Class RgbPwmLed

Utility functions to provide blinking and pulsing for RgbPwmLed

Assembly: Meadow.Foundation.dll

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Declaration

public class RgbPwmLed : IRgbPwmLed, IPwmLed, IRgbLed, ILed, IDisposable

Implements:
Meadow.Peripherals.Leds.IRgbPwmLed, Meadow.Peripherals.Leds.IPwmLed, Meadow.Peripherals.Leds.IRgbLed, Meadow.Peripherals.Leds.ILed, System.IDisposable

Properties

MAX_FORWARD_VOLTAGE

Maximum forward voltage (3.3 Volts)

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Declaration

public Voltage MAX_FORWARD_VOLTAGE { get; }

MIN_FORWARD_VOLTAGE

Minimum forward voltage (0 Volts)

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Declaration

public Voltage MIN_FORWARD_VOLTAGE { get; }

IsOn

Gets or sets a value indicating whether the LED is on.

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Declaration

public bool IsOn { get; set; }

Color

The current LED color

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Declaration

public Color Color { get; protected set; }

Brightness

Gets the brightness of the LED, controlled by a PWM signal

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Declaration

public float Brightness { get; protected set; }

RedPwm

The red LED port

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Declaration

protected IPwmPort RedPwm { get; set; }

BluePwm

The blue LED port

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Declaration

protected IPwmPort BluePwm { get; set; }

GreenPwm

The green LED port

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Declaration

protected IPwmPort GreenPwm { get; set; }

Common

The common type (common anode or common cathode)

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Declaration

public CommonType Common { get; protected set; }

RedForwardVoltage

The red LED forward voltage

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Declaration

public Voltage RedForwardVoltage { get; protected set; }

GreenForwardVoltage

The green LED forward voltage

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Declaration

public Voltage GreenForwardVoltage { get; protected set; }

BlueForwardVoltage

The blue LED forward voltage

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Declaration

public Voltage BlueForwardVoltage { get; protected set; }

IsDisposed

Is the object disposed

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Declaration

public bool IsDisposed { get; }

Methods

StopAnimation()

Stops blink animation.

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Declaration

public Task StopAnimation()

Returns

System.Threading.Tasks.Task

StartBlink()

Blink animation that turns the LED on (500ms) and off (500ms)

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Declaration

public Task StartBlink()

Returns

System.Threading.Tasks.Task

StartBlink(RgbLedColors)

Start the Blink animation which sets turns the LED on and off on an interval of 1 second (500ms on, 500ms off)

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Declaration

public Task StartBlink(RgbLedColors color)

Returns

System.Threading.Tasks.Task

Parameters

Type	Name	Description
Meadow.Peripherals.Leds.RgbLedColors	color	The LED color

StartBlink(TimeSpan, TimeSpan)

Blink animation that turns the LED on and off based on the OnDuration and offDuration values in ms

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Declaration

public Task StartBlink(TimeSpan onDuration, TimeSpan offDuration)

Returns

System.Threading.Tasks.Task

Parameters

Type	Name
System.TimeSpan	onDuration
System.TimeSpan	offDuration

StartBlink(RgbLedColors, TimeSpan, TimeSpan)

Start the Blink animation which sets turns the LED on and off with the specified durations and color

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Declaration

public Task StartBlink(RgbLedColors color, TimeSpan onDuration, TimeSpan offDuration)

Returns

System.Threading.Tasks.Task

Parameters

Type	Name	Description
Meadow.Peripherals.Leds.RgbLedColors	color	The LED color
System.TimeSpan	onDuration	The duration the LED stays on
System.TimeSpan	offDuration	The duration the LED stays off

StartBlink(float, float)

Start a Blink animation which sets the brightness of the LED alternating between a low and high brightness setting.

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Declaration

public Task StartBlink(float highBrightness = 1, float lowBrightness = 0)

Returns

System.Threading.Tasks.Task

Parameters

Type	Name	Description
System.Single	highBrightness	The maximum brightness of the animation
System.Single	lowBrightness	The minimum brightness of the animation

StartBlink(Color, float, float)

Start the Blink animation which sets the brightness of the LED alternating between a low and high brightness on an interval of 1 second (500ms on, 500ms off)

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Declaration

public Task StartBlink(Color color, float highBrightness = 1, float lowBrightness = 0)

Returns

System.Threading.Tasks.Task

Parameters

Type	Name	Description
Meadow.Color	color	The LED color
System.Single	highBrightness	The maximum brightness of the animation
System.Single	lowBrightness	The minimum brightness of the animation

StartBlink(TimeSpan, TimeSpan, float, float)

Start the Blink animation which sets the brightness of the LED alternating between a low and high brightness setting, using the durations provided.

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Declaration

public Task StartBlink(TimeSpan onDuration, TimeSpan offDuration, float highBrightness = 1, float lowBrightness = 0)

Returns

System.Threading.Tasks.Task

Parameters

Type	Name	Description
System.TimeSpan	onDuration
System.TimeSpan	offDuration
System.Single	highBrightness	The maximum brightness of the animation
System.Single	lowBrightness	The minimum brightness of the animation

StartBlink(Color, TimeSpan, TimeSpan, float, float)

Start the Blink animation which sets the brightness of the LED alternating between a low and high brightness setting, using the durations provided

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Declaration

public Task StartBlink(Color color, TimeSpan onDuration, TimeSpan offDuration, float highBrightness = 1, float lowBrightness = 0)

Returns

System.Threading.Tasks.Task

Parameters

Type	Name	Description
Meadow.Color	color	The LED color
System.TimeSpan	onDuration	The duration the LED stays on
System.TimeSpan	offDuration	The duration the LED stays off
System.Single	highBrightness	The maximum brightness of the animation
System.Single	lowBrightness	The minimum brightness of the animation

StartPulse(float, float)

Start the Pulse animation which gradually alternates the brightness of the LED between a low and high brightness setting.

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Declaration

public Task StartPulse(float highBrightness = 1, float lowBrightness = 0.15)

Returns

System.Threading.Tasks.Task

Parameters

Type	Name	Description
System.Single	highBrightness	The maximum brightness of the animation
System.Single	lowBrightness	The minimum brightness of the animation

StartPulse(Color, float, float)

Start the Pulse animation which gradually alternates the brightness of the LED between a low and high brightness setting with a cycle time of 600ms

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Declaration

public Task StartPulse(Color color, float highBrightness = 1, float lowBrightness = 0.15)

Returns

System.Threading.Tasks.Task

Parameters

Type	Name	Description
Meadow.Color	color	The LED color
System.Single	highBrightness	The maximum brightness of the animation
System.Single	lowBrightness	The minimum brightness of the animation

StartPulse(Color, TimeSpan, float, float)

Start the Pulse animation which gradually alternates the brightness of the LED between a low and high brightness setting, using the duration provided and specified color

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Declaration

public Task StartPulse(Color color, TimeSpan pulseDuration, float highBrightness = 1, float lowBrightness = 0.15)

Returns

System.Threading.Tasks.Task

Parameters

Type	Name	Description
Meadow.Color	color	The LED color
System.TimeSpan	pulseDuration	The pulse animation duration
System.Single	highBrightness	The maximum brightness of the animation
System.Single	lowBrightness	The minimum brightness of the animation

StartPulse(TimeSpan, float, float)

Start the Pulse animation which gradually alternates the brightness of the LED between a low and high brightness setting, using the durations provided.

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Declaration

public Task StartPulse(TimeSpan pulseDuration, float highBrightness = 1, float lowBrightness = 0.15)

Returns

System.Threading.Tasks.Task

Parameters

Type	Name	Description
System.TimeSpan	pulseDuration	The pulse animation duration
System.Single	highBrightness	The maximum brightness of the animation
System.Single	lowBrightness	The minimum brightness of the animation

ValidateBrightness(float, float)

Validates LED brightness to ensure they're within the range 0 (off) - 1 (full brightness)

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Declaration

protected void ValidateBrightness(float highBrightness, float lowBrightness)

Parameters

Type	Name	Description
System.Single	highBrightness	The maximum brightness of the animation
System.Single	lowBrightness	The minimum brightness of the animation

ValidateForwardVoltages(Voltage, Voltage, Voltage)

Validates forward voltages to ensure they're within the range MIN_FORWARD_VOLTAGE to MAX_FORWARD_VOLTAGE

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Declaration

protected void ValidateForwardVoltages(Voltage redLedForwardVoltage, Voltage greenLedForwardVoltage, Voltage blueLedForwardVoltage)

Parameters

Type	Name	Description
Meadow.Units.Voltage	redLedForwardVoltage	The forward voltage for the red LED
Meadow.Units.Voltage	greenLedForwardVoltage	The forward voltage for the green LED
Meadow.Units.Voltage	blueLedForwardVoltage	The forward voltage for the blue LED

ResetPwmPorts()

Resets all PWM ports

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Declaration

protected void ResetPwmPorts()

SetBrightness(float)

Set the led brightness

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Declaration

public void SetBrightness(float brightness)

Parameters

Type	Name	Description
System.Single	brightness	Valid values are from 0 to 1, inclusive

SetColor(Color, float)

Sets the current color of the LED

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Declaration

public void SetColor(Color color, float brightness = 1)

Parameters

Type	Name	Description
Meadow.Color	color	The LED color
System.Single	brightness	Valid values are from 0 to 1, inclusive

SetColor(RgbLedColors)

Sets the current color of the LED.

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Declaration

public void SetColor(RgbLedColors color)

Parameters

Type	Name	Description
Meadow.Peripherals.Leds.RgbLedColors	color	The color value

Dispose()

Performs application-defined tasks associated with freeing, releasing, or resetting unmanaged resources.

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Declaration

public void Dispose()

Dispose(bool)

Dispose of the object

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Declaration

public virtual void Dispose(bool disposing)

Parameters

Type	Name	Description
System.Boolean	disposing	Is disposing

Implements

• Meadow.Peripherals.Leds.IRgbPwmLed
• Meadow.Peripherals.Leds.IPwmLed
• Meadow.Peripherals.Leds.IRgbLed
• Meadow.Peripherals.Leds.ILed
• System.IDisposable