Hallo Zusammen
Ich habe ein kleines Problem mit der 8x8 Matrix
http://www.amazon.de/gp/product/B00GKEMQUM?psc=1&redirect=true&ref_=oh_aui_detailpage_o01_s00
Der Beispielcode von Jurs
// Laufschrift-Demo für 8x8 LED Matrix mit Max7219
// By 'jurs' for German Arduino Forum
/* Used Pins */
int Max7219_pinCLK = 10;
int Max7219_pinCS = 9;
int Max7219_pinDIN = 8;
#define NUMCHARS 37 // Kleiner Zeichensatz aus 37 Zeichen (0..9, A..Z und Leerzeichen)
const char chars[NUMCHARS+1]="0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ ";
const unsigned char disp1[NUMCHARS][8]={
{0x3C,0x42,0x42,0x42,0x42,0x42,0x42,0x3C},//0
{0x10,0x30,0x50,0x10,0x10,0x10,0x10,0x10},//1
{0x7E,0x2,0x2,0x7E,0x40,0x40,0x40,0x7E},//2
{0x3E,0x2,0x2,0x3E,0x2,0x2,0x3E,0x0},//3
{0x8,0x18,0x28,0x48,0xFE,0x8,0x8,0x8},//4
{0x3C,0x20,0x20,0x3C,0x4,0x4,0x3C,0x0},//5
{0x3C,0x20,0x20,0x3C,0x24,0x24,0x3C,0x0},//6
{0x3E,0x22,0x4,0x8,0x8,0x8,0x8,0x8},//7
{0x0,0x3E,0x22,0x22,0x3E,0x22,0x22,0x3E},//8
{0x3E,0x22,0x22,0x3E,0x2,0x2,0x2,0x3E},//9
{0x8,0x14,0x22,0x3E,0x22,0x22,0x22,0x22},//A
{0x3C,0x22,0x22,0x3E,0x22,0x22,0x3C,0x0},//B
{0x3C,0x40,0x40,0x40,0x40,0x40,0x3C,0x0},//C
{0x7C,0x42,0x42,0x42,0x42,0x42,0x7C,0x0},//D
{0x7C,0x40,0x40,0x7C,0x40,0x40,0x40,0x7C},//E
{0x7C,0x40,0x40,0x7C,0x40,0x40,0x40,0x40},//F
{0x3C,0x40,0x40,0x40,0x40,0x44,0x44,0x3C},//G
{0x44,0x44,0x44,0x7C,0x44,0x44,0x44,0x44},//H
{0x7C,0x10,0x10,0x10,0x10,0x10,0x10,0x7C},//I
{0x3C,0x8,0x8,0x8,0x8,0x8,0x48,0x30},//J
{0x0,0x24,0x28,0x30,0x20,0x30,0x28,0x24},//K
{0x40,0x40,0x40,0x40,0x40,0x40,0x40,0x7C},//L
{0x81,0xC3,0xA5,0x99,0x81,0x81,0x81,0x81},//M
{0x0,0x42,0x62,0x52,0x4A,0x46,0x42,0x0},//N
{0x3C,0x42,0x42,0x42,0x42,0x42,0x42,0x3C},//O
{0x3C,0x22,0x22,0x22,0x3C,0x20,0x20,0x20},//P
{0x1C,0x22,0x22,0x22,0x22,0x26,0x22,0x1D},//Q
{0x3C,0x22,0x22,0x22,0x3C,0x24,0x22,0x21},//R
{0x0,0x1E,0x20,0x20,0x3E,0x2,0x2,0x3C},//S
{0x0,0x3E,0x8,0x8,0x8,0x8,0x8,0x8},//T
{0x42,0x42,0x42,0x42,0x42,0x42,0x22,0x1C},//U
{0x42,0x42,0x42,0x42,0x42,0x42,0x24,0x18},//V
{0x0,0x49,0x49,0x49,0x49,0x2A,0x1C,0x0},//W
{0x0,0x41,0x22,0x14,0x8,0x14,0x22,0x41},//X
{0x41,0x22,0x14,0x8,0x8,0x8,0x8,0x8},//Y
{0x0,0x7F,0x2,0x4,0x8,0x10,0x20,0x7F},//Z
{0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0},// [Space]
};
void Write_Max7219_byte(unsigned char DATA)
{
unsigned char i;
digitalWrite(Max7219_pinCS,LOW);
for(i=8;i>=1;i--)
{
digitalWrite(Max7219_pinCLK,LOW);
digitalWrite(Max7219_pinDIN,DATA&0x80);//Obtain the MSB of the data
DATA = DATA<<1;
digitalWrite(Max7219_pinCLK,HIGH);
}
}
void Write_Max7219(unsigned char address,unsigned char data)
{
digitalWrite(Max7219_pinCS,LOW);
Write_Max7219_byte(address);
Write_Max7219_byte(data);
digitalWrite(Max7219_pinCS,HIGH);
}
void writeChar2Matrix(byte* databytes)
{
int i;
for(i=0;i<8;i++)
{
Write_Max7219(i+1,databytes[i]);
}
}
void Init_MAX7219(void)
{
Write_Max7219(0x09, 0x00); //decode: BCD
Write_Max7219(0x0a, 0x03); //Brightness
Write_Max7219(0x0b, 0x07); //
Write_Max7219(0x0c, 0x01); //
Write_Max7219(0x0f, 0x00); //
}
void setup()
{
pinMode(Max7219_pinCLK,OUTPUT);
pinMode(Max7219_pinCS,OUTPUT);
pinMode(Max7219_pinDIN,OUTPUT);
delay(50);
Init_MAX7219();
}
void textloop(char* text)
{
byte i,j,k;
byte data[8];
byte thischar, nextchar;
for(j=0;j<strlen(text);j++)
{
thischar=strchr(chars,text[j])-chars; // Index des Buchstaben im disp1 Array
// Index des nächsten Buchstaben im disp1 Array
if (j+1<strlen(text)) nextchar=strchr(chars,text[j+1])-chars;
else nextchar=strchr(chars,' ')-chars;
for (k=0;k<8;k++)
{
for (i=0;i<8;i++)
{
data[i]=((unsigned int)disp1[thischar][i]<<8 | disp1[nextchar][i]) >>8-k;
}
writeChar2Matrix(data);
delay(50);
}
}
}
void loop()
{
textloop(" LED 8X8 MATRIX LAUFSCHRIFT ");
}
Die Laufschrift funktionier alles, nur wie kann man die Richtung ändern.
Die Laufrichtung ist von oben nach unten, ich will sie aber von links nach rechts laufen lassen.
Wie kann man die Richtung ändern
Kann mir jemand einen Tipp geben wo ich was im Code ändern muss 
Habe schon alles Mögliche probiert und Mr. Google auch schon stundenlang durchsucht und englisch ist auch nicht meins.
Danke im Voraus
Martin
