Class Ht16k33

Represents an Ht16k33 128 led driver and 39 key scanner

Assembly: Ht16k33.dll

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public class Ht16k33 : II2cPeripheral

Implements:
Meadow.Hardware.II2cPeripheral

Properties

DefaultI2cAddress

The default I2C address for the peripheral

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public byte DefaultI2cAddress { get; }

Fields

i2cComms

I2C Communication bus used to communicate with the peripheral

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protected readonly II2cCommunications i2cComms

Methods

Set14SegmentMessage(string)

Set a message on a 14-segment display array

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public void Set14SegmentMessage(string message)

Parameters

Type	Name	Description
System.String	message	The message (up to 4 characters)

Set14SegmentDisplay(char, int)

Set a single 14-segment display to a specific character

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public void Set14SegmentDisplay(char character, int displayIndex)

Parameters

Type	Name	Description
System.Char	character	The ASCII character
System.Int32	displayIndex	The display index (0-3)

SetIsAwake(bool)

Set controller to awake / asleep

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public void SetIsAwake(bool awake)

Parameters

Type	Name	Description
System.Boolean	awake	Awake if true

SetDisplayOn(bool)

Set display on or off

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public void SetDisplayOn(bool isOn)

Parameters

Type	Name	Description
System.Boolean	isOn	On if true

SetBlinkRate(BlinkRate)

Set display blink rate

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public void SetBlinkRate(Ht16k33.BlinkRate blinkRate)

Parameters

Type	Name	Description
Meadow.Foundation.ICs.IOExpanders.Ht16k33.BlinkRate	blinkRate	The blink rate as a byte

SetBrightness(Brightness)

Set display brightness

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public void SetBrightness(Ht16k33.Brightness brightness)

Parameters

Type	Name	Description
Meadow.Foundation.ICs.IOExpanders.Ht16k33.Brightness	brightness	The brightness

ClearDisplay()

Clear the display

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public void ClearDisplay()

UpdateDisplay()

Refresh the display

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public void UpdateDisplay()

SetLed(byte, bool)

Set an individual led on or off

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public void SetLed(byte ledIndex, bool ledOn)

Parameters

Type	Name	Description
System.Byte	ledIndex	The led index
System.Boolean	ledOn	True for on

Exceptions

System.IndexOutOfRangeException
Throws if the index is out of range

ToggleLed(byte)

Toggle an led on or off

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public void ToggleLed(byte ledIndex)

Parameters

Type	Name	Description
System.Byte	ledIndex	The led index

IsLedOn(int)

Is led at index on

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public bool IsLedOn(int ledIndex)

Returns

System.Boolean: True if on

Parameters

Type	Name	Description
System.Int32	ledIndex	The led index

Implements

• Meadow.Hardware.II2cPeripheral