Adafruit: 16x24 Red LED Matrix Panel - Revision history

Larmorgs: /* Sample C++ Code */

2012-12-02T07:59:31Z

‎Sample C++ Code

2012-11-08T23:26:22Z

‎Bone Usage

2012-11-08T23:25:03Z

2012-11-01T20:52:14Z

2012-10-22T06:26:38Z

2012-10-03T14:05:22Z

Added Grade

2012-09-24T17:26:11Z

‎Sample C++ Code

2012-09-24T17:25:14Z

‎Sample C++ Code

2012-09-24T17:24:30Z

‎Sample C++ Code

2012-09-24T17:23:03Z

‎Overview

@@ Line 145: / Line 145: @@
 </pre>
-This code example and the required resources can be found in [https://github.com/larmorgs/ece497 Greg Larmore's github repository]
+This code example and the required resources can be found in [https://github.com/larmoreg/ece497 Greg Larmore's github repository]
 == Updates ==

@@ Line 39: / Line 39: @@
 (R13/GPIO1_16) -> CS0 (white)
-(V14/GPIO1_17) -> DATA (orange)
+(V14/GPIO1_17) -> WR (yellow)
-(A14/GPIO1_28) -> WR (yellow)
+(A14/GPIO1_28) -> DATA (orange)

@@ Line 39: / Line 39: @@
 (R13/GPIO1_16) -> CS0 (white)
-(V14/GPIO1_17) -> DATA (yellow)
+(V14/GPIO1_17) -> DATA (orange)
-(A14/GPIO3_21) -> WR (orange)
+(A14/GPIO1_28) -> WR (yellow)
@@ Line 61: / Line 61: @@
 */
-#define DATA 117 //3_21
+#define BANK 1
-#define WR 49 //1_17
+#define DATA 28 //1_28
-#define CS 48 //1_16
+#define WR 17 //1_17
 void testMatrix2(HT1632LEDMatrix *matrix) {
-   //Display "Hi"
+   //Display "A+"
    matrix->setTextSize(2);
    matrix->setTextColor(1);
-   matrix->write('H');
+   matrix->write('A');
-   matrix->write('i');
+   matrix->write('+');
    matrix->writeScreen();
    usleep(2000000);
@@ Line 124: / Line 125: @@
 int main(void) {
    printf("Starting...\n");
-   HT1632LEDMatrix matrix = HT1632LEDMatrix(DATA, WR, CS);
+   HT1632LEDMatrix matrix = HT1632LEDMatrix(BANK, DATA, WR, CS);
    matrix.begin(HT1632_COMMON_16NMOS);

← Older revision		Revision as of 20:52, 1 November 2012
Line 1:		Line 1:
−	[[Category:ECE497]] [[Category:Adafruit]]	+	[[Category:ECE497]]
		+	[[Category:Adafruit]]

	<pre style="color:red">		<pre style="color:red">

← Older revision		Revision as of 06:26, 22 October 2012
Line 144:		Line 144:

	This code example and the required resources can be found in [https://github.com/larmorgs/ece497 Greg Larmore's github repository]		This code example and the required resources can be found in [https://github.com/larmorgs/ece497 Greg Larmore's github repository]
		+
		+	== Updates ==
		+
		+	A node.js implementation has been added that sends hard coded pictures to the bone. Also the driver has been switched over to use mmap for gpio writes to speed it up. Ideally the writes should occur at 500kHz now.
		+
		+	== Future Work ==
		+
		+	The node.js implementation should be modified to take in a .gif file. Or scrolling text could be implemented.

← Older revision		Revision as of 14:05, 3 October 2012
Line 1:		Line 1:
	[[Category:ECE497]] [[Category:Adafruit]]		[[Category:ECE497]] [[Category:Adafruit]]
		+
		+	<pre style="color:red">
		+	Overview: 2
		+	Wiring: 2
		+	Code: 2
		+	git/Compiles with make: 2
		+	Demo: 2
		+	Total: 10
		+	Comments: Looks good.
		+	Have you been able to look into other ways besides bit banging to drive the display?
		+	</pre>

	[[File:16x24_LED_Matrix.jpg\|500px\|16x24 LED Matrix Display]]		[[File:16x24_LED_Matrix.jpg\|500px\|16x24 LED Matrix Display]]

← Older revision		Revision as of 17:26, 24 September 2012
Line 132:		Line 132:
	</pre>		</pre>

−	This code example and the required resources can be found in [https://github.com/larmorgs/ece497 ~~this~~ repository]	+	This code example and the required resources can be found in [https://github.com/larmorgs/ece497 Greg Larmore's github repository]

@@ Line 37: / Line 37: @@
 <pre>
 </pre>
 This code example and the required resources can be found in [https://github.com/larmorgs/ece497 this repository]

@@ Line 6: / Line 6: @@
 Adafruit's [http://www.adafruit.com/products/555 16x24 Red LED Matrix Panel] uses the [http://www.adafruit.com/datasheets/ht1632cv120.pdf HT1632C LED driver]. The driver has the ability to dim and flash and they can be chained together to produce large displays. The code developed for this Mini Project is based on Adafruit's [https://github.com/adafruit/HT1632 original HT1632 github repository] originally written for Arduino. It also uses a modified version of BoneHeader.h to support C++ originally from [https://github.com/millerap/ECE497 Andrew Miller's github repository].
-[[Image:Panel_Connector.jpg|thumb|right|alt=16x24 LED Matrix Display Side Connector|Back connector on the 16x24 LED Matrix Display courtesy of [http://www.adafruit.com/products/555 adafruit]]
+[[Image:Panel_Connector.jpg|thumb|right|alt=16x24 LED Matrix Display Side Connector|Back connector on the 16x24 LED Matrix Display courtesy of [http://www.adafruit.com/products/555/ adafruit]]]
 == Inputs and Outputs ==