Diff: main.cpp

Revision:

0:e5b7043f8e06

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Fri Mar 15 02:01:34 2013 +0000
@@ -0,0 +1,220 @@
+#include "mbed.h"
+#include "TextLCD.h"
+
+TextLCD lcd(p15, p16, p17, p18, p19, p20, TextLCD::LCD20x4); // rs, e, d4-d7
+PwmOut led(p25);
+Serial device(p9, p10);  // tx, rx
+DigitalIn Opt(p5);       // option button
+DigitalIn Sel(p6);       // select/tag button
+DigitalOut IRled(LED1);  // Blinks for serial input from the IR sensor
+DigitalOut tagled(LED2); // Blinks for a confirmed tag
+Timer timer;            // used to timestamp incoming tags
+int State;
+char Tags[500];
+float Tstamp[500];
+int TagsElem=0;
+char TaggerID=0;
+char MyTagID=0;
+char LCDText[][9]=
+   {"CHOOSE  ",
+    "ID      ",
+    "ABCDEFGH",
+    "IJKLMNOP",
+    "QRSTUVWX",
+    "YZ      ",
+    "TAGGED  ",
+    "00 TIMES",
+    "BY 0    ",};
+//int main() {
+    //lcd.printf("Hello World!\n");
+//}
+
+void callback() {
+    // Note: you need to actually read from the serial to clear the RX interrupt
+    IRled=1;
+    Tags[TagsElem] = device.getc();
+    Tstamp[TagsElem] = timer.read();
+    
+    if (Tags[TagsElem] != MyTagID)
+    {
+    TagsElem++;
+    }
+    IRled=0;    
+}
+
+int tagcount()
+{
+float LastTagTime=0;
+int counter=0;
+for (int i=0;i<=TagsElem-2;i++)
+{
+    if (TagsElem>2)
+    {
+        if ((Tags[i]==Tags[i+1]) && (Tags[i+1]==Tags[i+2]) && ('A'<=Tags[i]<='Z') && ((Tstamp[i+2]-Tstamp[i])<.25) && ((LastTagTime+.25)<Tstamp[i+2]))
+        {
+        TaggerID=Tags[i];
+        LastTagTime = Tstamp[i+2];
+        counter++;
+        }
+        
+        
+    }
+}
+return counter;
+}
+
+void scrnslct(char n)
+{
+int alpha;
+int row;
+int col;
+lcd.cls();
+    if (n=='0')
+        {
+        lcd.printf("%s\n%s",LCDText[0],LCDText[1]);
+        }
+    if (n=='1')
+        {
+        lcd.printf("%s\n%s",LCDText[6],LCDText[7]);
+        }
+    if (n=='2')
+        {
+        lcd.printf("%s\n%s",LCDText[6],LCDText[8]);
+        }
+    if ('A'<=n<='Z')
+        {
+        alpha=n-'A';
+        row=alpha/8;
+        col=alpha%8;
+        lcd.printf("%c",LCDText[2+row][col]);
+        }
+    else
+    lcd.printf("ERROR1");                   //ERROR1= No screen selected by program, error not caused by user
+}
+
+int State0()
+{
+    scrnslct('0');
+while(1)
+{
+    if (Opt==1)
+    {
+    wait(.25);
+    return 0;
+    }
+    if (Sel==1)
+    {
+    wait(.25);
+    return 1;
+    }
+}
+}
+
+int State1()
+{
+scrnslct('A');
+char c='A';
+while(1)
+{
+
+    if (Opt==1)
+    {
+    wait(.2);
+    
+        if (c=='Z')
+        {
+            c='A';
+        }
+        else
+        c++;
+        scrnslct(c);
+    }
+    if (Sel==1)
+    {
+    wait(.25);
+    MyTagID=c;
+    return 2;
+    }
+
+}
+}
+
+int State2()
+{
+timer.reset();
+TagsElem=0;
+memset(&Tags[0], '0', sizeof(Tags));
+int check=TagsElem;
+int c=tagcount();
+int compare=c;
+float timer1;
+int TagsOnes = 48;                  // 48 is the decimal value of the ASCII char '0'
+int TagsTens = 48;                  // a variable for the tens place and the ones place
+//LCDText[7][0]=TagsTens;
+//LCDText[7][1]=TagsOnes;
+scrnslct('1');
+timer.start();
+while (1)
+{
+    c=tagcount();
+    if(check != TagsElem)                              //only true if the IR sensor recieves data, probably a tag
+    {
+        if (compare != c)
+        {
+            tagled=1;
+            LCDText[8][3]=TaggerID;
+            scrnslct('2');
+            wait(2);
+            LCDText[7][0]=TagsTens+c/10;
+            LCDText[7][1]=TagsOnes+c%10;
+            scrnslct('1');
+            compare = c;
+            tagled=0;
+        }
+        check = TagsElem;
+    }
+    
+    if (Sel==1)
+    {
+        wait(.1);
+        timer1=timer.read();
+        while ((timer.read()-timer1)<.25)                         //sends out my tag constantly for the amount of seconds to the right of the "<"
+        {
+            device.putc(MyTagID);
+        }
+    }
+    if (Opt==1)
+    {
+        wait(.25);
+        return 0;
+    }
+    
+}
+}
+
+int main() {
+    device.attach(&callback);
+    //lcd.cls();
+    led.period_us(26.3);
+    led=.5;
+    device.baud(1200);
+    State=0;
+    while(1)
+    {   
+    
+        if (State==0)
+        {
+        State=State0();
+        }
+        
+        if (State==1)
+        {
+        State=State1();
+        }
+        
+        if (State==2)
+        {
+        State=State2();
+        }
+    }    
+}
\ No newline at end of file