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/*
Blink
Turns on an LED on for one second, then off for one second, repeatedly.
This example code is in the public domain.
*/
#define ROW 3
#define COL 0
#define ROWCNT 7
#define COLCNT 13
#define CHARWIDTH 5
#define FRAMELEN 10
#define DELAY 3
int frame[COLCNT][ROWCNT] = {0};
/*const int frame_A[ROWCNT][CHARWIDTH] = {
{0, 0, 1, 0, 0},
{0, 0, 1, 0, 0},
{0, 1, 0, 1, 0},
{0, 1, 0, 1, 0},
{1, 1, 1, 1, 1},
{1, 0, 0, 0, 1},
{1, 0, 0, 0, 1},
};*/
/*const int frame_C[CHARWIDTH][ROWCNT] = {
{0, 0, 1, 1, 1},
{0, 1, 1, 0, 0},
{1, 1, 0, 0, 0},
{1, 0, 0, 0, 0},
{1, 1, 0, 0, 0},
{0, 1, 1, 0, 0},
{0, 0, 1, 1, 1},
};
const int frame_H[ROWCNT][CHARWIDTH] = {
{1, 0, 0, 0, 1},
{1, 0, 0, 0, 1},
{1, 0, 0, 0, 1},
{1, 1, 1, 1, 1},
{1, 0, 0, 0, 1},
{1, 0, 0, 0, 1},
{1, 0, 0, 0, 1},
};
const int frame_L[ROWCNT][CHARWIDTH] = {
{1, 0, 0, 0, 0},
{1, 0, 0, 0, 0},
{1, 0, 0, 0, 0},
{1, 0, 0, 0, 0},
{1, 0, 0, 0, 0},
{1, 0, 0, 0, 0},
{1, 1, 1, 1, 1},
};*/
const int frame_MINUS[CHARWIDTH][ROWCNT] = {
{0, 0, 0, 1, 0, 0, 0},
{0, 0, 0, 1, 0, 0, 0},
{0, 0, 0, 1, 0, 0, 0},
{0, 0, 0, 1, 0, 0, 0},
{0, 0, 0, 1, 0, 0, 0},
};
const int emptyCol[ROWCNT] = {0};
unsigned long int framenr = 0;
int rownr = 0;
void setup() {
// initialize the digital pin as an output.
// Pin 13 has an LED connected on most Arduino boards:
int i;
for (i = 0;i < ROWCNT; i++)
pinMode(ROW + i, OUTPUT);
for (i = 0;i < COLCNT; i++)
pinMode(COL + i, OUTPUT);
}
void setCol(int c, const int data[ROWCNT]) {
int r;
if (c > 0 && c <= COLCNT) {
for (r = 0; r < ROWCNT; r++)
frame[c][r] = data[r];
}
}
void setChar(int c, const int data[CHARWIDTH][ROWCNT]) {
int i;
for (i = 0; i < CHARWIDTH; i++)
setCol(c+i, data[i]);
}
void clearFrame() {
int i = 0;
for (i = 0; i < COLCNT; i++)
setCol(i, emptyCol);
}
void nextFrame() {
int c;
int f2 = (framenr/FRAMELEN) % (COLCNT+CHARWIDTH);
clearFrame();
setChar(COLCNT-f2, frame_MINUS);
}
void loop() {
int i;
rownr = ( rownr + 1 ) % ROWCNT;
if (rownr == 0) {
framenr++;
nextFrame();
}
for (i = 0; i < COLCNT; i++) {
digitalWrite(COL + i, frame[rownr][i]);
}
digitalWrite(ROW + rownr, HIGH);
delay(DELAY);
digitalWrite(ROW + rownr, LOW);
}
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