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| Simulation macros are a form of Component macros. Their purpose is to make simulation more realistic by adding physical components to the electronic devices.
| | For an excellent introduction guide, we recommend [https://www.flowcode.co.uk/education/ Introduction to microcontroller programming] |
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| When the Flowcode program is compiled and downloaded to a microcontroller, they are ignored - hence the name Simulation macros.
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| Even a cursory glance at the dialogue box used to configure them shows that they are very powerful devices, with a huge range of possible effects.
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| This exercise uses two of them to illustrate the use of a PIR (passive infra-red sensor) to operate an intruder sensor.
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| __TOC__
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| ==The scenario==
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| The scene depicts the front of a house.
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| [[File:Exercise SimIcon pan.png|center|350px]] | |
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| A PIR sensor is mounted on the wall of the house, above the path leading across the garden.
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| The data sheet for the PIR shows that it is sensitive to a range of 10 metres, within a cone of angle 100 degrees.
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| Its detection area is represented by the pale blue cone.
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| When an intruder enters the detection cone, a warning lamp lights up in the house.
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| ==The physical bits==
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| With the System Panel visible, and viewed from above (the default position,)on it create:
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| * '''a brick wall''', represented by adding a red cuboid and changing it to a rectangle, 15mm wide, 120mm high and 120mm deep,
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| :: located at coordinates x = 0, y = 0, z = 60,
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| :: with rotation settings X = 0, Y = 0, Z = 0;
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| * '''a path''', represented by a grey rectangle, 240mm wide, 100mm high and 0mm deep,
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| :: located at coordinatesx = 125mm, y = 0mm, z = 0mm,
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| :: with rotation settings of X = 0, Y = 0, Z = 0;
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| * '''a cone''', couloured light blue, representing the sensing region of the PIR, with width = 70mm, height = 250mm, depth 95mm,
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| :: located at coordinates x = 45mm, y = 0mm, z = 80mm,
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| :: with rotation settings of X = 0, Y = -55, Z = 0.
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| * Drag the mouse cursor over these three elements and group them together. This produces 'group 1'.
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| :: Give it:
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| ::: dimensions - width = 265mm, height = 250mm, depth = 135mm;
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| ::: coordinates - x = 128, y = 0, z = 68;
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| ::: rotation - X = 0, Y = 0, Z = 0.
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| Also on the System Panel, create an intruder, by:
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| * adding four spheres, and configuruing the properties as follows:
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| :: sphere 1 ('''the head'''):
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| ::: colour pink;
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| ::: dimensions - width = 12mm, height = 13mm, depth = 15mm;
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| ::: coordinates - x = -2.2, y = 0.7, z = 22;
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| ::: rotation - X = 90, Y = 0, Z = 0.
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| :: sphere 2 ('''the body'''):
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| ::: colour blue;
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| ::: dimensions - width = 14mm, height = 26mm, depth = 24mm;
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| ::: coordinates - x = -2.2, y = 0.5, z = 4;
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| ::: rotation - X = 90, Y = 0, Z = -180.
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| :: sphere 3 ('''the legs'''):
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| ::: colour dark green;
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| ::: dimensions - width = 9mm, height = 23mm, depth = 15mm;
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| ::: coordinates - x = -2.2, y = 1, z = -16;
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| ::: rotation - X = 90, Y = 0, Z = -180.
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| :: sphere 4 ('''the feet'''):
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| ::: colour black;
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| ::: dimensions - width = 6mm, height = 15mm, depth = 25mm;
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| ::: coordinates - x = -6, y = 0, z = -25;
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| ::: rotation - X = 90, Y = 90, Z = 0.
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| * Drag the mouse cursor over the four spheres and group them together.This produces 'group 2'.
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| :: Give it:
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| ::: dimensions - width = 18mm, height = 32mm, depth = 60mm;
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| ::: coordinates - x = 165, y = 0, z = 28;
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| ::: rotation - X = 0, Y = 0, Z = 0.
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| The System Panel should resemble the image shown above. (The image has been rotated to show all components. The table-top is coloured green.)
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| ==The Flowcode program==
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| * [[Opening Flowcode|Open Flowcode]].
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| * On the Startup screen, click on 'New project' to [[Creating Flowcharts|create a new flowchart]].
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| * Add the icons shown in the flowchart:
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| :* a loop icon, configured as an infinite loop, and within it:
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| ::* two Simulation macro icons [[File:Btn Simulation Macro.gif|35px]];
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| ::* a decision icon with:
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| :::* a 'Yes' loop containing an output icon, followed by a delay icon and then a calculation icon;
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| :::* a 'No' loop containing an output icon, followed by a delay icon and then a calculation icon;
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| [[File:Exercise SimIcon Sim move.png|right|350px]]
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| * Configure the icons, by double clicking on each in turn, as follows:
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| ::* the top Simulation macro:
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| :::* click on the 'Panel' tab, and then on the 'Position' folder;
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| :::* click on the 'MoveAlong' macro and:
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| ::::* choose 'group2' as the Handle;
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| ::::* choose 'shape1' as the Axis;
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| [[File:Exercise SimIcon Sim prog.png|right|350px]]
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| ::::: var1 = 2, add = 3;
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| ::* a Code icon [[File:Btn C Code.gif|border]]- details given below;
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| ::* a delay icon configured to give a two second delay.
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| use it to create two byte variables, 'var1' and 'add',
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| File:Exercise SimIcon Sim test.png
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| * Flowcode
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| * Experienced
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| * Students
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| ==Adding supplementary code==
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| This feature
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| '''Definitions and function declarations:'''
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| This is
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| '''Function implementations:'''
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