Carlos GS
Muestra texto en la matriz de LEDs
Revision 0:ecf0f187117c, committed 2016-01-18
- Comitter:
- carlosgs
- Date:
- Mon Jan 18 15:10:52 2016 +0000
- Commit message:
- Initial commit
Changed in this revision
diff -r 000000000000 -r ecf0f187117c PixelArray.lib --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/PixelArray.lib Mon Jan 18 15:10:52 2016 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/JacobBramley/code/PixelArray/#47802e75974e
diff -r 000000000000 -r ecf0f187117c main.cpp
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Mon Jan 18 15:10:52 2016 +0000
@@ -0,0 +1,163 @@
+// Display de texto con scrolling
+// Basado en: https://github.com/hack-miniblip/hack-miniblip.github.io/tree/master/ejemplos/iluminandoLetras
+// Autores: @javacasm, @neon520, @juanAFernandez, @carlosgs
+
+#include "mbed.h"
+#include "neopixel.h"
+
+// Matrix led output pin
+#define DATA_PIN P0_9
+
+void fill_pixel(neopixel::Pixel buffer[25], int x, int y, int red, int green, int blue){
+
+ if(x<0) x=0;
+ if(x>4) x=4;
+ if(y<0) y=0;
+ if(y>4) y=4;
+
+
+ int posicion=x+y*5;
+ buffer[posicion].red=red;
+ buffer[posicion].green=green;
+ buffer[posicion].blue=blue;
+
+}
+
+void void_matrix(neopixel::Pixel aux[25], int tam=25){
+
+ for(int i=0;i<tam;i++){
+ aux[i].red=0;
+ aux[i].green=0;
+ aux[i].blue=0;
+ }
+}
+
+//r: intensidadRojo
+//g: intensidadVerde
+//b: intensidadAzul
+void generaLetra(neopixel::Pixel vector[], char letra, int red, int green, int blue, int scroll){
+
+ /*
+ * Cada letra tiene 5 valores en hexadecimal que representan en binario cada fila de la matrix 5x5 (aunque sobren 3 bits)
+ */
+ unsigned char espacio[5]={0x0, 0x0, 0x0, 0x0, 0x0};
+ unsigned char a[5]={0x88, 0x88, 0xF8, 0x88, 0x70};
+ unsigned char b[5]={0xF0, 0x88, 0xF0, 0x88, 0xF0};
+ unsigned char c[5]={0x78, 0x80, 0x80, 0x80, 0x78};
+ unsigned char d[5]={0xF0, 0x88, 0x88, 0x88, 0xF0};
+ unsigned char e[5]={0xF8, 0x80, 0xF8, 0x80, 0xF8};
+ unsigned char f[5]={0x80, 0x80, 0xE0, 0x80, 0xF8};
+ unsigned char g[5]={0x78, 0x88, 0xB8, 0x80, 0x78};
+ unsigned char h[5]={0x88, 0x88, 0xF8, 0x88, 0x88};
+ unsigned char i[5]={0x70, 0x20, 0x20, 0x20, 0x70};
+ unsigned char j[5]={0x70, 0x88, 0x8, 0x8, 0x38};
+ unsigned char k[5]={0x88, 0x88, 0xF0, 0xA0, 0x90};
+ unsigned char l[5]={0xF8, 0x80, 0x80, 0x80, 0x80};
+ unsigned char m[5]={0x88, 0x88, 0xA8, 0xD8, 0x88};
+ unsigned char n[5]={0x98, 0xA8, 0xA8, 0xA8, 0xC8};
+ unsigned char gn[5]={0x98, 0xA8, 0xA8, 0xA8, 0xC8}; // es la ñ
+ unsigned char o[5]={0x70, 0x88, 0x88, 0x88, 0x70};
+ unsigned char p[5]={0x80, 0x80, 0x78, 0x88, 0x78};
+ unsigned char q[5]={0x78, 0x90, 0x90, 0x90, 0x60};
+ unsigned char r[5]={0x88, 0x90, 0xF0, 0x88, 0xF0};
+ unsigned char s[5]={0xF0, 0x8, 0x70, 0x80, 0x78};
+ unsigned char t[5]={0x20, 0x20, 0x20, 0x20, 0xF8};
+ unsigned char u[5]={0x70,0x88,0x88,0x88,0x88};
+ unsigned char v[5]={0x20,0x50,0x50,0x88,0x88};
+ unsigned char w[5]={0x88,0xD8,0xA8,0x88,0x88};
+ unsigned char x[5]={0x88,0x50,0x20,0x50,0x88};
+ unsigned char y[5]={0x20,0x20,0x70,0x88,0x88};
+ unsigned char z[5]={0xF8,0x80,0x70,0x8,0xF8};
+
+
+ //unsigned char l0[0]=
+
+
+ //Montamos un vector de vectores:
+ unsigned char *vectorPunteros []={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};
+
+ //Con la letra recibida le restamos 26 y tenemos la posicion del vector.
+ //Para moverlo por los vectores.
+ unsigned char *puntero;
+ if (letra==32) //Se trata de un espacio
+ puntero=espacio;
+ else
+ //a= al valor 97
+ puntero=vectorPunteros[(letra-'a')];
+
+
+ //Vamos a recorrer todo el vector de bytes
+ for(int i=0; i<5; i++){
+
+ unsigned char elemento = puntero[i];
+ unsigned int mask=0x80;
+ //Nos movemos por 5 bits de los 8
+ for(int x=0; x<5; x++){
+ if (elemento & mask)
+ if(x+scroll >= 0 && x+scroll < 5)
+ fill_pixel(vector, x+scroll,i, red, green, blue);
+ //Desplazamos 1 bit
+ mask >>=1;
+ }
+ }
+}
+
+void iluminaTexto(char cadena[], neopixel::PixelArray array, int r, int g, int b){
+
+ //Creamos un vector de pixeles.
+ neopixel::Pixel letra[25];
+ //Inicializamos el vector a 0
+ void_matrix(letra);
+
+ char letraAnterior = ' ';
+
+ for(int i=0; i<strlen(cadena); i++){
+
+ for(int scroll=0; scroll<7; scroll++){
+ //Generamos la letra en el vector letra
+ generaLetra(letra, letraAnterior, r, g, b, -scroll-2);
+ generaLetra(letra, cadena[i], r, g, b, 5-scroll);
+ //Iluminamos la matriz
+ array.update(letra, 25);
+ //Esperamos
+ wait_ms(60);
+ //Reseteamos la matriz
+ void_matrix(letra);
+ }
+ letraAnterior = cadena[i];
+ }
+
+
+}
+
+PwmOut speaker(P0_8);
+
+int main()
+{
+ // Turn off miniblip buzzer
+ speaker=0.0;
+
+ // Create a temporary DigitalIn so we can configure the pull-down resistor.
+ DigitalIn(DATA_PIN, PullDown);
+
+ // The pixel array control class.
+ //Se está creando un objeto de tipo PixelArray y se está nombrando como array a la que se le está pasando DATA_PIN
+ neopixel::PixelArray array(DATA_PIN);
+
+ char greeting[] = "hola mundo ";
+
+ while (1) {
+ int r = 0;
+ int g = rand()%30;
+ int b = rand()%30;
+
+ if (rand()%10 < 3){
+ r = rand()%30;
+ g = 0;
+ b = 0;
+ }
+
+ iluminaTexto(greeting, array, r,g,b);
+ wait_ms(500);
+ }
+}
diff -r 000000000000 -r ecf0f187117c mbed.bld --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Mon Jan 18 15:10:52 2016 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/6f327212ef96 \ No newline at end of file