Difference between revisions of "Component: LED Array (LEDs)"

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==Component Source Code==
 
==Component Source Code==
 +
 +
Please click here to download the component source project: [https://www.flowcode.co.uk/wiki/componentsource/FC_Comp_Source_LED_Array_2dgi.fcfx FC_Comp_Source_LED_Array_2dgi.fcfx]
  
 
Please click here to view the component source code (Beta): [https://www.flowcode.co.uk/FlowchartView/?wfile=componentsource/FC_Comp_Source_LED_Array_2dgi.fcfx FC_Comp_Source_LED_Array_2dgi.fcfx]
 
Please click here to view the component source code (Beta): [https://www.flowcode.co.uk/FlowchartView/?wfile=componentsource/FC_Comp_Source_LED_Array_2dgi.fcfx FC_Comp_Source_LED_Array_2dgi.fcfx]
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−
''No detailed description exists yet for this component''
 
−
 
−
==Examples==
 
  
  
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 +
''No detailed description exists yet for this component''
  
 +
==Examples==
  
  
 +
Example program which uses the point graph macro and loops to create a knight rider effect using the LED array.
  
 +
{{Fcfile|LED_KnightRider_2D.fcfx|LED KnightRider}}
  
  
 +
Example program which reads an analogue value from an analogue input voltage and displays the reading in Binary on the LED array.
  
 +
{{Fcfile|LED_Count_2D.fcfx|LED Count}}
  
−
Each segment will require a current limiting resistor.
 
  
−
This LED Calculator tool is a good resource for calculating the correct LED series protection resistor.
+
LEDs can be wired either active high or active low. The LED Array components have a property allowing you to configure which LED type your using.
  
−
[https://www.digikey.co.uk/en/resources/conversion-calculators/conversion-calculator-led-series-resistor  LED Resistor Calculator Tool]
+
[[File:LED_Active.jpg]]
  
  
 +
An active high LED will light when the microcontroller pin is outputting a logic 1 and be off when the microcontroller pin is outputting a logic 0 or in input mode.
  
−
===Simple Counter===
 
  
−
This example counts up from 0 to 9 on the 7-segment display before wrapping back to 0 and starting again. When displaying odd numbers we light the decimal point segment.
+
An active low LED will light when the microcontroller pin is outputting a logic 0 and be off when the microcontroller pin is outputting a logic 1 or in input mode.
−
{{Fcfile|7Seg_Test.fcfx|7Segment Display Example}}
 
  
  
−
===Multiplexed Counter===
+
The series resistor can be on either side of the LED and acts to protect the LED from damage due to excess current. The value of resistor used can be changed based on the brightness of the LED and power consumption.
  
−
This next example counts up from 0 to 99 on two 7-segment displays before wrapping back to 0 and starting again. The two displays are driven using a technique called multiplexing. A timer interrupt is used to perform the multiplexing leaving our program free to perform other tasks. Each 7-segment display shares the same segment pin connections but has a unique common pin connection to allow each individual 7-segment display to display a unique value.
 
−
{{Fcfile|7Seg_Test2.fcfx|7Segment Multiplex}}
 
  
 +
This LED Calculator tool is a good resource for calculating the correct LED series protection resistor.
  
−
===Stop Watch===
+
[https://www.digikey.co.uk/en/resources/conversion-calculators/conversion-calculator-led-series-resistor  LED Resistor Calculator Tool]
−
 
 
−
This next example uses a timer interrupt to multiplex between the displays and a second timer interrupt to count the passing of time allowing for accurate timings. Using four single 7-seg components we create a timer capable of monitoring time from 0.0 to 999.9 seconds in multiples of 100ms. The second timer interrupt flags to the main when the count value has changed allowing the heavier calculations to extract the digits from the counter to be done outside of the high speed interrupt routine and therefore maintain accurate timing.
 
−
 
 
−
Switches connected to Port D allow for the timer to be started, stopped and reset.
 
−
{{Fcfile|7Seg_Test3.fcfx|7Segment Timer}}
 
−
 
 
−
 
 
−
===Segment Control===
 
−
 
 
−
This example shows a method to display custom characters on 7-segment displays and also allows for numeric values to be displayed.
 
−
 
 
−
{{Fcfile|7segCharDemo.fcfx|7Segment Character Demo}}
 
  
 
==Macro reference==
 
==Macro reference==
  
 +
===AllOff===
 
{| class="wikitable" style="width:60%; background-color:#FFFFFF;"
 
{| class="wikitable" style="width:60%; background-color:#FFFFFF;"
 
|-
 
|-
 
| width="10%" align="center" style="background-color:#D8C9D8;" align="center" | [[File:Fc9-comp-macro.png]]
 
| width="10%" align="center" style="background-color:#D8C9D8;" align="center" | [[File:Fc9-comp-macro.png]]
−
| width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''BarGraph'''
+
| width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''AllOff'''
−
|-
 
−
| colspan="2" | Turns on the first N elements of the array - for generating bar graph metes etc. 
 
 
|-
 
|-
 +
| colspan="2" | Turns off all elements 
 
|-
 
|-
−
| width="10%" align="center" | [[File:Fc9-u8-icon.png]] - BYTE
 
−
| width="90%" | Length
 
−
|-
 
−
| colspan="2" | How many items to light up. 
 
−
|-
 
−
| width="10%" align="center" style="border-top: 2px solid #000;" | [[File:Fc9-void-icon.png]] - VOID
 
−
| width="90%" style="border-top: 2px solid #000;" | ''Return''
 
−
|}
 
−
 
−
 
−
{| class="wikitable" style="width:60%; background-color:#FFFFFF;"
 
−
|-
 
−
| width="10%" align="center" style="background-color:#D8C9D8;" align="center" | [[File:Fc9-comp-macro.png]]
 
−
| width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''LEDOn'''
 
−
|-
 
−
| colspan="2" | Turn on the selected LED. 
 
−
|-
 
−
|-
 
−
| width="10%" align="center" | [[File:Fc9-u8-icon.png]] - BYTE
 
−
| width="90%" | Index
 
−
|-
 
−
| colspan="2" | Index of the LED to turn on. 
 
 
|-
 
|-
 
| width="10%" align="center" style="border-top: 2px solid #000;" | [[File:Fc9-void-icon.png]] - VOID
 
| width="10%" align="center" style="border-top: 2px solid #000;" | [[File:Fc9-void-icon.png]] - VOID
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 +
===AllOn===
 
{| class="wikitable" style="width:60%; background-color:#FFFFFF;"
 
{| class="wikitable" style="width:60%; background-color:#FFFFFF;"
 
|-
 
|-
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−
{| class="wikitable" style="width:60%; background-color:#FFFFFF;"
+
===BarGraph===
−
|-
 
−
| width="10%" align="center" style="background-color:#D8C9D8;" align="center" | [[File:Fc9-comp-macro.png]]
 
−
| width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''LEDOff'''
 
−
|-
 
−
| colspan="2" | Turn off the selected led. 
 
−
|-
 
−
|-
 
−
| width="10%" align="center" | [[File:Fc9-u8-icon.png]] - BYTE
 
−
| width="90%" | Index
 
−
|-
 
−
| colspan="2" | Index of the LED to turn on. 
 
−
|-
 
−
| width="10%" align="center" style="border-top: 2px solid #000;" | [[File:Fc9-void-icon.png]] - VOID
 
−
| width="90%" style="border-top: 2px solid #000;" | ''Return''
 
−
|}
 
−
 
 
−
 
 
−
{| class="wikitable" style="width:60%; background-color:#FFFFFF;"
 
−
|-
 
−
| width="10%" align="center" style="background-color:#D8C9D8;" align="center" | [[File:Fc9-comp-macro.png]]
 
−
| width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''PointGraph'''
 
−
|-
 
−
| colspan="2" | Turns on the Indexed LED and turns all others off. Does nothing if the index is out of range. 
 
−
|-
 
−
|-
 
−
| width="10%" align="center" | [[File:Fc9-u8-icon.png]] - BYTE
 
−
| width="90%" | Index
 
−
|-
 
−
| colspan="2" | The LED to show. 
 
−
|-
 
−
| width="10%" align="center" style="border-top: 2px solid #000;" | [[File:Fc9-void-icon.png]] - VOID
 
−
| width="90%" style="border-top: 2px solid #000;" | ''Return''
 
−
|}
 
−
 
 
−
 
 
−
{| class="wikitable" style="width:60%; background-color:#FFFFFF;"
 
−
|-
 
−
| width="10%" align="center" style="background-color:#D8C9D8;" align="center" | [[File:Fc9-comp-macro.png]]
 
−
| width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''WriteValue'''
 
−
|-
 
−
| colspan="2" | Write a number which is presented on the LEDs in binary. 
 
−
|-
 
−
|-
 
−
| width="10%" align="center" | [[File:Fc9-u8-icon.png]] - BYTE
 
−
| width="90%" | Value
 
−
|-
 
−
| colspan="2" | Provide a value to be written to the LEDs in binary 
 
−
|-
 
−
| width="10%" align="center" style="border-top: 2px solid #000;" | [[File:Fc9-void-icon.png]] - VOID
 
−
| width="90%" style="border-top: 2px solid #000;" | ''Return''
 
−
|}
 
−
 
 
−
 
 
−
{| class="wikitable" style="width:60%; background-color:#FFFFFF;"
 
−
|-
 
−
| width="10%" align="center" style="background-color:#D8C9D8;" align="center" | [[File:Fc9-comp-macro.png]]
 
−
| width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''AllOff'''
 
−
|-
 
−
| colspan="2" | Turns off all elements 
 
−
|-
 
−
|-
 
−
| width="10%" align="center" style="border-top: 2px solid #000;" | [[File:Fc9-void-icon.png]] - VOID
 
−
| width="90%" style="border-top: 2px solid #000;" | ''Return''
 
−
|}
 
−
 
 
−
 
 
−
 
 
−
 
 
−
==Property reference==
 
−
 
 
−
{| class="wikitable" style="width:60%; background-color:#FFFFFF;"
 
−
|-
 
−
| width="10%" align="center" style="background-color:#D8C9D8;" | [[File:Fc9-prop-icon.png]]
 
−
| width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''Properties'''
 
−
|-
 
−
|-
 
−
| width="10%" align="center" | [[File:Fc9-type-16-icon.png]]
 
−
| width="90%" | Count
 
−
|-
 
−
| colspan="2" | The number of LEDs in the array from 1 to 8. 
 
−
|-
 
−
| width="10%" align="center" style="background-color:#EAE1EA;" | [[File:Fc9-conn-icon.png]]
 
−
| width="90%" style="background-color:#EAE1EA; color:#4B008D;" | Connections
 
−
|-
 
−
|-
 
−
| width="10%" align="center" | [[File:Fc9-type-16-icon.png]]
 
−
| width="90%" | Output Mode
 
−
|-
 
−
| colspan="2" |  
 
−
|-
 
−
| width="10%" align="center" | [[File:Fc9-type-19-icon.png]]
 
−
| width="90%" | Port
 
−
|-
 
−
| colspan="2" |  
 
−
|-
 
−
| width="10%" align="center" | [[File:Fc9-type-16-icon.png]]
 
−
| width="90%" | Polarity
 
−
|-
 
−
| colspan="2" |  
 
−
|-
 
−
| width="10%" align="center" style="background-color:#EAE1EA;" | [[File:Fc9-conn-icon.png]]
 
−
| width="90%" style="background-color:#EAE1EA; color:#4B008D;" | Simulation
 
−
|-
 
−
|-
 
−
| width="10%" align="center" | [[File:Fc9-type-16-icon.png]]
 
−
| width="90%" | Switch layout
 
−
|-
 
−
| colspan="2" |  
 
−
|-
 
−
| width="10%" align="center" | [[File:Fc9-type-21-icon.png]]
 
−
| width="90%" | Distance between LEDs
 
−
|-
 
−
| colspan="2" |  
 
−
|-
 
−
| width="10%" align="center" | [[File:Fc9-type-2-icon.png]]
 
−
| width="90%" | Label colour
 
−
|-
 
−
| colspan="2" |  
 
−
|-
 
−
| width="10%" align="center" | [[File:Fc9-type-16-icon.png]]
 
−
| width="90%" | Component Label
 
−
|-
 
−
| colspan="2" |  
 
−
|-
 
−
| width="10%" align="center" | [[File:Fc9-type-7-icon.png]]
 
−
| width="90%" | Show Connection Label
 
−
|-
 
−
| colspan="2" | If enabled, the pin designation will be shown, e.g. B0. 
 
−
|-
 
−
| width="10%" align="center" | [[File:Fc9-type-7-icon.png]]
 
−
| width="90%" | Show Pin Value
 
−
|-
 
−
| colspan="2" | Pin status of VCC or GND will be shown when enabled and simualtion is running. 
 
−
|-
 
−
| width="10%" align="center" style="background-color:#EAE1EA;" | [[File:Fc9-conn-icon.png]]
 
−
| width="90%" style="background-color:#EAE1EA; color:#4B008D;" | Appearance
 
−
|-
 
−
|-
 
−
| width="10%" align="center" | [[File:Fc9-type-16-icon.png]]
 
−
| width="90%" | Shape
 
−
|-
 
−
| colspan="2" |  
 
−
|-
 
−
| width="10%" align="center" | [[File:Fc9-type-16-icon.png]]
 
−
| width="90%" | Colour
 
−
|-
 
−
| colspan="2" |  
 
−
|-
 
−
| width="10%" align="center" | [[File:Fc9-type-16-icon.png]]
 
−
| width="90%" | Style
 
−
|-
 
−
| colspan="2" |  
 
−
|}==Macro reference==
 
−
 
 
 
{| class="wikitable" style="width:60%; background-color:#FFFFFF;"
 
{| class="wikitable" style="width:60%; background-color:#FFFFFF;"
 
|-
 
|-
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 +
===LEDOff===
 
{| class="wikitable" style="width:60%; background-color:#FFFFFF;"
 
{| class="wikitable" style="width:60%; background-color:#FFFFFF;"
 
|-
 
|-
 
| width="10%" align="center" style="background-color:#D8C9D8;" align="center" | [[File:Fc9-comp-macro.png]]
 
| width="10%" align="center" style="background-color:#D8C9D8;" align="center" | [[File:Fc9-comp-macro.png]]
−
| width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''LEDOn'''
+
| width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''LEDOff'''
 
|-
 
|-
−
| colspan="2" | Turn on the selected LED. 
+
| colspan="2" | Turn off the selected led. 
 
|-
 
|-
 
|-
 
|-
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 +
===LEDOn===
 
{| class="wikitable" style="width:60%; background-color:#FFFFFF;"
 
{| class="wikitable" style="width:60%; background-color:#FFFFFF;"
 
|-
 
|-
 
| width="10%" align="center" style="background-color:#D8C9D8;" align="center" | [[File:Fc9-comp-macro.png]]
 
| width="10%" align="center" style="background-color:#D8C9D8;" align="center" | [[File:Fc9-comp-macro.png]]
−
| width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''AllOn'''
+
| width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''LEDOn'''
 
|-
 
|-
−
| colspan="2" | Turns on all elements 
+
| colspan="2" | Turn on the selected LED. 
−
|-
 
−
|-
 
−
| width="10%" align="center" style="border-top: 2px solid #000;" | [[File:Fc9-void-icon.png]] - VOID
 
−
| width="90%" style="border-top: 2px solid #000;" | ''Return''
 
−
|}
 
−
 
 
−
 
 
−
{| class="wikitable" style="width:60%; background-color:#FFFFFF;"
 
−
|-
 
−
| width="10%" align="center" style="background-color:#D8C9D8;" align="center" | [[File:Fc9-comp-macro.png]]
 
−
| width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''LEDOff'''
 
−
|-
 
−
| colspan="2" | Turn off the selected led. 
 
 
|-
 
|-
 
|-
 
|-
Line 357: Line 161:
  
  
 +
===PointGraph===
 
{| class="wikitable" style="width:60%; background-color:#FFFFFF;"
 
{| class="wikitable" style="width:60%; background-color:#FFFFFF;"
 
|-
 
|-
Line 375: Line 180:
  
  
 +
===WriteValue===
 
{| class="wikitable" style="width:60%; background-color:#FFFFFF;"
 
{| class="wikitable" style="width:60%; background-color:#FFFFFF;"
 
|-
 
|-
Line 391: Line 197:
 
| width="90%" style="border-top: 2px solid #000;" | ''Return''
 
| width="90%" style="border-top: 2px solid #000;" | ''Return''
 
|}
 
|}
−
 
−
 
−
{| class="wikitable" style="width:60%; background-color:#FFFFFF;"
 
−
|-
 
−
| width="10%" align="center" style="background-color:#D8C9D8;" align="center" | [[File:Fc9-comp-macro.png]]
 
−
| width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''AllOff'''
 
−
|-
 
−
| colspan="2" | Turns off all elements 
 
−
|-
 
−
|-
 
−
| width="10%" align="center" style="border-top: 2px solid #000;" | [[File:Fc9-void-icon.png]] - VOID
 
−
| width="90%" style="border-top: 2px solid #000;" | ''Return''
 
−
|}
 
−
 
−
 
  
  

Latest revision as of 07:38, 24 September 2024

Author Matrix TSL
Version 1.0
Category LEDs


LED Array component

An array of LED indicators equally spaced and complete with labels to indicate their meaning. Embedded can be used to control an 8-bit port or up to 8 individual pins.

Component Source Code

Please click here to download the component source project: FC_Comp_Source_LED_Array_2dgi.fcfx

Please click here to view the component source code (Beta): FC_Comp_Source_LED_Array_2dgi.fcfx

Detailed description

No detailed description exists yet for this component

Examples

Example program which uses the point graph macro and loops to create a knight rider effect using the LED array.

FC6 Icon.png LED KnightRider


Example program which reads an analogue value from an analogue input voltage and displays the reading in Binary on the LED array.

FC6 Icon.png LED Count


LEDs can be wired either active high or active low. The LED Array components have a property allowing you to configure which LED type your using.

LED Active.jpg


An active high LED will light when the microcontroller pin is outputting a logic 1 and be off when the microcontroller pin is outputting a logic 0 or in input mode.


An active low LED will light when the microcontroller pin is outputting a logic 0 and be off when the microcontroller pin is outputting a logic 1 or in input mode.


The series resistor can be on either side of the LED and acts to protect the LED from damage due to excess current. The value of resistor used can be changed based on the brightness of the LED and power consumption.


This LED Calculator tool is a good resource for calculating the correct LED series protection resistor.

LED Resistor Calculator Tool

Macro reference

AllOff

Fc9-comp-macro.png AllOff
Turns off all elements 
Fc9-void-icon.png - VOID Return


AllOn

Fc9-comp-macro.png AllOn
Turns on all elements 
Fc9-void-icon.png - VOID Return


BarGraph

Fc9-comp-macro.png BarGraph
Turns on the first N elements of the array - for generating bar graph metes etc. 
Fc9-u8-icon.png - BYTE Length
How many items to light up. 
Fc9-void-icon.png - VOID Return


LEDOff

Fc9-comp-macro.png LEDOff
Turn off the selected led. 
Fc9-u8-icon.png - BYTE Index
Index of the LED to turn on. 
Fc9-void-icon.png - VOID Return


LEDOn

Fc9-comp-macro.png LEDOn
Turn on the selected LED. 
Fc9-u8-icon.png - BYTE Index
Index of the LED to turn on. 
Fc9-void-icon.png - VOID Return


PointGraph

Fc9-comp-macro.png PointGraph
Turns on the Indexed LED and turns all others off. Does nothing if the index is out of range. 
Fc9-u8-icon.png - BYTE Index
The LED to show. 
Fc9-void-icon.png - VOID Return


WriteValue

Fc9-comp-macro.png WriteValue
Write a number which is presented on the LEDs in binary. 
Fc9-u8-icon.png - BYTE Value
Provide a value to be written to the LEDs in binary 
Fc9-void-icon.png - VOID Return


Property reference

Fc9-prop-icon.png Properties
Fc9-type-16-icon.png Count
The number of LEDs in the array from 1 to 8. 
Fc9-conn-icon.png Connections
Fc9-type-16-icon.png Output Mode
 
Fc9-type-19-icon.png Port
 
Fc9-type-16-icon.png Polarity
 
Fc9-conn-icon.png Simulation
Fc9-type-16-icon.png Switch layout
 
Fc9-type-21-icon.png Distance between LEDs
 
Fc9-type-2-icon.png Label colour
 
Fc9-type-16-icon.png Component Label
 
Fc9-type-7-icon.png Show Connection Label
If enabled, the pin designation will be shown, e.g. B0. 
Fc9-type-7-icon.png Show Pin Value
Pin status of VCC or GND will be shown when enabled and simualtion is running. 
Fc9-conn-icon.png Appearance
Fc9-type-16-icon.png Shape
 
Fc9-type-16-icon.png Colour
 
Fc9-type-16-icon.png Style
 
Retrieved from "https://www.flowcode.co.uk/wiki/index.php?title=Component:_LED_Array_(LEDs)&oldid=41179"