Difference between revisions of "Exercise - Using Component Macros"
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They take all the effort out of using these components. | They take all the effort out of using these components. | ||
This exercise uses them to control a particularly complicated, but very common device, the Liquid Crystal Display (LCD). | This exercise uses them to control a particularly complicated, but very common device, the Liquid Crystal Display (LCD). | ||
| − | It uses it to display the elapsed time | + | It uses it to display the elapsed time. |
__TOC__ | __TOC__ | ||
| − | == | + | ==The core sequence== |
| − | The flowchart sequence will be: | + | The flowchart sequence for the elapsed time will be: |
: Check if the switch is pressed. | : Check if the switch is pressed. | ||
:: If it isn't, go back to the beginning. | :: If it isn't, go back to the beginning. | ||
:: If it is: | :: If it is: | ||
| − | ::: | + | ::: initialize the LCD; |
| − | ::: | + | ::: display the text "Elapsed time"; |
| − | ::: | + | ::: initialize the time; |
| − | ::: | + | ::: display the time |
| − | + | ::: wait for one second; | |
| − | + | ::: increment the time; | |
| + | ::: display the new time; | ||
| + | ::: loop back and repeat this process. | ||
Revision as of 14:43, 20 June 2013
Component macros are sections of code that have been written to support the components included with Flowcode 6.
They take all the effort out of using these components.
This exercise uses them to control a particularly complicated, but very common device, the Liquid Crystal Display (LCD).
It uses it to display the elapsed time.
The core sequence
The flowchart sequence for the elapsed time will be:
- Check if the switch is pressed.
- If it isn't, go back to the beginning.
- If it is:
- initialize the LCD;
- display the text "Elapsed time";
- initialize the time;
- display the time
- wait for one second;
- increment the time;
- display the new time;
- loop back and repeat this process.
Set up the flowchart
The program 'knows' when you have added a component to the System or Dashboard panel.
