Component: Photo Transistor (Sensors)
| Author | Matrix Ltd |
| Version | 1.0 (Release) |
| Category | Sensors |
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.
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
Downloadable macro reference
SampleSensor
Samples the sensor and automatically controls the emitter pin if enabled.
Returns the state of the sensor pin.
Parameters
- This macro has no parameters
Return value
Initialise
Configures the I/O ready for the sensor to be sampled.
Parameters
- This macro has no parameters
Return value
- This call does not return a value
Simulation macro reference
This component does not contain any simulation macros
Property reference
Emitter Type
This property is of type Fixed list of ints and can be referenced with the variable name EmitterType.
Decides if the emitter needs to be switched on and off during sampling
Sense Pin
This property is of type Single digital pin and can be referenced with the variable name SensePin.
Pin connected to the sensor element of the photo transistor
Sensor Range
This property is of type Unsigned integer and can be referenced with the variable name SensorRange.
Simulation range used to determine if the sense pin is active or not.
