Hotboards MX
This sketch prints "Hello World!" to the LCD and uses the scrollDisplayLeft() and scrollDisplayRight() methods to scroll the text.
Dependencies: Hotboards_SpiLcd mbed
Revision 0:bd5a3c76e81f, committed 2016-02-02
- Comitter:
- Hotboards
- Date:
- Tue Feb 02 22:17:34 2016 +0000
- Commit message:
- First release: Hotboards_SpiLcd_Scroll
Changed in this revision
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/Hotboards_SpiLcd.lib Tue Feb 02 22:17:34 2016 +0000 @@ -0,0 +1,1 @@ +https://developer.mbed.org/users/Hotboards/code/Hotboards_SpiLcd/#b777b6147d99
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Tue Feb 02 22:17:34 2016 +0000
@@ -0,0 +1,82 @@
+/*
+ LiquidCrystal Library - scrollDisplayLeft() and scrollDisplayRight()
+ Demonstrates the use a 16x2 LCD display. The Hotboards_SpiLcd
+ library works with all LCD displays that are compatible with the
+ ST7032 driver presented on Spi Lcd board (http://www.hotboards.org).
+ This sketch prints "Hello World!" to the LCD and uses the
+ scrollDisplayLeft() and scrollDisplayRight() methods to scroll
+ the text.
+ The circuit:
+ * BKL --> GND
+ * VDD --> 3.3v
+ * GND --> GND
+ * SCK --> PA_5
+ * SI --> PA_6
+ * CS --> PB_15
+ * RS --> PB_14
+ * RST --> PB_13
+ Library and example ported by Diego from Hotboards and originally created
+ by David A. Mellis
+ library modified 5 Jul 2009
+ by Limor Fried (http://www.ladyada.net)
+ example added 9 Jul 2009
+ by Tom Igoe
+ modified 22 Nov 2010
+ by Tom Igoe
+ */
+
+#include "mbed.h"
+#include "Hotboards_SpiLcd.h"
+
+/* initialize an instance of SPI bus,setting the SPI pins*/
+SPI device(PA_7,PA_6,PA_5); /* SO, SI, SCK*/
+/* initialize the library with the numbers of the interface pins*/
+Hotboards_SpiLcd display( device, PB_15, PB_14, PB_13 ); /* SPI, CS, RS, RST */
+
+
+int main()
+{
+ /* set the spi frequency to 5MHz*/
+ device.frequency(5000000);
+ /* initialize internal lcd controller:*/
+ display.init();
+ // Print a message to the LCD.
+ display.printf("hello, world!");
+ wait(1);
+
+ while(1)
+ {
+ // scroll 13 positions (string length) to the left
+ // to move it offscreen left:
+ for (int positionCounter = 0; positionCounter < 13; positionCounter++)
+ {
+ // scroll one position left:
+ display.scrollDisplayLeft();
+ // wait a bit:
+ wait(0.2);
+ }
+
+ // scroll 29 positions (string length + display length) to the right
+ // to move it offscreen right:
+ for (int positionCounter = 0; positionCounter < 29; positionCounter++)
+ {
+ // scroll one position right:
+ display.scrollDisplayRight();
+ // wait a bit:
+ wait(0.2);
+ }
+
+ // scroll 16 positions (display length + string length) to the left
+ // to move it back to center:
+ for (int positionCounter = 0; positionCounter < 16; positionCounter++)
+ {
+ // scroll one position left:
+ display.scrollDisplayLeft();
+ // wait a bit:
+ wait(0.2);
+ }
+
+ // delay at the end of the full loop:
+ wait(1);
+ }
+}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Tue Feb 02 22:17:34 2016 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/6f327212ef96 \ No newline at end of file