Yihui Xiong
LED matrix library for http://goo.gl/y6VnO6.
Revision 0:43feb8b53696, committed 2013-11-08
- Comitter:
- yihui
- Date:
- Fri Nov 08 06:51:49 2013 +0000
- Commit message:
- LED matrix display using http://goo.gl/y6VnO6.
Changed in this revision
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/LEDMatrix.lib Fri Nov 08 06:51:49 2013 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/yihui/code/LEDMatrix/#13728deac7a7
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Fri Nov 08 06:51:49 2013 +0000
@@ -0,0 +1,94 @@
+/**
+ * LED Matrix library for http://www.seeedstudio.com/depot/ultrathin-16x32-red-led-matrix-panel-p-1582.html
+ * The LED Matrix panel has 32x16 pixels. Several panel can be combined together as a large screen.
+ *
+ * Coordinate & Connection (mbed -> panel 0 -> panel 1 -> ...)
+ * (0, 0) (0, 0)
+ * +--------+--------+--------+ +--------+--------+
+ * | 5 | 3 | 1 | | 1 | 0 |
+ * | | | | | | |<----- mbed
+ * +--------+--------+--------+ +--------+--------+
+ * | 4 | 2 | 0 | (64, 16)
+ * | | | |<----- mbed
+ * +--------+--------+--------+
+ * (96, 32)
+ *
+ */
+
+#include "mbed.h"
+#include "LEDMatrix.h"
+
+#define WIDTH 64
+#define HEIGHT 16
+
+BusOut leds(LED1, LED2, LED3, LED4);
+
+// LEDMatrix(a, b, c, d, oe, r1, stb, clk);
+LEDMatrix matrix(P1_18, P1_24, P1_25, P1_5, P1_26, P1_27, P0_2, P1_29);
+Ticker scanner;
+
+// Display Buffer 128 = 64 * 16 / 8
+uint8_t displaybuf[WIDTH *HEIGHT / 8] = {
+ 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x01, 0xFC, 0x00, 0x00, 0x00, 0x00, 0x00, 0x60, 0x01, 0xF8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x60,
+ 0x01, 0xF0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x60, 0x00, 0xE0, 0x07, 0x8F, 0xC7, 0xC7, 0xC7, 0xE0,
+ 0x00, 0x40, 0x0C, 0xCE, 0x6C, 0x6C, 0x6C, 0xE0, 0x00, 0xE0, 0x0C, 0x0C, 0x6C, 0x6C, 0x6C, 0x60,
+ 0x01, 0xF0, 0x07, 0x8C, 0x6F, 0xEF, 0xEC, 0x60, 0x23, 0xF8, 0x00, 0xCC, 0x6C, 0x0C, 0x0C, 0x60,
+ 0x33, 0xF8, 0x0C, 0xCE, 0x6C, 0x6C, 0x6C, 0xE0, 0x3B, 0xF8, 0x07, 0x8F, 0xC7, 0xC7, 0xC7, 0xE0,
+ 0x3B, 0xF8, 0x00, 0x0C, 0x00, 0x00, 0x00, 0x00, 0x1B, 0xF8, 0x00, 0x0C, 0x00, 0x00, 0x00, 0x00,
+ 0x0B, 0xF8, 0x00, 0x0C, 0x00, 0x00, 0x00, 0x00, 0x07, 0xF8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+};
+
+// 16 * 8 digital font
+const uint8_t digitals[] = {
+ 0x00, 0x1C, 0x36, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x36, 0x1C, 0x00, 0x00, 0x00, 0x00, // 0
+ 0x00, 0x18, 0x78, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x7E, 0x00, 0x00, 0x00, 0x00, // 1
+ 0x00, 0x3E, 0x63, 0x63, 0x63, 0x06, 0x06, 0x0C, 0x18, 0x30, 0x63, 0x7F, 0x00, 0x00, 0x00, 0x00, // 2
+ 0x00, 0x3E, 0x63, 0x63, 0x06, 0x1C, 0x06, 0x03, 0x03, 0x63, 0x66, 0x3C, 0x00, 0x00, 0x00, 0x00, // 3
+ 0x00, 0x06, 0x0E, 0x1E, 0x36, 0x36, 0x66, 0x66, 0x7F, 0x06, 0x06, 0x1F, 0x00, 0x00, 0x00, 0x00, // 4
+ 0x00, 0x7F, 0x60, 0x60, 0x60, 0x7C, 0x76, 0x03, 0x03, 0x63, 0x66, 0x3C, 0x00, 0x00, 0x00, 0x00, // 5
+ 0x00, 0x1E, 0x36, 0x60, 0x60, 0x7C, 0x76, 0x63, 0x63, 0x63, 0x36, 0x1C, 0x00, 0x00, 0x00, 0x00, // 6
+ 0x00, 0x7F, 0x66, 0x66, 0x0C, 0x0C, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x00, 0x00, 0x00, 0x00, // 7
+ 0x00, 0x3E, 0x63, 0x63, 0x63, 0x36, 0x1C, 0x36, 0x63, 0x63, 0x63, 0x3E, 0x00, 0x00, 0x00, 0x00, // 8
+ 0x00, 0x1C, 0x36, 0x63, 0x63, 0x63, 0x37, 0x1F, 0x03, 0x03, 0x36, 0x3C, 0x00, 0x00, 0x00, 0x00, // 9
+};
+
+// (x, y) top-left position, x should be multiple of 8
+void drawDigital(uint16_t x, uint16_t y, uint8_t n)
+{
+ if ((n >= 10) || (0 != (x % 8))) {
+ return;
+ }
+
+ uint8_t *pDst = displaybuf + y * (WIDTH / 8) + x / 8;
+ const uint8_t *pSrc = digitals + n * 16;
+ for (uint8_t i = 0; i < 16; i++) {
+ *pDst = *pSrc;
+ pDst += WIDTH / 8;
+ pSrc++;
+ }
+}
+
+
+void scan()
+{
+ matrix.scan();
+}
+
+int main() {
+ matrix.begin(displaybuf, WIDTH, HEIGHT);
+ scanner.attach(scan, 0.001);
+
+ wait(3);
+ matrix.clear();
+
+ uint8_t count = 0;
+ while(1) {
+ drawDigital(40, 0, count);
+
+ leds = ~count;
+ wait(1);
+ count = (count + 1) & 0x7;
+
+ }
+}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Fri Nov 08 06:51:49 2013 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/a9913a65894f \ No newline at end of file