MeggyJrDemo - Revision history

BillyBuggy at 04:37, 17 March 2009

2009-03-17T04:37:56Z

← Older revision		Revision as of 21:37, 16 March 2009
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	===== Introduction =====		===== Introduction =====
	I built a [http://www.evilmadscientist.com/article.php/meggyjr Meggy Jr RGB]		In January 2009 I built a
	kit designed by Windell Oskay (Evil Mad Scientists Laboratory).		[http://www.evilmadscientist.com/article.php/meggyjr Meggy Jr RGB]
			kit designed by Windell Oskay (of Evil Mad Scientists Laboratory).
	===== Standard Arduino main program: =====		===== Standard Arduino main program: =====
	<pre>		<pre>
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	}		}
	</pre>		</pre>
	===== Simplified Meggy API (~~part~~): =====		===== Simplified Meggy API (partial): =====
	<pre>		<pre>
	#include <MeggyJrSimple.h>		#include <MeggyJrSimple.h>

	EmptyScreen(); Turn off all ~~LED~~		EmptyScreen(); Turn off all LEDs

	DrawPx(x,y,color); Turn on LED (x=0~7, y=0~7, color=0~15)		DrawPx(x,y,color); Turn on LED (x=0~7, y=0~7, color=0~15)
	( x=0,y=0 is lower left )		( x=0,y=0 is lower left )

	ShowScreen(); Copy buffer array to display video array		ShowScreen(); Copy (double) buffer array to display
			video array

	SetAuxLEDs(N); Set top LEDs: N=1:FarLeft, N=255:AllOn		SetAuxLEDs(N); Set top LEDs: N=1:FarLeft, N=255:AllOn
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	===== Regular Arduino calls still available: =====		===== Regular Arduino calls still available: =====
	<pre>		<pre>
	delay(N); Delay N msec.		delay(N); Delay execution N msec.
	millis(); ~~Current~~ time in msec.		millis(); Return current time in msec.
	random(X); ~~Random~~ number in [0,X)		random(X); Return random number in [0,X)
	</pre>		</pre>

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	</pre>		</pre>

	===== ~~Looping with~~ delay() =====		===== Simple looping using function delay() =====
	<pre>		<pre>
	void setup() {		void setup() {
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	</pre>		</pre>

	===== ~~Program looping~~ over frames w/o delay() =====		===== Same loop over frames, w/o using function delay() =====
	<pre>		<pre>
	unsigned long gLastTime;		unsigned long gLastTime;

BillyBuggy at 22:50, 16 March 2009

2009-03-16T22:50:45Z

← Older revision		Revision as of 15:50, 16 March 2009
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	SetAuxLEDs(N); Set top LEDs: N=1:FarLeft, N=255:AllOn		SetAuxLEDs(N); Set top LEDs: N=1:FarLeft, N=255:AllOn

	CheckButtonsDown() Check which buttons currently pressed.		CheckButtonsDown(); Check which buttons currently pressed.
	Sets six (global) variables:		Sets six (global) variables:
	Button_A, Button_B, Button_Up,		Button_A, Button_B, Button_Up,

BillyBuggy at 22:46, 16 March 2009

2009-03-16T22:46:57Z

← Older revision		Revision as of 15:46, 16 March 2009
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	===== Simplified Meggy API (part): =====		===== Simplified Meggy API (part): =====
	<pre>		<pre>
	#include <MeggyJrSimple.h>		#include <MeggyJrSimple.h>

	EmptyScreen(); Turn off all LED		EmptyScreen(); Turn off all LED

	DrawPx(x,y,color); Turn on LED (x=0~7, y=0~7, color=0~15)		DrawPx(x,y,color); Turn on LED (x=0~7, y=0~7, color=0~15)
	( x=0,y=0 is lower left )		( x=0,y=0 is lower left )

	ShowScreen(); Copy buffer array to display video array		ShowScreen(); Copy buffer array to display video array

	SetAuxLEDs(N); Set top LEDs: N=1:FarLeft, N=255:AllOn		SetAuxLEDs(N); Set top LEDs: N=1:FarLeft, N=255:AllOn

	CheckButtonsDown() Check which buttons currently pressed.		CheckButtonsDown() Check which buttons currently pressed.
	Sets six (global) variables:		Sets six (global) variables:
	Button_A, Button_B, Button_Up,		Button_A, Button_B, Button_Up,
	Button_Down, Button_Left, Button_Right		Button_Down, Button_Left, Button_Right
	if (Button_Left \|\| Button_Up ) ...		if (Button_Left \|\| Button_Up ) ...
	</pre>		</pre>

	===== Regular Arduino calls still available: =====		===== Regular Arduino calls still available: =====
	<pre>		<pre>
	delay(N); Delay N msec.		delay(N); Delay N msec.
	~~long~~ millis(); Current time in msec.		millis(); Current time in msec.
	random(X); Random number in [0,X)		random(X); Random number in [0,X)
	</pre>		</pre>

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	===== Program looping over frames w/o delay() =====		===== Program looping over frames w/o delay() =====
	<pre>		<pre>
	unsigned long gLastTime;		unsigned long gLastTime;
	byte gWhichDelay;		byte gWhichDelay;
	int gDelayMsec;		int gDelayMsec;
	void setup() {		void setup() {
	MeggyJrSimpleSetup();		MeggyJrSimpleSetup();
	gLastTime = millis();		gLastTime = millis();
	gWhichDelay = 2; // Waiting at: =1: first delay(),		gWhichDelay = 2; // Waiting at: =1: first delay(),
	// =2: second delay()		// =2: second delay()
	gDelayMsec = 500;		gDelayMsec = 500;
	}		}
	void loop() {		void loop() {
	if ( millis() > gLastTime + gDelayMsec ) {		if ( millis() > gLastTime + gDelayMsec ) {
	if ( gWhichDelay == 1 ) {		if ( gWhichDelay == 1 ) {
	DrawPx(7, 7, Dark);		DrawPx(7, 7, Dark);
	ShowScreen();		ShowScreen();
	gDelayMsec = 500;		gDelayMsec = 500;
	gWhichDelay = 2;		gWhichDelay = 2;
	}		}
	else {		else {
	DrawPx(7, 7, FullOn);		DrawPx(7, 7, FullOn);
	ShowScreen();		ShowScreen();
	gDelayMsec = 100;		gDelayMsec = 100;
	gWhichDelay = 1;		gWhichDelay = 1;
	}
	~~gLastTime = millis()~~;
	}		}
			gLastTime = millis();
	}		}
			}
	</pre>		</pre>
	===== References =====		===== References =====
	* [http://www.evilmadscientist.com/article.php/meggyjr Meggy Jr Product Description -- http://www.evilmadscientist.com/article.php/meggyjr]		* [http://www.evilmadscientist.com/article.php/meggyjr Meggy Jr Product Description -- http://www.evilmadscientist.com/article.php/meggyjr]

BillyBuggy: New page: ===== Introduction ===== I built a [http://www.evilmadscientist.com/article.php/meggyjr Meggy Jr RGB] kit designed by Windell Oskay (Evil Mad Scientists Laboratory). ===== Standard Arduino...

2009-03-16T22:42:10Z

New page: ===== Introduction ===== I built a [http://www.evilmadscientist.com/article.php/meggyjr Meggy Jr RGB] kit designed by Windell Oskay (Evil Mad Scientists Laboratory). ===== Standard Arduino...

New page

===== Introduction =====
I built a [http://www.evilmadscientist.com/article.php/meggyjr Meggy Jr RGB]
kit designed by Windell Oskay (Evil Mad Scientists Laboratory).
===== Standard Arduino main program: =====
<pre>
int main(void) {
setup();
for (;;)
loop();
return 0;
}
</pre>
===== Simplified Meggy API (part): =====
<pre>
#include <MeggyJrSimple.h>

EmptyScreen(); Turn off all LED

DrawPx(x,y,color); Turn on LED (x=0~7, y=0~7, color=0~15)
( x=0,y=0 is lower left )

ShowScreen(); Copy buffer array to display video array

SetAuxLEDs(N); Set top LEDs: N=1:FarLeft, N=255:AllOn

CheckButtonsDown() Check which buttons currently pressed.
Sets six (global) variables:
Button_A, Button_B, Button_Up,
Button_Down, Button_Left, Button_Right
if (Button_Left || Button_Up ) ...
</pre>

===== Regular Arduino calls still available: =====
<pre>
delay(N); Delay N msec.
long millis(); Current time in msec.
random(X); Random number in [0,X)
</pre>

===== Colors for DrawPx(): =====
<pre>
0 Dark
1 Red 8 DimRed
2 Orange 9 DimOrange
3 Yellow 10 DimYellow
4 Green 11 DimGreen
12 DimAqua
5 Blue 13 DimBlue
6 Violet 14 DimViolet
7 White 15 FullOn
</pre>

===== Looping with delay() =====
<pre>
void setup() {
MeggyJrSimpleSetup();
}
void loop() {
DrawPx(7, 7, FullOn);
ShowScreen();
delay(100); // #1
DrawPx(7, 7, Dark);
ShowScreen();
delay(500); // #2
}
</pre>

===== Program looping over frames w/o delay() =====
<pre>
unsigned long gLastTime;
byte gWhichDelay;
int gDelayMsec;
void setup() {
MeggyJrSimpleSetup();
gLastTime = millis();
gWhichDelay = 2; // Waiting at: =1: first delay(),
// =2: second delay()
gDelayMsec = 500;
}
void loop() {
if ( millis() > gLastTime + gDelayMsec ) {
if ( gWhichDelay == 1 ) {
DrawPx(7, 7, Dark);
ShowScreen();
gDelayMsec = 500;
gWhichDelay = 2;
}
else {
DrawPx(7, 7, FullOn);
ShowScreen();
gDelayMsec = 100;
gWhichDelay = 1;
}
gLastTime = millis();
}
}
</pre>
===== References =====
* [http://www.evilmadscientist.com/article.php/meggyjr Meggy Jr Product Description -- http://www.evilmadscientist.com/article.php/meggyjr]