Hotboards MX / Mbed 2 deprecated Hotboards_SpiLcd_TextDirection

This sketch demonstrates how to use leftToRight() and rightToLeft() to move the cursor.

Dependencies:   Hotboards_SpiLcd mbed

main.cpp@0:578fd358c3d3, 2016-02-02 (annotated)

Committer:
Hotboards
Date:
Tue Feb 02 22:50:35 2016 +0000
Revision:
0:578fd358c3d3
First Release: Hotboards_SpiLcd_TextDirection

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Hotboards 0:578fd358c3d3 1 /*
Hotboards 0:578fd358c3d3 2 Hotboards_SpiLcd - TextDirection
Hotboards 0:578fd358c3d3 3 Demonstrates the use a 16x2 LCD display. The Hotboards_SpiLcd
Hotboards 0:578fd358c3d3 4 library works with all LCD displays that are compatible with the
Hotboards 0:578fd358c3d3 5 ST7032 driver presented on Spi Lcd board (http://www.hotboards.org).
Hotboards 0:578fd358c3d3 6 This sketch demonstrates how to use leftToRight() and rightToLeft()
Hotboards 0:578fd358c3d3 7 to move the cursor.
Hotboards 0:578fd358c3d3 8 The circuit:
Hotboards 0:578fd358c3d3 9 * BKL --> GND
Hotboards 0:578fd358c3d3 10 * VDD --> 3.3v
Hotboards 0:578fd358c3d3 11 * GND --> GND
Hotboards 0:578fd358c3d3 12 * SCK --> PA_5
Hotboards 0:578fd358c3d3 13 * SI --> PA_6
Hotboards 0:578fd358c3d3 14 * CS --> PB_15
Hotboards 0:578fd358c3d3 15 * RS --> PB_14
Hotboards 0:578fd358c3d3 16 * RST --> PB_13
Hotboards 0:578fd358c3d3 17 Library and example ported by Diego from Hotboards and originally created
Hotboards 0:578fd358c3d3 18 by David A. Mellis
Hotboards 0:578fd358c3d3 19 library modified 5 Jul 2009
Hotboards 0:578fd358c3d3 20 by Limor Fried (http://www.ladyada.net)
Hotboards 0:578fd358c3d3 21 example added 9 Jul 2009
Hotboards 0:578fd358c3d3 22 by Tom Igoe
Hotboards 0:578fd358c3d3 23 modified 22 Nov 2010
Hotboards 0:578fd358c3d3 24 by Tom Igoe
Hotboards 0:578fd358c3d3 25 */
Hotboards 0:578fd358c3d3 26 #include "mbed.h"
Hotboards 0:578fd358c3d3 27 #include "Hotboards_SpiLcd.h"
Hotboards 0:578fd358c3d3 28
Hotboards 0:578fd358c3d3 29 /* initialize an instance of SPI bus,setting the SPI pins*/
Hotboards 0:578fd358c3d3 30 SPI device(PA_7,PA_6,PA_5); /* SO, SI, SCK*/
Hotboards 0:578fd358c3d3 31 /* initialize the library with the numbers of the interface pins*/
Hotboards 0:578fd358c3d3 32 Hotboards_SpiLcd display( device, PB_15, PB_14, PB_13 ); /* SPI, CS, RS, RST */
Hotboards 0:578fd358c3d3 33
Hotboards 0:578fd358c3d3 34 int thisChar = 'a';
Hotboards 0:578fd358c3d3 35
Hotboards 0:578fd358c3d3 36 int main()
Hotboards 0:578fd358c3d3 37 {
Hotboards 0:578fd358c3d3 38 /* set the spi frequency to 5MHz*/
Hotboards 0:578fd358c3d3 39 device.frequency(5000000);
Hotboards 0:578fd358c3d3 40 /* initialize internal lcd controller:*/
Hotboards 0:578fd358c3d3 41 display.init();
Hotboards 0:578fd358c3d3 42 // turn on the cursor:
Hotboards 0:578fd358c3d3 43 display.cursor();
Hotboards 0:578fd358c3d3 44
Hotboards 0:578fd358c3d3 45 while(1)
Hotboards 0:578fd358c3d3 46 {
Hotboards 0:578fd358c3d3 47 // reverse directions at 'm':
Hotboards 0:578fd358c3d3 48 if (thisChar == 'm')
Hotboards 0:578fd358c3d3 49 {
Hotboards 0:578fd358c3d3 50 // go right for the next letter
Hotboards 0:578fd358c3d3 51 display.rightToLeft();
Hotboards 0:578fd358c3d3 52 }
Hotboards 0:578fd358c3d3 53 // reverse again at 's':
Hotboards 0:578fd358c3d3 54 if (thisChar == 's')
Hotboards 0:578fd358c3d3 55 {
Hotboards 0:578fd358c3d3 56 // go left for the next letter
Hotboards 0:578fd358c3d3 57 display.leftToRight();
Hotboards 0:578fd358c3d3 58 }
Hotboards 0:578fd358c3d3 59 // reset at 'z':
Hotboards 0:578fd358c3d3 60 if (thisChar > 'z')
Hotboards 0:578fd358c3d3 61 {
Hotboards 0:578fd358c3d3 62 // go to (0,0):
Hotboards 0:578fd358c3d3 63 display.home();
Hotboards 0:578fd358c3d3 64 // start again at 0
Hotboards 0:578fd358c3d3 65 thisChar = 'a';
Hotboards 0:578fd358c3d3 66 }
Hotboards 0:578fd358c3d3 67 // print the character
Hotboards 0:578fd358c3d3 68 display.printf("%c",thisChar);
Hotboards 0:578fd358c3d3 69 // wait a second:
Hotboards 0:578fd358c3d3 70 wait(1);
Hotboards 0:578fd358c3d3 71 // increment the letter:
Hotboards 0:578fd358c3d3 72 thisChar++;
Hotboards 0:578fd358c3d3 73 }
Hotboards 0:578fd358c3d3 74 }