Diff: main.cpp

Revision:

0:36264f703f1c

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Wed Jun 29 13:20:33 2011 +0000
@@ -0,0 +1,209 @@
+#include "mbed.h"
+#include "Servo.h"
+#include "TextLCD.h"
+#include "DebouncedIn.h"
+
+TextLCD lcd(p15, p16, p17, p18, p19, p20); // rs, e, d4-d7
+DebouncedIn setbutton(p5);
+DebouncedIn gobutton(p6);
+Servo myservo(p21);
+DigitalOut leda(LED1);
+DigitalOut ledb(LED2);
+DigitalOut ledc(LED3);
+DigitalOut ledd(LED4);
+Timer t;
+Timer t2;
+
+int set();
+int dip();
+int set (int currentstate);
+int displaystate(int currentstate);
+int maketea(int currentstate);
+int dipping();
+int alert();
+int alertoff();
+
+int main() {
+    int state;
+    state = 1;
+    myservo = 1;
+    lcd.cls();
+    lcd.printf("Start?\n");
+    while(1) {
+       if (setbutton.rising()) {
+            state = set(state);
+        }
+        else if (gobutton.rising()) {
+            maketea(state);
+        }       
+    }
+}
+
+int set(int currentstate) { //For setting which mode to use
+    t.start(); //Inactivity timer
+    lcd.cls();
+    displaystate(currentstate);
+    while (gobutton != 1 and t < 10) {
+        if (setbutton.rising()) {
+            currentstate = currentstate + 1; //Advances state
+            if (currentstate > 9) { //Loops back to start
+                currentstate = 1;
+            }
+            lcd.cls();
+            displaystate(currentstate); //Update current state
+            wait(0.25); //Debounce
+            t.reset();
+            t.start(); //Reset inactivity timer
+        }
+    }
+    lcd.cls();
+    lcd.printf("Start?\n"); //Reset screen
+    return currentstate;
+}
+
+int displaystate(int currentstate) { //Displays current setting
+    if (currentstate == 1) {
+        lcd.printf("1 min - dip\n");
+    }
+    else if (currentstate == 2) {
+        lcd.printf("2 mins - dip\n");
+    }
+    else if (currentstate == 3) {
+        lcd.printf("3 mins - dip\n");
+    }
+    else if (currentstate == 4) {
+        lcd.printf("1 min - no dip\n");
+    }
+    else if (currentstate == 5) {
+        lcd.printf("2 mins - no dip\n");
+    }
+    else if (currentstate == 6) {
+        lcd.printf("3 mins - no dip\n");
+    }
+    else if (currentstate == 7) {
+        lcd.printf("4 mins - no dip\n");
+    }
+    else if (currentstate == 8) {
+        lcd.printf("5 mins - no dip\n");
+    }
+    else if (currentstate == 9) {
+        lcd.printf("QTEST\n");
+    }
+    return 0;
+}
+
+int maketea(int currentstate) { //Main teamaking routine
+    lcd.cls();
+    lcd.printf("Brewing...\n");
+    displaystate(currentstate); //Display status
+    int time;
+    int dip;
+    if (currentstate == 1) { //Initialise time and dipping status
+        time = 60;
+        dip = 1;
+    }
+    else if (currentstate == 2) {
+        time = 120;
+        dip = 1;
+    }
+    else if (currentstate == 3) {
+        time = 180;
+        dip = 1;
+    }
+    else if (currentstate == 4) {
+        time = 60;
+        dip = 0;
+    }
+    else if (currentstate == 5) {
+        time = 120;
+        dip = 0;
+    }
+    else if (currentstate == 6) {
+        time = 180;
+        dip = 0;
+    }
+    else if (currentstate == 7) {
+        time = 240;
+        dip = 0;
+    }
+    else if (currentstate == 8) {
+        time = 300;
+        dip = 0;
+    }
+    else if (currentstate == 9) {
+        time = 10;
+        dip = 0;
+    }
+    myservo = 0; //Dunk teabag
+    t.start(); //Start tea timer
+    while (t < time) { //While there's still time left
+        if (dip == 1) { //If dipping, dip teabag
+            wait(1);
+            dipping();
+        }
+        if (gobutton.rising()) { //If cancelling
+            lcd.cls();
+            lcd.printf("Press again to\n");
+            lcd.printf("stop brewing.\n");
+            t2.start(); //Start (secondary) inactivity timer
+            while (t2 <= 5) {
+                if (gobutton.rising()) {
+                    time = 0; //Resets time to run to 0, thus pulling out of main while loop
+                    break; //Pulls out of this loop
+                }
+            }
+            t2.reset();
+            lcd.cls();
+            lcd.printf("Brewing...\n");
+            displaystate(currentstate); //Reset screen to brewing
+        }            
+    }
+    t.reset();
+    myservo = 1;
+    lcd.cls();
+    lcd.printf("Done!\n");
+    lcd.printf("Reset?\n");
+    t.start();
+    while ((!setbutton.rising()) && (!gobutton.rising())) { //If not reset in 90 seconds, alert
+        if (t > 90) {
+            alert();
+        }
+    }
+    alertoff();
+    lcd.cls();
+    lcd.printf("Start?\n"); //Reset
+    wait(1);
+    return 0;
+}
+
+int dipping() { //Dipping routine
+    myservo = 0.5;
+    wait(1);
+    myservo = 0;
+    return 0;
+}    
+
+int alert() { //Alert using on-board LEDs
+    int y;
+    for ( y = 0; y != 1; y++ ) {
+        leda = 1;
+        ledb = 0;
+        ledc = 1;
+        ledd = 0;
+        wait(0.2);
+        leda = 0;
+        ledb = 1;
+        ledc = 0;
+        ledd = 1;
+        wait(0.2);
+    }
+    return 0;
+}
+
+int alertoff() { //Resets on-board LEDs to 0
+    leda = 0;
+    ledb = 0;
+    ledc = 0;
+    ledd = 0;
+    return 0;
+} 
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