

Wiring Example

To wire a Is31fl3731 to your Meadow board, connect the following:

SetBlinkFunctionOnAllLeds(byte, bool)

Blink all the LEDs for the specified frame

Declaration

public virtual void SetBlinkFunctionOnAllLeds(byte frame, bool on)

Parameters

Type	Name	Description
byte	frame	frame #
bool	on	true = on, false = off

Remarks

Is31fl3731
Status
Source code	GitHub
Datasheet(s)	GitHub
NuGet package

Code Example

Is31fl3731 iS31FL3731;

public override Task Initialize()
{
    Resolver.Log.Info("Initialize...");
    iS31FL3731 = new Is31fl3731(Device.CreateI2cBus());
    iS31FL3731.Initialize();

    return base.Initialize();
}

public override Task Run()
{
    iS31FL3731.ClearAllFrames();
    iS31FL3731.SetFrame(frame: 0);
    iS31FL3731.DisplayFrame(frame: 0);

    //Turn on all LEDs in frame
    for (byte i = 0; i <= 144; i++)
    {
        iS31FL3731.SetLedPwm(
            frame: 0,
            ledIndex: i,
            brightness: 128);

        Thread.Sleep(50);
    }

    return base.Run();
}

Sample project(s) available on GitHub

Wiring Example

To wire a Is31fl3731 to your Meadow board, connect the following:

SetBlinkMode(bool, byte)

Enable/disable blink mode

Declaration

public virtual void SetBlinkMode(bool enabled, byte period)

Parameters

Type	Name	Description
bool	enabled	true = on, false = off
byte	period	the blink duration

Remarks

Is31fl3731
Status
Source code	GitHub
Datasheet(s)	GitHub
NuGet package

Code Example

Is31fl3731 iS31FL3731;

public override Task Initialize()
{
    Resolver.Log.Info("Initialize...");
    iS31FL3731 = new Is31fl3731(Device.CreateI2cBus());
    iS31FL3731.Initialize();

    return base.Initialize();
}

public override Task Run()
{
    iS31FL3731.ClearAllFrames();
    iS31FL3731.SetFrame(frame: 0);
    iS31FL3731.DisplayFrame(frame: 0);

    //Turn on all LEDs in frame
    for (byte i = 0; i <= 144; i++)
    {
        iS31FL3731.SetLedPwm(
            frame: 0,
            ledIndex: i,
            brightness: 128);

        Thread.Sleep(50);
    }

    return base.Run();
}

Sample project(s) available on GitHub

Wiring Example

To wire a Is31fl3731 to your Meadow board, connect the following:

SetFrame(byte)

Sets the current frame.

Declaration

public virtual void SetFrame(byte frame)

Parameters

Type	Name	Description
byte	frame	The frame number. 0-7

Remarks

Is31fl3731
Status
Source code	GitHub
Datasheet(s)	GitHub
NuGet package

Code Example

Is31fl3731 iS31FL3731;

public override Task Initialize()
{
    Resolver.Log.Info("Initialize...");
    iS31FL3731 = new Is31fl3731(Device.CreateI2cBus());
    iS31FL3731.Initialize();

    return base.Initialize();
}

public override Task Run()
{
    iS31FL3731.ClearAllFrames();
    iS31FL3731.SetFrame(frame: 0);
    iS31FL3731.DisplayFrame(frame: 0);

    //Turn on all LEDs in frame
    for (byte i = 0; i <= 144; i++)
    {
        iS31FL3731.SetLedPwm(
            frame: 0,
            ledIndex: i,
            brightness: 128);

        Thread.Sleep(50);
    }

    return base.Run();
}

Sample project(s) available on GitHub

Wiring Example

To wire a Is31fl3731 to your Meadow board, connect the following:

SetLedPwm(byte, byte)

Set the PWM value for the specified LED

Declaration

public virtual void SetLedPwm(byte ledIndex, byte pwm)

Parameters

Type	Name	Description
byte	ledIndex	The LED number
byte	pwm	The pwm value 0-255

Remarks

Is31fl3731
Status
Source code	GitHub
Datasheet(s)	GitHub
NuGet package

Code Example

Is31fl3731 iS31FL3731;

public override Task Initialize()
{
    Resolver.Log.Info("Initialize...");
    iS31FL3731 = new Is31fl3731(Device.CreateI2cBus());
    iS31FL3731.Initialize();

    return base.Initialize();
}

public override Task Run()
{
    iS31FL3731.ClearAllFrames();
    iS31FL3731.SetFrame(frame: 0);
    iS31FL3731.DisplayFrame(frame: 0);

    //Turn on all LEDs in frame
    for (byte i = 0; i <= 144; i++)
    {
        iS31FL3731.SetLedPwm(
            frame: 0,
            ledIndex: i,
            brightness: 128);

        Thread.Sleep(50);
    }

    return base.Run();
}

Sample project(s) available on GitHub

Wiring Example

To wire a Is31fl3731 to your Meadow board, connect the following:

SetLedPwm(byte, byte, byte)

Set the PWM value for the specified LED

Declaration

public virtual void SetLedPwm(byte frame, byte ledIndex, byte brightness)

Parameters

Type	Name	Description
byte	frame	Frame number. 0-7
byte	ledIndex	The LED number. 0-144
byte	brightness	The pwm value 0-255

Remarks

Is31fl3731
Status
Source code	GitHub
Datasheet(s)	GitHub
NuGet package

Code Example

Is31fl3731 iS31FL3731;

public override Task Initialize()
{
    Resolver.Log.Info("Initialize...");
    iS31FL3731 = new Is31fl3731(Device.CreateI2cBus());
    iS31FL3731.Initialize();

    return base.Initialize();
}

public override Task Run()
{
    iS31FL3731.ClearAllFrames();
    iS31FL3731.SetFrame(frame: 0);
    iS31FL3731.DisplayFrame(frame: 0);

    //Turn on all LEDs in frame
    for (byte i = 0; i <= 144; i++)
    {
        iS31FL3731.SetLedPwm(
            frame: 0,
            ledIndex: i,
            brightness: 128);

        Thread.Sleep(50);
    }

    return base.Run();
}

Sample project(s) available on GitHub

Wiring Example

To wire a Is31fl3731 to your Meadow board, connect the following:

SetLedState(bool)

Set the LED state for all LED's in the current Frame

Declaration

public virtual void SetLedState(bool on)

Parameters

Type	Name	Description
bool	on	true = on, false = off

Remarks

Is31fl3731
Status
Source code	GitHub
Datasheet(s)	GitHub
NuGet package

Code Example

Is31fl3731 iS31FL3731;

public override Task Initialize()
{
    Resolver.Log.Info("Initialize...");
    iS31FL3731 = new Is31fl3731(Device.CreateI2cBus());
    iS31FL3731.Initialize();

    return base.Initialize();
}

public override Task Run()
{
    iS31FL3731.ClearAllFrames();
    iS31FL3731.SetFrame(frame: 0);
    iS31FL3731.DisplayFrame(frame: 0);

    //Turn on all LEDs in frame
    for (byte i = 0; i <= 144; i++)
    {
        iS31FL3731.SetLedPwm(
            frame: 0,
            ledIndex: i,
            brightness: 128);

        Thread.Sleep(50);
    }

    return base.Run();
}

Sample project(s) available on GitHub

Wiring Example

To wire a Is31fl3731 to your Meadow board, connect the following:

SetLedState(byte, bool)

Sets the state for all LEDs for the specified frame

Declaration

public virtual void SetLedState(byte frame, bool on)

Parameters

Type	Name	Description
byte	frame
bool	on	true = on, false = off

Remarks

Is31fl3731
Status
Source code	GitHub
Datasheet(s)	GitHub
NuGet package

Code Example

Is31fl3731 iS31FL3731;

public override Task Initialize()
{
    Resolver.Log.Info("Initialize...");
    iS31FL3731 = new Is31fl3731(Device.CreateI2cBus());
    iS31FL3731.Initialize();

    return base.Initialize();
}

public override Task Run()
{
    iS31FL3731.ClearAllFrames();
    iS31FL3731.SetFrame(frame: 0);
    iS31FL3731.DisplayFrame(frame: 0);

    //Turn on all LEDs in frame
    for (byte i = 0; i <= 144; i++)
    {
        iS31FL3731.SetLedPwm(
            frame: 0,
            ledIndex: i,
            brightness: 128);

        Thread.Sleep(50);
    }

    return base.Run();
}

Sample project(s) available on GitHub

Wiring Example

To wire a Is31fl3731 to your Meadow board, connect the following:

WriteRegister(byte, byte)

Write to the current frame register

Declaration

protected virtual void WriteRegister(byte register, byte data)

Parameters

Type	Name	Description
byte	register	Register to write to
byte	data	The data value

Remarks

Is31fl3731
Status
Source code	GitHub
Datasheet(s)	GitHub
NuGet package

Code Example

Is31fl3731 iS31FL3731;

public override Task Initialize()
{
    Resolver.Log.Info("Initialize...");
    iS31FL3731 = new Is31fl3731(Device.CreateI2cBus());
    iS31FL3731.Initialize();

    return base.Initialize();
}

public override Task Run()
{
    iS31FL3731.ClearAllFrames();
    iS31FL3731.SetFrame(frame: 0);
    iS31FL3731.DisplayFrame(frame: 0);

    //Turn on all LEDs in frame
    for (byte i = 0; i <= 144; i++)
    {
        iS31FL3731.SetLedPwm(
            frame: 0,
            ledIndex: i,
            brightness: 128);

        Thread.Sleep(50);
    }

    return base.Run();
}

Sample project(s) available on GitHub

Wiring Example

To wire a Is31fl3731 to your Meadow board, connect the following:

WriteRegister(byte, byte, byte)

Write a value to a register

Declaration

protected virtual void WriteRegister(byte frame, byte register, byte data)

Parameters

Type	Name	Description
byte	frame	The frame
byte	register	Register to write to
byte	data	The data value

Remarks

Is31fl3731
Status
Source code	GitHub
Datasheet(s)	GitHub
NuGet package

Code Example

Is31fl3731 iS31FL3731;

public override Task Initialize()
{
    Resolver.Log.Info("Initialize...");
    iS31FL3731 = new Is31fl3731(Device.CreateI2cBus());
    iS31FL3731.Initialize();

    return base.Initialize();
}

public override Task Run()
{
    iS31FL3731.ClearAllFrames();
    iS31FL3731.SetFrame(frame: 0);
    iS31FL3731.DisplayFrame(frame: 0);

    //Turn on all LEDs in frame
    for (byte i = 0; i <= 144; i++)
    {
        iS31FL3731.SetLedPwm(
            frame: 0,
            ledIndex: i,
            brightness: 128);

        Thread.Sleep(50);
    }

    return base.Run();
}

Sample project(s) available on GitHub

Wiring Example

To wire a Is31fl3731 to your Meadow board, connect the following: