Difference between revisions of "Component: LED WS2801 (Outputs: LEDs)"

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[[File:LED_3D.png]]
 
[[File:LED_3D.png]]
 +
 +
 +
===3V3 Microcontrollers===
 +
 +
Note you may have to voltage shift the micro controller control pins to meet the 0.8 * VDD minimum requirement. E.g. if VDD is 5V then the input voltage needs to be at least 4V.
 +
 +
A simple buffer IC could be used to do the voltage shifting.
  
 
==Examples==
 
==Examples==
−
 
 
===RGB Mood Light===
 
===RGB Mood Light===
  
 
A simple example using three potentiometers to set the individual Red, Green and Blue channels of the LED colour.
 
A simple example using three potentiometers to set the individual Red, Green and Blue channels of the LED colour.
−
 
 
{{Fcfile|MoodLightStrip.fcfx|MoodLight}}
 
{{Fcfile|MoodLightStrip.fcfx|MoodLight}}
−
 
 
[[File:MoodLight.jpg]]
 
[[File:MoodLight.jpg]]
  
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A simple example which picks a random colour assigns it to the first LED, then shifts and repeats.
 
A simple example which picks a random colour assigns it to the first LED, then shifts and repeats.
−
 
 
{{Fcfile|AnimLightStrip.fcfx|AnimatedLightStrip}}
 
{{Fcfile|AnimLightStrip.fcfx|AnimatedLightStrip}}
−
 
 
[[File:AnimLight.jpg]]
 
[[File:AnimLight.jpg]]
  
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A simple example which picks a random colour assigns it to the first LED, then shifts and repeats.
 
A simple example which picks a random colour assigns it to the first LED, then shifts and repeats.
 +
{{Fcfile|AnimLightCascade.fcfx|AnimatedLightCascade}}
 +
[[File:AnimLight2.jpg]]
 +
 +
==Downloadable macro reference==
 +
 +
===<span style="font-weight: normal;"><u><tt>SetBrightness</tt></u></span>===
 +
Allows the output colour brightness of the LEDs to be scaled down. For example to save current usage or to reduce brightness in dark environments.
 +
 +
'''Parameters'''
 +
 +
:[[Variable Types|FLOAT]] ''Scaler''
 +
::Range: 0.0 to 1.0 Default: 1.0, 0 = Off, 0.5 = Half Brightness, 1.0 = Full Brightness
 +
 +
 +
'''Return value'''
 +
 +
:''This call does not return a value''
 +
 +
 +
===<span style="font-weight: normal;"><u><tt>GetLEDColour</tt></u></span>===
 +
Sets the colour of a single LED in RAM as a 1D array.
 +
 +
'''Parameters'''
  
−
{{Fcfile|AnimLightCascade.fcfx|AnimatedLightCascade}}
+
:[[Variable Types|UINT]] ''LED''
 +
::LED to change the colour / Range: 0 to (LED Count - 1)
 +
 
 +
:[[Variable Types|BYTE]] ''ColIdx''
 +
::0 = R, 1 = G, 2 = B
  
−
[[File:AnimLight2.jpg]]
 
  
 +
'''Return value'''
  
 +
:[[Variable Types|BYTE]]
  
−
==Downloadable macro reference==
 
  
 
===<span style="font-weight: normal;"><u><tt>DrawLine2D</tt></u></span>===
 
===<span style="font-weight: normal;"><u><tt>DrawLine2D</tt></u></span>===
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:''This macro has no parameters''
 
:''This macro has no parameters''
 +
 +
 +
'''Return value'''
 +
 +
:''This call does not return a value''
 +
 +
 +
===<span style="font-weight: normal;"><u><tt>ShiftLEDs1D</tt></u></span>===
 +
Shifts the LED colours in 1D and wraps
 +
 +
'''Parameters'''
 +
 +
:[[Variable Types|BYTE]] ''Direction''
 +
::0 = Forwards, 1 = Backwards
 +
 +
:[[Variable Types|BYTE]] ''DataMode''
 +
::0=ResetToZero, 1=WrapAroundDisplay, 2=Smear
  
  
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−
===<span style="font-weight: normal;"><u><tt>SetLEDColour2D</tt></u></span>===
+
===<span style="font-weight: normal;"><u><tt>GetLEDIndex2D</tt></u></span>===
−
Sets the colour of a single LED in RAM as a 2D array.
+
Sets the index of a single LED in RAM as a 2D array.
  
 
'''Parameters'''
 
'''Parameters'''
  
−
:[[Variable Types|UINT]] ''LED_Column''
+
:[[Variable Types|UINT]] ''X''
 
::LED Column to change the colour / Range: 0 to (LED Column - 1)
 
::LED Column to change the colour / Range: 0 to (LED Column - 1)
  
−
:[[Variable Types|UINT]] ''LED_Row''
+
:[[Variable Types|UINT]] ''Y''
 
::LED Row to change the colour / Range: 0 to (LED Row - 1)
 
::LED Row to change the colour / Range: 0 to (LED Row - 1)
 +
 +
 +
'''Return value'''
 +
 +
:[[Variable Types|UINT]]
 +
 +
 +
===<span style="font-weight: normal;"><u><tt>DrawRectangle2D</tt></u></span>===
 +
Draws a basic 2D rectangle onto the LEDs
 +
 +
'''Parameters'''
 +
 +
:[[Variable Types|BYTE]] ''X1''
 +
 +
:[[Variable Types|BYTE]] ''Y1''
 +
 +
:[[Variable Types|BYTE]] ''X2''
 +
 +
:[[Variable Types|BYTE]] ''Y2''
 +
 +
:[[Variable Types|BYTE]] ''DrawStyle''
 +
::Sets the draw style - 0=Soild, 1=Edge, 2=Corners
  
 
:[[Variable Types|BYTE]] ''R''
 
:[[Variable Types|BYTE]] ''R''
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−
===<span style="font-weight: normal;"><u><tt>SetLEDColour3D</tt></u></span>===
+
===<span style="font-weight: normal;"><u><tt>ShiftLEDs2D</tt></u></span>===
−
Sets the colour of a single LED in RAM as a 3D array.
+
Shifts the contents of the display by the number of vertices specified
 +
 
 +
***Please Note that Wrap mode is currently unavailable***
 +
 
 +
'''Parameters'''
 +
 
 +
:[[Variable Types|INT]] ''X''
 +
::Number of pixels to shift the display -1 to 1 / 0 = No Shift
 +
 
 +
:[[Variable Types|INT]] ''Y''
 +
::Number of pixels to shift the display -1 to 1 / 0 = No Shift
 +
 
 +
:[[Variable Types|BYTE]] ''DataMode''
 +
::0=ResetToZero, 1=WrapAroundDisplay, 2=Smear
 +
 
 +
 
 +
'''Return value'''
 +
 
 +
:''This call does not return a value''
 +
 
 +
 
 +
===<span style="font-weight: normal;"><u><tt>GetLEDIndex3D</tt></u></span>===
 +
Gets the index of a single LED in RAM as a 3D array.
  
 
'''Parameters'''
 
'''Parameters'''
  
−
:[[Variable Types|UINT]] ''LED_Column''
+
:[[Variable Types|UINT]] ''X''
 
::LED Column to change the colour / Range: 0 to (LED Column - 1)
 
::LED Column to change the colour / Range: 0 to (LED Column - 1)
  
−
:[[Variable Types|UINT]] ''LED_Row''
+
:[[Variable Types|UINT]] ''Y''
 
::LED Row to change the colour / Range: 0 to (LED Row - 1)
 
::LED Row to change the colour / Range: 0 to (LED Row - 1)
  
−
:[[Variable Types|UINT]] ''LED_Layer''
+
:[[Variable Types|UINT]] ''Z''
 
::LED Layer to change the colour / Range: 0 to (LED Layer - 1)
 
::LED Layer to change the colour / Range: 0 to (LED Layer - 1)
 +
 +
 +
'''Return value'''
 +
 +
:[[Variable Types|UINT]]
 +
 +
 +
===<span style="font-weight: normal;"><u><tt>DrawCuboid3D</tt></u></span>===
 +
Draws a basic 3D cuboid onto the LEDs
 +
 +
'''Parameters'''
 +
 +
:[[Variable Types|BYTE]] ''X1''
 +
 +
:[[Variable Types|BYTE]] ''Y1''
 +
 +
:[[Variable Types|BYTE]] ''Z1''
 +
 +
:[[Variable Types|BYTE]] ''X2''
 +
 +
:[[Variable Types|BYTE]] ''Y2''
 +
 +
:[[Variable Types|BYTE]] ''Z2''
 +
 +
:[[Variable Types|BYTE]] ''DrawStyle''
 +
::Sets the draw style - 0=Soild, 1=Edge, 2=Corners
  
 
:[[Variable Types|BYTE]] ''R''
 
:[[Variable Types|BYTE]] ''R''
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:''This macro has no parameters''
 
:''This macro has no parameters''
 +
 +
 +
'''Return value'''
 +
 +
:''This call does not return a value''
 +
 +
 +
===<span style="font-weight: normal;"><u><tt>ShiftLEDs3D</tt></u></span>===
 +
Shifts the contents of the display by the number of vertices specified
 +
 +
***Please Note that Wrap mode is currently unavailable***
 +
 +
'''Parameters'''
 +
 +
:[[Variable Types|INT]] ''X''
 +
::Number of pixels to shift the display -1 to 1 / 0 = No Shift
 +
 +
:[[Variable Types|INT]] ''Y''
 +
::Number of pixels to shift the display -1 to 1 / 0 = No Shift
 +
 +
:[[Variable Types|INT]] ''Z''
 +
::Number of pixels to shift the display -1 to 1 / 0 = No Shift
 +
 +
:[[Variable Types|BYTE]] ''DataMode''
 +
::0=ResetToZero, 1=WrapAroundDisplay, 2=Smear
  
  
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Y Spacing Between LEDs on the Panel
 
Y Spacing Between LEDs on the Panel
  
−
<span style="font-weight: normal;"><u>LED Layers</u></span>
+
<span style="font-weight: normal;"><u>Flip X</u></span>
−
 
 
−
This property is of type ''Unsigned integer'' and can be referenced with the variable name ''LED_Layers''.
 
  
−
Number of LED layers - Z axis
+
This property is of type ''True or false'' and can be referenced with the variable name ''FlipX''.
  
−
<span style="font-weight: normal;"><u>Layer Spacing</u></span>
+
Flips the X axis if the LEDs are wired from the right hand side of the display.
  
−
This property is of type ''Floating point'' and can be referenced with the variable name ''z_spacing''.
+
<span style="font-weight: normal;"><u>Flip Y</u></span>
  
−
Z Spacing Between LEDs on the Panel
+
This property is of type ''True or false'' and can be referenced with the variable name ''FlipY''.
  
 +
Flips the Y axis if the LEDs are wired from the bottom side of the display.
  
 
<span style="font-weight: normal;"><u>Output Mode</u></span>
 
<span style="font-weight: normal;"><u>Output Mode</u></span>

Latest revision as of 15:46, 16 February 2017


Author Matrix TSL
Version 1.1 (Release)
Category Outputs: LEDs


Image LED WS2801 component

A simple chained RGB LED controller IC allowing multiple LEDs to be controlled using a serial data stream. Allows RGB LEDs to be driven with full 24-bit colour depth. Allows single chains, 2D arrays and 3D cube formations to be simulated. Supports Bit Banged or SPI peripheral based data modes.

Detailed description

1D Configuration

In the 1D configuration each LED simply follows on from the last in a chain.

LED 1D.png


2D Configuration

In the 2D configuration each LED follows on from the last in a chain which travels back and forth through the columns a row at a time.

LED 2D.png


3D Configuration

In the 3D configuration each layer follows the 2D configuration with each layer then following on by mirroring the layer below. First layer connections are shown in Red and second layer connections are shown in Blue.

LED 3D.png


3V3 Microcontrollers

Note you may have to voltage shift the micro controller control pins to meet the 0.8 * VDD minimum requirement. E.g. if VDD is 5V then the input voltage needs to be at least 4V.

A simple buffer IC could be used to do the voltage shifting.

Examples

RGB Mood Light

A simple example using three potentiometers to set the individual Red, Green and Blue channels of the LED colour. FC6 Icon.png MoodLight MoodLight.jpg


Animated Light

A simple example which picks a random colour assigns it to the first LED, then shifts and repeats. FC6 Icon.png AnimatedLightStrip AnimLight.jpg


Animated Light Cascade

A simple example which picks a random colour assigns it to the first LED, then shifts and repeats. FC6 Icon.png AnimatedLightCascade AnimLight2.jpg

Downloadable macro reference

SetBrightness

Allows the output colour brightness of the LEDs to be scaled down. For example to save current usage or to reduce brightness in dark environments.

Parameters

FLOAT Scaler
Range: 0.0 to 1.0 Default: 1.0, 0 = Off, 0.5 = Half Brightness, 1.0 = Full Brightness


Return value

This call does not return a value


GetLEDColour

Sets the colour of a single LED in RAM as a 1D array.

Parameters

UINT LED
LED to change the colour / Range: 0 to (LED Count - 1)
BYTE ColIdx
0 = R, 1 = G, 2 = B


Return value

BYTE


DrawLine2D

Draws a line on a 2D array of LEDs

Parameters

UINT X1
UINT Y1
UINT X2
UINT Y2
BYTE R
BYTE G
BYTE B


Return value

This call does not return a value


SetAllLEDColour

Sets the colour of all the LEDs in RAM

Parameters

BYTE R
BYTE G
BYTE B


Return value

This call does not return a value


SetLEDColour

Sets the colour of a single LED in RAM as a 1D array.

Parameters

UINT LED
LED to change the colour / Range: 0 to (LED Count - 1)
BYTE R
BYTE G
BYTE B


Return value

This call does not return a value


Refresh

Clocks out the current colour data to the LEDs from the values stored in RAM

Parameters

This macro has no parameters


Return value

This call does not return a value


ShiftLEDs1D

Shifts the LED colours in 1D and wraps

Parameters

BYTE Direction
0 = Forwards, 1 = Backwards
BYTE DataMode
0=ResetToZero, 1=WrapAroundDisplay, 2=Smear


Return value

This call does not return a value


DrawLine3D

Draws a line on a 3D array of LEDs

Parameters

UINT X1
UINT Y1
UINT Z1
UINT X2
UINT Y2
UINT Z2
BYTE R
BYTE G
BYTE B


Return value

This call does not return a value


GetLEDIndex2D

Sets the index of a single LED in RAM as a 2D array.

Parameters

UINT X
LED Column to change the colour / Range: 0 to (LED Column - 1)
UINT Y
LED Row to change the colour / Range: 0 to (LED Row - 1)


Return value

UINT


DrawRectangle2D

Draws a basic 2D rectangle onto the LEDs

Parameters

BYTE X1
BYTE Y1
BYTE X2
BYTE Y2
BYTE DrawStyle
Sets the draw style - 0=Soild, 1=Edge, 2=Corners
BYTE R
BYTE G
BYTE B


Return value

This call does not return a value


ShiftLEDs2D

Shifts the contents of the display by the number of vertices specified

      • Please Note that Wrap mode is currently unavailable***

Parameters

INT X
Number of pixels to shift the display -1 to 1 / 0 = No Shift
INT Y
Number of pixels to shift the display -1 to 1 / 0 = No Shift
BYTE DataMode
0=ResetToZero, 1=WrapAroundDisplay, 2=Smear


Return value

This call does not return a value


GetLEDIndex3D

Gets the index of a single LED in RAM as a 3D array.

Parameters

UINT X
LED Column to change the colour / Range: 0 to (LED Column - 1)
UINT Y
LED Row to change the colour / Range: 0 to (LED Row - 1)
UINT Z
LED Layer to change the colour / Range: 0 to (LED Layer - 1)


Return value

UINT


DrawCuboid3D

Draws a basic 3D cuboid onto the LEDs

Parameters

BYTE X1
BYTE Y1
BYTE Z1
BYTE X2
BYTE Y2
BYTE Z2
BYTE DrawStyle
Sets the draw style - 0=Soild, 1=Edge, 2=Corners
BYTE R
BYTE G
BYTE B


Return value

This call does not return a value


Initialise

Inisialises the RGB colour RAM to 0,0,0 = LED Off and clocks out the data to

initialise all the WS2801 ICs in the chain.

Parameters

This macro has no parameters


Return value

This call does not return a value


ShiftLEDs3D

Shifts the contents of the display by the number of vertices specified

      • Please Note that Wrap mode is currently unavailable***

Parameters

INT X
Number of pixels to shift the display -1 to 1 / 0 = No Shift
INT Y
Number of pixels to shift the display -1 to 1 / 0 = No Shift
INT Z
Number of pixels to shift the display -1 to 1 / 0 = No Shift
BYTE DataMode
0=ResetToZero, 1=WrapAroundDisplay, 2=Smear


Return value

This call does not return a value


Simulation macro reference

This component does not contain any simulation macros


Property reference

LED Arrangement

This property is of type Fixed list of ints and can be referenced with the variable name LED_Arrangement.

Controls the arrangement of the LEDs on the panel.


1D - Creates a straight line of LEDs

2D - Creates an X by Y Array of LEDs

3D - Creates an X by Y by Z Array of LEDs

LED Count

This property is of type Unsigned integer and can be referenced with the variable name LED_Count.

Total number of LEDs in the design

LED Columns

This property is of type Unsigned integer and can be referenced with the variable name LED_Cols.

Number of horizontal LEDs - X axis

Column Spacing

This property is of type Floating point and can be referenced with the variable name x_spacing.

X Spacing Between LEDs on the Panel

LED Rows

This property is of type Unsigned integer and can be referenced with the variable name LED_Rows.

Number of vertical LEDs - Y axis

Row Spacing

This property is of type Floating point and can be referenced with the variable name y_spacing.

Y Spacing Between LEDs on the Panel

Flip X

This property is of type True or false and can be referenced with the variable name FlipX.

Flips the X axis if the LEDs are wired from the right hand side of the display.

Flip Y

This property is of type True or false and can be referenced with the variable name FlipY.

Flips the Y axis if the LEDs are wired from the bottom side of the display.

Output Mode

This property is of type Fixed list of ints and can be referenced with the variable name Output_Mode.

Sets the output mode used to drive the data to the LEDs

Bit Banged Mode = Allows Any I/O Pin but may be slower

SPI Mode = Fixed SPI Peripheral Pins but may be faster - Note that the SPI MISO pin will not be available for general I/O

Data Pin

This property is of type Single digital pin and can be referenced with the variable name MOSI.

LED Data Pin - Connected to the Data In pin of the first WS8201 IC.

Clock Pin

This property is of type Single digital pin and can be referenced with the variable name CLK.

LED Clock Pin - Connected to the Clock In pin of the first WS8201 IC.

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