Martorinho
07.01.2015, 14:50
Also erstmal danke. und ja, da hast du vollkommen recht. aber ich werde nie wieder was mit c programmieren und der arduino zu tun haben und ich will einfach nur das es funktioniert.
jetzt habe ich auch einen code, bei dem man aber leider nur im code selber die "message" eingeben kann.
in dem char "requestString[] " wird ja einfach ein wort gespeichert. jetzt wäre es sehr schön, wenn ich über den serial.monitor was eingeben kann, das dann in requestString[] gespeichert wird. aber Serial.read klappt ja leider nicht bei arrays....
im folgenden der code:
int speed = 20; //number of times to repeat each frame
int pauseDelay = 500; //microseconds to leave each row on before moving to the next
char requestString[] = " blablabla " //The string to display
//to change the message in code you right yourself simply
//change this data and reset index and offset to 0
//Variables used for scrolling (both start at 0
int index = 0; //this is the current charachter in the string being displayed
int offset = 0; //this is how many columns it is offset by
//Pin Definitions
int rowA[] = {9,8,7,6,5,4,3,2}; //An Array defining which pin each row is attached to
//(rows are common anode (drive HIGH))
int colA[] = {17,16,15,14,13,12,11,10}; //An Array defining which pin each column is attached to
//(columns are common cathode (drive LOW))
//Constants defining each charachters position in an array of integer arrays
//Letters
const int A = 0; const int B = 1; const int C = 2; const int D = 3; const int E = 4;
const int F = 5; const int G = 6; const int H = 7; const int I = 8; const int J = 9;
const int K = 10; const int L =11; const int M = 12; const int N = 13; const int O = 14;
const int P = 15; const int Q =16; const int R = 17; const int S = 18; const int T = 19;
const int U = 20; const int V =21; const int W = 22; const int X = 23; const int Y = 24;
const int Z = 25;
//Punctuation
const int COL =26; const int DASH = 27; const int BRA2 = 28; const int _ = 29; const int LINE = 34;
const int DOT =36;
//Extra Charchters
const int FULL =30; const int CHECK = 31; const int B2 = 32; const int TEMP = 33;
const int SMILE =35; const int COLDOT = 36;
//The array used to hold a bitmap of the display
//(if you wish to do something other than scrolling marque change the data in this
//variable then display)
byte data[] = {0,0,0,0,0,0,0,0};
//The alphabet
//Each Charachter is an 8 x 7 bitmap where 1 is on and 0 if off
const int _A[] = {B0001000,
B0010100,
B0100010,
B1000001,
B1111111,
B1000001,
B1000001,
B0000000};
const int _B[] = {B1111110,
B0100001,
B0100001,
B0111110,
B0100001,
B0100001,
B1111110,
B0000000};
const int _C[] = {B0011111,
B0100000,
B1000000,
B1000000,
B1000000,
B0100000,
B0011111,
B0000000};
const int _D[] = {B1111100,
B0100010,
B0100001,
B0100001,
B0100001,
B0100010,
B1111100,
B0000000};
const int _E[] = {B1111111,
B1000000,
B1000000,
B1111100,
B1000000,
B1000000,
B1111111,
B0000000};
const int _F[] = {B1111111,
B1000000,
B1000000,
B1111100,
B1000000,
B1000000,
B1000000,
B0000000};
const int _G[] = {B0011111,
B0100000,
B1000000,
B1001111,
B1000001,
B0100001,
B0011111,
B0000000};
const int _H[] = {B1000001,
B1000001,
B1000001,
B1111111,
B1000001,
B1000001,
B1000001,
B0000000};
const int _I[] = {B1111111,
B0001000,
B0001000,
B0001000,
B0001000,
B0001000,
B1111111,
B0000000};
const int _J[] = {B0001111,
B0000001,
B0000001,
B0000001,
B0000001,
B1000001,
B0111110,
B0000000};
const int _K[] = {B1000011,
B1000100,
B1001000,
B1110000,
B1001000,
B1000100,
B1000011,
B0000000};
const int _L[] = {B1000000,
B1000000,
B1000000,
B1000000,
B1000000,
B1000000,
B1111111,
B0000000};
const int _M[] = {B1110110,
B1001001,
B1001001,
B1001001,
B1001001,
B1001001,
B1001001,
B0000000};
const int _N[] = {B1000001,
B1100001,
B1010001,
B1001001,
B1000101,
B1000011,
B1000001,
B0000000};
const int _O[] = {B0011100,
B0100010,
B1000001,
B1001001,
B1000001,
B0100010,
B0011100,
B0000000};
const int _P[] = {B1111110,
B0100001,
B0100001,
B0111110,
B0100000,
B0100000,
B0100000,
B0000000};
const int _Q[] = {B0011100,
B0100010,
B1000001,
B1000001,
B1000101,
B0100010,
B0011101,
B0000000};
const int _R[] = {B1111110,
B0100001,
B0100001,
B0101110,
B0100100,
B0100010,
B0100001,
B0000000};
const int _S[] = {B0111111,
B1000000,
B1000000,
B0111110,
B0000001,
B0000001,
B1111110,
B0000000};
const int _T[] = {B1111111,
B0001000,
B0001000,
B0001000,
B0001000,
B0001000,
B0001000,
B0000000};
const int _U[] = {B1000001,
B1000001,
B1000001,
B1000001,
B1000001,
B1000001,
B0111110,
B0000000};
const int _V[] = {B1000001,
B1000001,
B1000001,
B1000001,
B0100010,
B0010100,
B0001000,
B0000000};
const int _W[] = {B1000001,
B1001001,
B1001001,
B1001001,
B1001001,
B1001001,
B0110110,
B0000000};
const int _X[] = {B1000001,
B0100010,
B0010100,
B0001000,
B0010100,
B0100010,
B1000001,
B0000000};
const int _Y[] = {B1000001,
B0100010,
B0010100,
B0001000,
B0001000,
B0001000,
B0001000,
B0000000};
const int _Z[] = {B1111111,
B0000010,
B0000100,
B0111110,
B0010000,
B0100000,
B1111111,
B0000000};
const int _COL[] = {B0000000,
B0011000,
B0011000,
B0000000,
B0011000,
B0011000,
B0000000,
B0000000};
const int _DASH[] = {B0000000,
B0000000,
B0000000,
B0111110,
B0000000,
B0000000,
B0000000,
B0000000};
const int _BRA2[] = {B0010000,
B0001000,
B0000100,
B0000100,
B0001000,
B0010000,
B0000000,
B0000000};
const int __[] = {B0000000,
B0000000,
B0000000,
B0000000,
B0000000,
B0000000,
B0000000,
B0000000};
const int _FULL[] = {B1111111,
B1111111,
B1111111,
B1111111,
B1111111,
B1111111,
B1111111,
B0000000};
const int _CHECK[] = {B1010101,
B0101010,
B1010101,
B0101010,
B1010101,
B0101010,
B1010101,
B0000000};
const int _B2[] = {B0111110,
B0000001,
B0000001,
B0001111,
B0000001,
B1000001,
B0111110,
B0000000};
const int _TEMP[] = {B0000011,
B0011111,
B0111111,
B1111110,
B1111111,
B0011111,
B0000011,
B0000000};
const int _LINE[] = {B0000001,
B0000001,
B0000001,
B0000001,
B0000001,
B0000001,
B0000001,
B0000000};
const int _SMILE[] = {B000000,
B1100100,
B1100010,
B0011001,
B1100010,
B1100100,
B0000000,
B0000000};
const int _DOT[] = {B0000000,
B0000000,
B0000000,
B0000000,
B1100000,
B1100000,
B0000000,
B0000000};
const int _COLDOT[] = {B0000000,
B0110000,
B0110000,
B0000000,
B0110011,
B0110011,
B0000000,
B0000000};
//Load the bitmap charachters into an array (each charachters position corresponds to its previously defined index (ie _A (a's bitmap)
//is at index 0 and A = 0 so letters[A] will return the 'A' bitmap)
const int* letters[] = {_A,_B,_C,_D,_E,_F,_G,_H,_I,_J,_K,_L,_M,_N,_O,_P,_ Q,_R,_S,_T,_U,_V,_W,_X,_Y,_Z,_COL,_DASH,_BRA2,__, _FULL, _CHECK, _B2, _TEMP, _LINE, _SMILE, _DOT, _COLDOT};
//Setup runs once when power is applied
void setup()
{
for(int i = 0; i <8; i++){ //Set the 16 pins used to control the array as OUTPUTs
pinMode(rowA[i], OUTPUT);
pinMode(colA[i], OUTPUT);
Serial.begin(9600);
}
}
//repeats
void loop()
{
updateMatrix();
}
void updateMatrix(){
loadSprite();
showSprite(speed);
}
//An array holding the powers of 2 these are used as bit masks when calculating what to display
const int powers[] = {1,2,4,8,16,32,64,128};
//Loads the current scroll state frame into the data[] display array
void loadSprite(){
int currentChar = getChar(requestString[index]);
int nextChar = getChar(requestString[index+1]);
for(int row=0; row < 8; row++){ //iterate through each row
data[row] = 0; //reset the row we're working on
for(int column=0; column < 8; column++){ //iterate through each column
data[row] = data[row] + ((powers[column] & (letters[currentChar][row] << offset))); //loads the current charachter offset by offset pixels
data[row] = data[row] + (powers[column] & (letters[nextChar][row] >> (8-offset) )); //loads the next charachter offset by offset pixels
}
}
offset++; //increment the offset by one row
if(offset==8){offset = 0; index++; if(index==sizeof(requestString)-2){index=0;}} //if offset is 8 load the next charachter pair for the next time through
}
void showSprite(int speed2){
for(int iii = 0; iii < speed2; iii++){ //show the current frame speed2 times
for(int column = 0; column < 8; column++){ //iterate through each column
for(int i = 0; i < 8; i++){
digitalWrite(rowA[i], LOW); //turn off all row pins
}
for(int i = 0; i < 8; i++){ //Set only the one pin
if(i == column){ digitalWrite(colA[i], LOW);} //turns the current row on
else{ digitalWrite(colA[i], HIGH); }//turns the rest of the rows off
}
for(int row = 0; row < 8; row++){ //iterate through each pixel in the current column
int bit = (data[column] >> row) & 1;
if(bit == 1){
digitalWrite(rowA[row], HIGH); //if the bit in the data array is set turn the LED on
}
}
delayMicroseconds(pauseDelay); //leave the column on for pauseDelay microseconds (too high a delay causes flicker)
}
}
}
//returns the index of a given charachter
//for converting from a string to a lookup in our array of charachter bitmaps
int getChar(char charachter){
int returnValue = Z;
switch(charachter){
case 'A': returnValue = A; break;
case 'a': returnValue = A; break;
case 'B': returnValue = B; break;
case 'b': returnValue = B; break;
case 'C': returnValue = C; break;
case 'c': returnValue = C; break;
case 'D': returnValue = D; break;
case 'd': returnValue = D; break;
case 'E': returnValue = E; break;
case 'e': returnValue = E; break;
case 'F': returnValue = F; break;
case 'f': returnValue = F; break;
case 'G': returnValue = G; break;
case 'g': returnValue = G; break;
case 'H': returnValue = H; break;
case 'h': returnValue = H; break;
case 'I': returnValue = I; break;
case 'i': returnValue = I; break;
case 'J': returnValue = J; break;
case 'j': returnValue = J; break;
case 'K': returnValue = K; break;
case 'k': returnValue = K; break;
case 'L': returnValue = L; break;
case 'l': returnValue = L; break;
case 'M': returnValue = M; break;
case 'm': returnValue = M; break;
case 'N': returnValue = N; break;
case 'n': returnValue = N; break;
case 'O': returnValue = O; break;
case 'o': returnValue = O; break;
case 'P': returnValue = P; break;
case 'p': returnValue = P; break;
case 'Q': returnValue = Q; break;
case 'q': returnValue = Q; break;
case 'R': returnValue = R; break;
case 'r': returnValue = R; break;
case 'S': returnValue = S; break;
case 's': returnValue = S; break;
case 'T': returnValue = T; break;
case 't': returnValue = T; break;
case 'U': returnValue = U; break;
case 'u': returnValue = U; break;
case 'V': returnValue = V; break;
case 'v': returnValue = V; break;
case 'W': returnValue = W; break;
case 'w': returnValue = W; break;
case 'X': returnValue = X; break;
case 'x': returnValue = X; break;
case 'Y': returnValue = Y; break;
case 'y': returnValue = Y; break;
case 'Z': returnValue = Z; break;
case 'z': returnValue = Z; break;
case ' ': returnValue = _; break;
case '3': returnValue = B2; break;
case '<': returnValue = TEMP; break;
case '*': returnValue = FULL; break;
case '|': returnValue = LINE; break;
case '_': returnValue = _; break;
case ':': returnValue = COL; break;
case '-': returnValue = DASH; break;
case ')': returnValue = BRA2; break;
case '%': returnValue = SMILE; break;
case '.': returnValue = DOT; break;
case '^': returnValue = COLDOT; break;
}
return returnValue;
}
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