Modified 3310 arduino playground code
Here’s the modified demo code for the 3310 series Lcd displays. The original version displayed “hello world” and gave all the codes for characters, but didn’t have any cursor control, so I added some. The extras are a CR+LF and a reset that takes you back to the top left corner ready for the next frame, as well as a slightly modified clear screen that also resets the cursor.
Feel free to suggest any modifications, I’ll add them and update it.
Anyway, here’s the code :
// Modified version of first listing on arduino playground
// Showing simple cursor control including carriage return
// plus line feed and resetting to top left.
// Original Code here:
// http://www.arduino.cc/playground/Code/PCD8544
// by Chris
//
// mods by telbonic.
// more stuff here:
// telbonic.wordpress.com
// --------------------------------------------------------
// For the function to turn number variables into chars
// --------------------------------------------------------
#include <stdlib.h>
#define PIN_SCE 7
#define PIN_RESET 6
#define PIN_DC 5
#define PIN_SDIN 4
#define PIN_SCLK 3
#define LCD_C LOW
#define LCD_D HIGH
#define LCD_X 84
#define LCD_Y 48
int value1 = 0;
char value2[5];
int cursor_position = 72; // counts from 72 (top left) to 1 (bottom right)
static const byte ASCII[][5] =
{
{
0x00, 0x00, 0x00, 0x00, 0x00 } // 20
,{
0x00, 0x00, 0x5f, 0x00, 0x00 } // 21 !
,{
0x00, 0x07, 0x00, 0x07, 0x00 } // 22 "
,{
0x14, 0x7f, 0x14, 0x7f, 0x14 } // 23 #
,{
0x24, 0x2a, 0x7f, 0x2a, 0x12 } // 24 $
,{
0x23, 0x13, 0x08, 0x64, 0x62 } // 25 %
,{
0x36, 0x49, 0x55, 0x22, 0x50 } // 26 &
,{
0x00, 0x05, 0x03, 0x00, 0x00 } // 27 '
,{
0x00, 0x1c, 0x22, 0x41, 0x00 } // 28 (
,{
0x00, 0x41, 0x22, 0x1c, 0x00 } // 29 )
,{
0x14, 0x08, 0x3e, 0x08, 0x14 } // 2a *
,{
0x08, 0x08, 0x3e, 0x08, 0x08 } // 2b +
,{
0x00, 0x50, 0x30, 0x00, 0x00 } // 2c ,
,{
0x08, 0x08, 0x08, 0x08, 0x08 } // 2d -
,{
0x00, 0x60, 0x60, 0x00, 0x00 } // 2e .
,{
0x20, 0x10, 0x08, 0x04, 0x02 } // 2f /
,{
0x3e, 0x51, 0x49, 0x45, 0x3e } // 30 0
,{
0x00, 0x42, 0x7f, 0x40, 0x00 } // 31 1
,{
0x42, 0x61, 0x51, 0x49, 0x46 } // 32 2
,{
0x21, 0x41, 0x45, 0x4b, 0x31 } // 33 3
,{
0x18, 0x14, 0x12, 0x7f, 0x10 } // 34 4
,{
0x27, 0x45, 0x45, 0x45, 0x39 } // 35 5
,{
0x3c, 0x4a, 0x49, 0x49, 0x30 } // 36 6
,{
0x01, 0x71, 0x09, 0x05, 0x03 } // 37 7
,{
0x36, 0x49, 0x49, 0x49, 0x36 } // 38 8
,{
0x06, 0x49, 0x49, 0x29, 0x1e } // 39 9
,{
0x00, 0x36, 0x36, 0x00, 0x00 } // 3a :
,{
0x00, 0x56, 0x36, 0x00, 0x00 } // 3b ;
,{
0x08, 0x14, 0x22, 0x41, 0x00 } // 3c <
,{
0x14, 0x14, 0x14, 0x14, 0x14 } // 3d =
,{
0x00, 0x41, 0x22, 0x14, 0x08 } // 3e >
,{
0x02, 0x01, 0x51, 0x09, 0x06 } // 3f ?
,{
0x32, 0x49, 0x79, 0x41, 0x3e } // 40 @
,{
0x7e, 0x11, 0x11, 0x11, 0x7e } // 41 A
,{
0x7f, 0x49, 0x49, 0x49, 0x36 } // 42 B
,{
0x3e, 0x41, 0x41, 0x41, 0x22 } // 43 C
,{
0x7f, 0x41, 0x41, 0x22, 0x1c } // 44 D
,{
0x7f, 0x49, 0x49, 0x49, 0x41 } // 45 E
,{
0x7f, 0x09, 0x09, 0x09, 0x01 } // 46 F
,{
0x3e, 0x41, 0x49, 0x49, 0x7a } // 47 G
,{
0x7f, 0x08, 0x08, 0x08, 0x7f } // 48 H
,{
0x00, 0x41, 0x7f, 0x41, 0x00 } // 49 I
,{
0x20, 0x40, 0x41, 0x3f, 0x01 } // 4a J
,{
0x7f, 0x08, 0x14, 0x22, 0x41 } // 4b K
,{
0x7f, 0x40, 0x40, 0x40, 0x40 } // 4c L
,{
0x7f, 0x02, 0x0c, 0x02, 0x7f } // 4d M
,{
0x7f, 0x04, 0x08, 0x10, 0x7f } // 4e N
,{
0x3e, 0x41, 0x41, 0x41, 0x3e } // 4f O
,{
0x7f, 0x09, 0x09, 0x09, 0x06 } // 50 P
,{
0x3e, 0x41, 0x51, 0x21, 0x5e } // 51 Q
,{
0x7f, 0x09, 0x19, 0x29, 0x46 } // 52 R
,{
0x46, 0x49, 0x49, 0x49, 0x31 } // 53 S
,{
0x01, 0x01, 0x7f, 0x01, 0x01 } // 54 T
,{
0x3f, 0x40, 0x40, 0x40, 0x3f } // 55 U
,{
0x1f, 0x20, 0x40, 0x20, 0x1f } // 56 V
,{
0x3f, 0x40, 0x38, 0x40, 0x3f } // 57 W
,{
0x63, 0x14, 0x08, 0x14, 0x63 } // 58 X
,{
0x07, 0x08, 0x70, 0x08, 0x07 } // 59 Y
,{
0x61, 0x51, 0x49, 0x45, 0x43 } // 5a Z
,{
0x00, 0x7f, 0x41, 0x41, 0x00 } // 5b [
,{
0x02, 0x04, 0x08, 0x10, 0x20 } // 5c ¥
,{
0x00, 0x41, 0x41, 0x7f, 0x00 } // 5d ]
,{
0x04, 0x02, 0x01, 0x02, 0x04 } // 5e ^
,{
0x40, 0x40, 0x40, 0x40, 0x40 } // 5f _
,{
0x00, 0x01, 0x02, 0x04, 0x00 } // 60 `
,{
0x20, 0x54, 0x54, 0x54, 0x78 } // 61 a
,{
0x7f, 0x48, 0x44, 0x44, 0x38 } // 62 b
,{
0x38, 0x44, 0x44, 0x44, 0x20 } // 63 c
,{
0x38, 0x44, 0x44, 0x48, 0x7f } // 64 d
,{
0x38, 0x54, 0x54, 0x54, 0x18 } // 65 e
,{
0x08, 0x7e, 0x09, 0x01, 0x02 } // 66 f
,{
0x0c, 0x52, 0x52, 0x52, 0x3e } // 67 g
,{
0x7f, 0x08, 0x04, 0x04, 0x78 } // 68 h
,{
0x00, 0x44, 0x7d, 0x40, 0x00 } // 69 i
,{
0x20, 0x40, 0x44, 0x3d, 0x00 } // 6a j
,{
0x7f, 0x10, 0x28, 0x44, 0x00 } // 6b k
,{
0x00, 0x41, 0x7f, 0x40, 0x00 } // 6c l
,{
0x7c, 0x04, 0x18, 0x04, 0x78 } // 6d m
,{
0x7c, 0x08, 0x04, 0x04, 0x78 } // 6e n
,{
0x38, 0x44, 0x44, 0x44, 0x38 } // 6f o
,{
0x7c, 0x14, 0x14, 0x14, 0x08 } // 70 p
,{
0x08, 0x14, 0x14, 0x18, 0x7c } // 71 q
,{
0x7c, 0x08, 0x04, 0x04, 0x08 } // 72 r
,{
0x48, 0x54, 0x54, 0x54, 0x20 } // 73 s
,{
0x04, 0x3f, 0x44, 0x40, 0x20 } // 74 t
,{
0x3c, 0x40, 0x40, 0x20, 0x7c } // 75 u
,{
0x1c, 0x20, 0x40, 0x20, 0x1c } // 76 v
,{
0x3c, 0x40, 0x30, 0x40, 0x3c } // 77 w
,{
0x44, 0x28, 0x10, 0x28, 0x44 } // 78 x
,{
0x0c, 0x50, 0x50, 0x50, 0x3c } // 79 y
,{
0x44, 0x64, 0x54, 0x4c, 0x44 } // 7a z
,{
0x00, 0x08, 0x36, 0x41, 0x00 } // 7b {
,{
0x00, 0x00, 0x7f, 0x00, 0x00 } // 7c |
,{
0x00, 0x41, 0x36, 0x08, 0x00 } // 7d }
,{
0x10, 0x08, 0x08, 0x10, 0x08 } // 7e ?
,{
0x78, 0x46, 0x41, 0x46, 0x78 } // 7f ?
};
void LcdCharacter(char character)
{
LcdWrite(LCD_D, 0x00);
for (int index = 0; index < 5; index++)
{
LcdWrite(LCD_D, ASCII[character - 0x20][index]);
}
LcdWrite(LCD_D, 0x00);
}
void LcdReturn(void)
{
// finish the old screen
if (cursor_position <= 71){
int bytesremain = cursor_position * 7;
for (int index = 1; index <= bytesremain; index++)
{
LcdWrite(LCD_D, 0x00);
}
cursor_position = 72;
}
}
// Basic carriage return function
// --------------------------------------------------------
void LcdCR(void)
{
if (cursor_position >= 61){
int bytesremain = (cursor_position - 60) * 7;
for (int index = 1; index <= bytesremain; index++)
{
LcdWrite(LCD_D, 0x00);
}
cursor_position = 60;
}
if ((cursor_position >= 49) && (cursor_position < 60)){
int bytesremain = (cursor_position - 48) * 7;
for (int index = 1; index <= bytesremain; index++)
{
LcdWrite(LCD_D, 0x00);
}
cursor_position = 48;
}
if ((cursor_position >= 37) && (cursor_position < 48)){
int bytesremain = (cursor_position - 36) * 7;
for (int index = 1; index <= bytesremain; index++)
{
LcdWrite(LCD_D, 0x00);
}
cursor_position = 36;
}
if ((cursor_position >= 25) && (cursor_position < 36)){
int bytesremain = (cursor_position - 24) * 7;
for (int index = 1; index <= bytesremain; index++)
{
LcdWrite(LCD_D, 0x00);
}
cursor_position = 24;
}
if ((cursor_position >= 13) && (cursor_position < 24)){
int bytesremain = (cursor_position - 12) * 7;
for (int index = 1; index <= bytesremain; index++)
{
LcdWrite(LCD_D, 0x00);
}
cursor_position = 12;
}
}
// Modified clear, resets the cursor to the top left
// but is slow
// --------------------------------------------------------
void LcdClear(void)
{
// finish the old screen
if (cursor_position <= 71){
int bytesremain = cursor_position * 7;
for (int index = 1; index <= bytesremain; index++)
{
LcdWrite(LCD_D, 0x00);
}
cursor_position = 72;
}
// clear the rest, reset cursor_position
for (int index = 0; index < 504; index++)
{
LcdWrite(LCD_D, 0x00);
}
}
void LcdInitialise(void)
{
pinMode(PIN_SCE, OUTPUT);
pinMode(PIN_RESET, OUTPUT);
pinMode(PIN_DC, OUTPUT);
pinMode(PIN_SDIN, OUTPUT);
pinMode(PIN_SCLK, OUTPUT);
digitalWrite(PIN_RESET, LOW);
digitalWrite(PIN_RESET, HIGH);
LcdWrite(LCD_C, 0x20);
LcdWrite(LCD_C, 0x0C);
}
void LcdString(char *characters)
{
while (*characters)
{
LcdCharacter(*characters++);
cursor_position--;
if (cursor_position < 1) {
cursor_position += 72;
}
}
}
void LcdWrite(byte dc, byte data)
{
digitalWrite(PIN_DC, dc);
digitalWrite(PIN_SCE, LOW);
shiftOut(PIN_SDIN, PIN_SCLK, MSBFIRST, data);
digitalWrite(PIN_SCE, HIGH);
}
void setup(void)
{
LcdInitialise();
LcdClear();
}
// Main loop, displays whatever is coming in on the
// six analog inputs.
// --------------------------------------------------------
void loop(void)
{
LcdReturn ();
LcdString ("Analog0:");
value1 = analogRead (0) ;
itoa (value1, value2, 10) ;
LcdString (value2) ;
LcdCR ();
LcdString ("Analog1:");
value1 = analogRead (1) ;
itoa (value1, value2, 10) ;
LcdString (value2) ;
LcdCR ();
LcdString ("Analog2:");
value1 = analogRead (2) ;
itoa (value1, value2, 10) ;
LcdString (value2) ;
LcdCR ();
LcdString ("Analog3:");
value1 = analogRead (3) ;
itoa (value1, value2, 10) ;
LcdString (value2) ;
LcdCR ();
LcdString ("Analog4:");
value1 = analogRead (4) ;
itoa (value1, value2, 10) ;
LcdString (value2) ;
LcdCR ();
LcdString ("Analog5:");
value1 = analogRead (5) ;
itoa (value1, value2, 10) ;
LcdString (value2) ;
}
*Phut* 