Difference between revisions of "Component: Photo Transistor (Light)"
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Uses InfraRed light to detect if an external object is near to the sensor. Returns a digital signal which can represent detected or not detected states. Useful for applications like line following, punched card based data systems and robotics. | Uses InfraRed light to detect if an external object is near to the sensor. Returns a digital signal which can represent detected or not detected states. Useful for applications like line following, punched card based data systems and robotics. | ||
| − | == | + | ==Detailed description== |
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==Examples== | ==Examples== | ||
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{{Fcfile|PhotoTransistorDemo.fcfx|PhotoTransistorDemo}} | {{Fcfile|PhotoTransistorDemo.fcfx|PhotoTransistorDemo}} | ||
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| + | ==Macro reference== | ||
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| + | ===Initialise=== | ||
{| class="wikitable" style="width:60%; background-color:#FFFFFF;" | {| class="wikitable" style="width:60%; background-color:#FFFFFF;" | ||
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| 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;" | ''' | + | | width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''Initialise''' |
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| − | | colspan="2" | | + | | colspan="2" | Configures the I/O ready for the sensor to be sampled. |
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| − | | width="10%" align="center" style="border-top: 2px solid #000;" | [[File:Fc9- | + | | 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'' | | width="90%" style="border-top: 2px solid #000;" | ''Return'' | ||
|} | |} | ||
| + | ===SampleSensor=== | ||
{| class="wikitable" style="width:60%; background-color:#FFFFFF;" | {| class="wikitable" style="width:60%; background-color:#FFFFFF;" | ||
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| 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;" | ''' | + | | width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''SampleSensor''' |
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| − | | colspan="2" | | + | | colspan="2" | Samples the sensor and automatically controls the emitter pin if enabled. Returns the state of the sensor pin. |
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| − | | width="10%" align="center" style="border-top: 2px solid #000;" | [[File:Fc9- | + | | width="10%" align="center" style="border-top: 2px solid #000;" | [[File:Fc9-u8-icon.png]] - BYTE |
| width="90%" style="border-top: 2px solid #000;" | ''Return'' | | width="90%" style="border-top: 2px solid #000;" | ''Return'' | ||
|} | |} | ||
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| colspan="2" | Simulation range used to determine if the sense pin is active or not. | | colspan="2" | Simulation range used to determine if the sense pin is active or not. | ||
|} | |} | ||
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| + | ==Component Source Code== | ||
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| + | Please click here to download the component source project: [https://www.flowcode.co.uk/wiki/componentsource/FC_Comp_Source_PhotoTransistor.fcfx FC_Comp_Source_PhotoTransistor.fcfx] | ||
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| + | Please click here to view the component source code (Beta): [https://www.flowcode.co.uk/FlowchartView/?wfile=componentsource/FC_Comp_Source_PhotoTransistor.fcfx FC_Comp_Source_PhotoTransistor.fcfx] | ||
Latest revision as of 14:13, 22 October 2025
| Author | Matrix Ltd |
| Version | 1.0 |
| Category | Light |
Contents
Photo Transistor component
Uses InfraRed light to detect if an external object is near to the sensor. Returns a digital signal which can represent detected or not detected states. Useful for applications like line following, punched card based data systems and robotics.
Detailed description
No detailed description exists yet for this component
Examples
A basic example which moves an object on the panel. When the object is in range of the sensor the sensor output goes high, otherwise the sensor output goes low.
PhotoTransistorDemo
Macro reference
Initialise
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Initialise |
| Configures the I/O ready for the sensor to be sampled. | |
 - VOID
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Return |
SampleSensor
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SampleSensor |
| Samples the sensor and automatically controls the emitter pin if enabled. Returns the state of the sensor pin. | |
 - BYTE
|
Return |
Property reference
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Properties |
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Emitter Type |
| Decides if the emitter needs to be switched on and off during sampling | |
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Connections |
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Sense Pin |
| Pin connected to the sensor element of the photo transistor | |
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Simulation |
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Sensor Range |
| Simulation range used to determine if the sense pin is active or not. | |
Component Source Code
Please click here to download the component source project: FC_Comp_Source_PhotoTransistor.fcfx
Please click here to view the component source code (Beta): FC_Comp_Source_PhotoTransistor.fcfx
