Tutorials/VEX LCD Characters - Revision history

Bfeher at 18:38, 7 May 2012

2012-05-07T18:38:04Z

Bfeher at 18:37, 7 May 2012

2012-05-07T18:37:43Z

Bfeher at 14:57, 7 May 2012

2012-05-07T14:57:43Z

Bfeher: moved VEX LCD Characters to Tutorials/VEX LCD Characters

2012-05-07T14:56:01Z

moved VEX LCD Characters to Tutorials/VEX LCD Characters

Bfeher at 19:38, 4 May 2012

2012-05-04T19:38:59Z

Bfeher at 19:35, 4 May 2012

2012-05-04T19:35:22Z

Bfeher: Created page with "Tutorials|Tutorials
{| width="740px" |- |VEX LCD |style="vertical-al..."

2012-05-04T19:33:52Z

Created page with "<yambe:breadcrumb self="VEX LCD Characters">Tutorials|Tutorials</yambe:breadcrumb> {| width="740px" |- |VEX LCD |style="vertical-al..."

New page

<yambe:breadcrumb self="VEX LCD Characters">Tutorials|Tutorials</yambe:breadcrumb>
 

{| width="740px"
|-
|[[Image:Tut-vexLCD.jpg|left|thumb|VEX LCD]]
|style="vertical-align: top;"|Full credit for the work behind this post goes to ROBOTC user Matthieu V. Thanks Matthieu!

The [http://www.robotc.net/blog/2010/12/21/using-the-vex-lcd-screen-and-robotc-remote-screen-part-1/ VEX LCD] is a fantastic tool, allowing you to display messages and values on the robot with very little effort. Some programmers even use a combination of the screen and input buttons to create a basic user interface on their robots – allowing them to choose between multiple autonomous routines, [http://www.robotc.net/blog/2011/03/16/cortex-view-mode-program/ choose a specific sensor and display its values], and more.

What many programmers don’t know, is that there’s a wider selection of symbols that can be displayed with the LCD! Shown below is a full list of characters that can be displayed, along with their numerical equivalents, in a useful table Matthieu put together.
|-
|Full character look-up table: 

[[Image:vex-lcd-table.png|VEX LCD character set]]

You can download a printable PDF of the table, along with some additional notes, [[File:VexLCDcharList.pdf|here]].
|}
 

To display any of these custom characters, you should use either the displayLCDChar(); or displayNextLCDChar(); commands as you normally would, but specify the numerical value instead of an actual character in single quotes. For example, the following code will display a right arrow on the very first position (0,0) on the LCD:
 
<syntaxhighlight lang="ROBOTC">
task main()
{
//Create and initialize variable x
//Value stored in x must be between 16 and 255
int x = 199;

//Clear Line 0
clearLCDLine(0);

//Display the character associated with the value in x
displayLCDChar(0, 0, x);

//Wait 5 seconds before the program ends, clearing the screen
wait1Msec(5000);
}
</syntaxhighlight>

← Older revision		Revision as of 18:38, 7 May 2012
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	[[Image:vex-lcd-table.png\|VEX LCD character set]]		[[Image:vex-lcd-table.png\|VEX LCD character set]]

−	You can download a printable PDF of the table, along with some additional notes, [[Media:VexLCDcharList.pdf]].	+	You can download a printable PDF of the table, along with some additional notes, [[Media:VexLCDcharList.pdf\|VexLCDcharList.pdf]].

← Older revision		Revision as of 18:37, 7 May 2012
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	[[Image:vex-lcd-table.png\|VEX LCD character set]]		[[Image:vex-lcd-table.png\|VEX LCD character set]]

−	You can download a printable PDF of the table, along with some additional notes, [[~~File~~:VexLCDcharList.pdf]].	+	You can download a printable PDF of the table, along with some additional notes, [[Media:VexLCDcharList.pdf]].

← Older revision		Revision as of 14:57, 7 May 2012
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	<yambe:breadcrumb self="VEX LCD Characters">Tutorials\|Tutorials</yambe:breadcrumb>		<yambe:breadcrumb self="VEX LCD Characters">Tutorials\|Tutorials</yambe:breadcrumb>
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← Older revision		Revision as of 19:38, 4 May 2012
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	[[Image:vex-lcd-table.png\|VEX LCD character set]]		[[Image:vex-lcd-table.png\|VEX LCD character set]]

−	You can download a printable PDF of the table, along with some additional notes, [[File:VexLCDcharList.pdf~~\|here~~]].	+	You can download a printable PDF of the table, along with some additional notes, [[File:VexLCDcharList.pdf]].

@@ Line 10: / Line 10: @@
 What many programmers don’t know, is that there’s a wider selection of symbols that can be displayed with the LCD! Shown below is a full list of characters that can be displayed, along with their numerical equivalents, in a useful table Matthieu put together.
-|-
+|}
-|Full character look-up table:<br />
+<br />
 [[Image:vex-lcd-table.png|VEX LCD character set]]
 You can download a printable PDF of the table, along with some additional notes, [[File:VexLCDcharList.pdf|here]].
-|}
-<br />
 To display any of these custom characters, you should use either the <span class="keywordB">displayLCDChar</span><span class="codePunc">();</span> or <span class="keywordB">displayNextLCDChar</span><span class="codePunc">();</span> commands as you normally would, but specify the numerical value instead of an actual character in single quotes. For example, the following code will display a right arrow on the very first position (0,0) on the LCD: