LED CUBE TEAM / Mbed 2 deprecated MAtrix

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

main.cpp

Committer:
DaniusKalv
Date:
2014-11-02
Revision:
10:ee58d712c7fb
Parent:
9:ed7e8a6fc537
Child:
11:996c98ad9d73
Child:
12:a8364a98c38c

File content as of revision 10:ee58d712c7fb:

#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);
static char line[99], line_buffer[99];
static bool mode_buffer = 0;
static uint8_t interrupt_flag = 0;
int realTime;
void receive();

int main() {
    static bool m_mode;
    char buffer[4];
    bool dot;
    pc.baud(115200);
    bluetooth.baud(38400);
    void (*foo)() = &receive;
    bluetooth.attach(foo, Serial::RxIrq);
    generator.generate("ABCD");
    while(true){
        /*if (interrupt_flag == 1){
            m_mode = mode_buffer;
            memcpy(line, line_buffer, sizeof(line_buffer));
            interrupt_flag = 0;
        }*/
        pc.printf("\r\nMode = %i", m_mode);
        if (strlen(line) > 0 && m_mode == 0){  
            led = 0;  
            generator.generate(line);
            memset(line, 0, sizeof(line));
        }
        else if (strlen(line) > 0 && m_mode == 1){
            led = 0;
            memset(line, 0, sizeof(line));
        }
        if(m_mode == 1){
            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 display.show();
    }
}

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{
        pc.printf("\r\nClock mode");
        mode_buffer = true;
        bluetooth.gets(line, 10);
        realTime = atoi(line_buffer);
        set_time(realTime);
        pc.printf("\r\nTime : %i Mode : %i", realTime, mode_buffer);
    }  
    interrupt_flag = 1; 
}