LED CUBE TEAM
Blue LED matrix (8x16) program. Gets text string through bluetooth and displays it on led matrix. Also has a clock function- get system time from a phone through bluetooth and enters clock mode. In clock mode it acts as a clock showing hours and minutes and blinking led every second. Clock mode can be broken if a text string is received through bluetooth.
Dependencies: mbed
Revision 20:8055a5b5dba0, committed 2014-11-24
- Comitter:
- DaniusKalv
- Date:
- Mon Nov 24 15:02:37 2014 +0000
- Parent:
- 19:2b14139fb19f
- Child:
- 21:db8dadfd7d2a
- Commit message:
- Branches completely merged
Changed in this revision
--- a/main.cpp Wed Nov 19 09:19:28 2014 +0000
+++ b/main.cpp Mon Nov 24 15:02:37 2014 +0000
@@ -50,6 +50,7 @@
display.clock(buffer, dot);
}
else if (interrupt_flag == 0) display.show();
+ //wait(0.1);
}
}
@@ -58,10 +59,14 @@
int i, j = 0;
i = 10 * (bluetooth.getc() - 48);
i += bluetooth.getc() - 48;
- do{
- line[j] = bluetooth.getc();
- j++;
- wait(0.0004);
+ if(i > 0){
+ mode_buffer = false;
+ do{
+ line_buffer[j] = bluetooth.getc();
+ j++;
+ wait(0.0004);
+ }
+ while(bluetooth.readable() && (j < i) && (j < 99));
}
else{
mode_buffer = true;
--- a/main.cpp.orig Wed Nov 19 09:19:28 2014 +0000
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,84 +0,0 @@
-#include "mbed.h"
-#include "matrix.h"
-#include "text.h"
-#include <string>
-
-text generator;
-matrix display(p13, p12, p11, p14, p15, p17, p16);
-DigitalOut led(LED1);
-Serial pc(USBTX, USBRX);
-Serial bluetooth(p28,p27);
-char line[99];
-char line_buffer[99];
-volatile bool mode_buffer = 0;
-volatile uint8_t interrupt_flag = 0;
-volatile int realTime;
-void receive();
-
-int main() {
- bool m_mode = 0;
- char buffer[4];
- bool dot;
- pc.baud(115200);
- bluetooth.baud(38400);
- void (*foo)() = &receive;
- bluetooth.attach(foo, Serial::RxIrq);
- generator.generate("Hello world!");
- while(true){
- if (interrupt_flag == 1){
- pc.printf("\r\nIn interrupt flag!");
- m_mode = mode_buffer;
- memcpy(line, line_buffer, sizeof(line_buffer));
- memset(line_buffer, 0, sizeof(line_buffer));
- interrupt_flag = 0;
- }
- pc.printf("\r\nMode = %i", m_mode);
- if (strlen(line) > 0 && m_mode == 0 && interrupt_flag == 0){
- led = 0;
- generator.generate(line);
- memset(line, 0, sizeof(line));
- }
- else if (strlen(line) > 0 && m_mode == 1 && interrupt_flag == 0){
- led = 0;
- memset(line, 0, sizeof(line));
- }
- if(m_mode == 1 && interrupt_flag == 0){
- time_t seconds = time(NULL);
- strftime(buffer, 4, "%H%M", localtime(&seconds));
- if ((seconds % 2) == 0) dot = true;
- else dot = false;
- display.clock(buffer, dot);
- }
- else if (interrupt_flag == 0) display.show();
- //wait(0.1);
- }
-}
-
-void receive(){
- led = 1;
- int i, j = 0;
- i = 10 * (bluetooth.getc() - 48);
- i += bluetooth.getc() - 48;
- if(i > 0){
- mode_buffer = false;
- do{
- line_buffer[j] = bluetooth.getc();
- j++;
- wait(0.0004);
- }
- while(bluetooth.readable() && (j < i) && (j < 99));
- }
- else{
- mode_buffer = true;
- for (int i = 0; i < 10; i++){
- line_buffer[i] = bluetooth.getc();
- wait(0.0004);
- }
- realTime = atoi(line_buffer);
- set_time(realTime);
- }
- while (bluetooth.readable()){
- bluetooth.getc();
- }
- interrupt_flag = 1;
-}
\ No newline at end of file
--- a/matrix.cpp.orig Wed Nov 19 09:19:28 2014 +0000
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,135 +0,0 @@
-#include "matrix.h"
-#include "numbers.h"
-
-matrix::matrix(PinName _in1, PinName _in2, PinName _in3, PinName _clr,
-PinName _clr1, PinName _clk, PinName _clk1): local("local"), in1(_in1), in2(_in2),
-in3(_in3), clr(_clr), clr1(_clr1), clk(_clk), clk1(_clk1), pc(USBTX, USBRX){
-};
-
-void matrix::show(){
- char temp[8];
- fp = fopen("/local/out.txt", "r");
- fscanf(fp, "%i", &length);
- for (int i = 0; i < 16; i++){
- fscanf(fp, "%s", temp);
- for (int j = 0; j < 8; j++){
- display[7 - j][i] = temp[j] - 48;
- }
- }
- for (int i = 15; i < length; i++){
- for (int j = 0; j < 8; j++){
- multiplex();
- clear();
- }
- for (int g = 0; g < 15; g++){
- for (int h = 0; h < 8; h++){
- display[h][g] = display[h][g + 1];
- }
- }
- fscanf(fp, "%s", temp);
- for (int j = 0; j < 8; j++){
- display[j][15] = temp[7 - j] - 48;
- }
- }
- fclose(fp);
-}
-
-void matrix::clear(){
- in1 = 1;
- in2 = 0;
- in3 = 0;
- clk = 0;
- clk1 = 0;
- clr = 0;
- clr1 = 0;
- clr = 1;
- clr1 = 1;
-}
-
-void matrix::multiplex(){
- int a[8] = {0, 1, 1, 1, 1, 1, 1, 1};
- clear();
- for (int i = 0; i < 8; i++){
- clear();
- for (int g = 0; g < 8; g++){
- in1 = a[g];
- //pc.printf("%i", a[g]);
- clk = 1;
- //wait(del);
- clk = 0;
- //wait(del);
- }
- //pc.printf("\r\n");
- for (int j = 7; j > (-1); j--){
- in3 = display[i][j];
- in2 = display[i][j + 8];
- //pc.printf("%i", show[i][j]);
- clk1 = 1;
- //wait(del);
- clk1 = 0;
- //wait(del);
- }
- wait(0.001);
- //pc.printf("\r\n");
- a[i] = 1;
- a[i + 1] = 0;
- }
-}
-
-void matrix::clock(char *buffer, bool dot){
- //pc.printf("\r\nClock %s", buffer);
-
- memset(display, 0, sizeof(display));
-
- int digit = int(buffer[0]) - 48;
- //pc.printf("\r\nDigit= %i", digit);
-
- for (int i = 0; i < 3; i++){
- for (int j = 0; j < 8; j++){
- display[j][i] = ((number[i][digit] & (1 << (7 - j))) >> (7 - j));
- };
- };
-
- digit = int(buffer[1]) - 48;
- //pc.printf("\r\nDigit= %i", digit);
-
- for (int i = 4; i < 7; i++){
- for (int j = 0; j < 8; j++){
- display[j][i] = ((number[i - 4][digit] & (1 << (7 - j))) >> (7 - j));
- };
- };
-
- digit = int(buffer[2]) - 48;
- //pc.printf("\r\nDigit= %i", digit);
-
- for (int i = 9; i < 12; i++){
- for (int j = 0; j < 8; j++){
- display[j][i] = ((number[i - 9][digit] & (1 << (7 - j))) >> (7 - j));
- };
- };
-
- digit = int(buffer[3]) - 48;
- //pc.printf("\r\nDigit= %i", digit);
-
- for (int i = 13; i < 16; i++){
- for (int j = 0; j < 8; j++){
- display[j][i] = ((number[i - 13][digit] & (1 << (7 - j))) >> (7 - j));
- };
- };
-
- if (dot) display[6][7] = 1;
- //see();
- for (int i = 0; i < 10; i++) multiplex();
- //while (!pc.getc());
-};
-
-void matrix::see(){
- pc.printf("\r\n");
- for (int i = 0; i < 8; i++){
- for (int j = 0; j < 16 ; j++){
- pc.printf("%i ", display[i][j]);
- }
- pc.printf("\r\n");
- }
- pc.printf("\r\n");
-}
\ No newline at end of file
--- a/matrix.h.orig Wed Nov 19 09:19:28 2014 +0000
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,31 +0,0 @@
-#ifndef MBED_MATRIX_H_
-#define MBED_MATRIX_H_
-
-#include "mbed.h"
-
-void led_thread(void const *args);
-
-class matrix{
-private:
- int length;
- int display[8][16];
- Serial pc;
- LocalFileSystem local;
- FILE *fp;
- DigitalOut in3;
- DigitalOut in2;
- DigitalOut in1;
- DigitalOut clr1;
- DigitalOut clr;
- DigitalOut clk1;
- DigitalOut clk;
-public:
- matrix(PinName _in1, PinName _in2, PinName _in3, PinName _clr, PinName _clr1, PinName _clk, PinName _clk1);
- void show();
- void clear();
- void multiplex();
- void clock(char *buffer, bool dot);
- void see();
-};
-
-#endif /* matrix_H_ */
\ No newline at end of file