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:
11:996c98ad9d73
Parent:
10:ee58d712c7fb
Child:
19:2b14139fb19f
--- a/main.cpp	Sun Nov 02 18:15:48 2014 +0000
+++ b/main.cpp	Sun Nov 02 18:26:37 2014 +0000
@@ -8,45 +8,21 @@
 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;
+char line[99];
 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");
+    bluetooth.attach(&receive, Serial::RxIrq);
+    generator.generate("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz");
     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){  
+        if (strlen(line) > 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();
+        display.show();
     }
 }
 
@@ -55,22 +31,10 @@
     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));
+    do{ 
+        line[j] = bluetooth.getc();
+        j++;
+        wait(0.0004);       
     }
-    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; 
+    while(bluetooth.readable() && (j < i) && (j < 99));
 }
\ No newline at end of file