Diff: main.cpp

Revision:

0:ce3fa8a3840c

Child:

1:fc3efaef8625

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Sun Dec 08 18:56:02 2019 +0000
@@ -0,0 +1,192 @@
+#include "mbed.h"
+#include "uLCD_4DGL.h"
+#include "Speaker.h"
+
+AnalogIn light1(p19);
+AnalogIn light2(p18);
+DigitalIn button(p8);
+DigitalOut led(p26);
+PwmOut speaker(p25);
+
+DigitalOut mag2(p20);
+DigitalOut mag1(p21);
+Serial blue(p28,p27);
+BusOut myled(LED1,LED2,LED3,LED4);
+uLCD_4DGL uLCD(p9,p10,p11);
+Serial pc(USBTX, USBRX);
+typedef struct Locker {
+    int used;
+    int code;
+} Locker;
+
+struct Locker l1 = {0, 1234};
+struct Locker l2 = {0, 4321};
+void wait_loop() {
+    int j = 0;
+    for (int i = 0; i < 50000; i++) {
+     j++;
+    }
+}
+void fill() {
+    uLCD.filled_rectangle(0, 0, 128, 128, 0x000000);
+    uLCD.locate(0,0);
+}
+int read_code() {
+    char bnum=0;
+    int ans = 0;
+    int len = 0;
+    uLCD.printf("\nEnter code\n");
+    while(len < 8) {
+        if (blue.getc()=='!') {
+            if (blue.getc()=='B') { //button data packet
+                bnum = blue.getc(); //button number
+                myled = bnum - '0';
+                len++;
+                if (len % 2 == 1) {
+                    ans = ans * 10 + (bnum - '0');
+                    uLCD.printf("%d", bnum - '0');
+                }
+            }
+        }
+    }
+    fill();
+    wait(1);
+    return ans;
+}
+
+int read_which_locker() {
+    char bnum=0;
+    int ans = 0;
+    int len = 0;
+    uLCD.printf("\nEnter Locker");
+    while(len < 2) {
+        if (blue.getc()=='!') {
+            if (blue.getc()=='B') { //button data packet
+                bnum = blue.getc(); //button number
+                ans = bnum - '0';
+                fill();
+                uLCD.printf("%d",ans);
+                len++;
+            }
+        }
+    }
+    fill();
+    wait(1);
+    return ans;
+}
+
+int rent_or_open() {
+    char bnum=0;
+    int ans = 0;
+    int len = 0;
+    uLCD.printf("\n1.Rent a locker\n2.Unlock an locker");
+    while(len < 2) {
+        if (blue.getc()=='!') {
+            if (blue.getc()=='B') { //button data packet
+                bnum = blue.getc(); //button number
+                ans = bnum - '0';
+                uLCD.printf("%d",ans);
+                len++;
+            }
+        }
+    }
+    fill();
+    wait(1);
+    return ans;
+}
+
+void open_used() {    
+    int locker = read_which_locker();
+    wait_loop();
+    
+    if (locker == 1 && l1.used == 0) {
+        uLCD.printf("\nThe locker is empty");
+        wait(1);
+        return;
+    }
+    
+    if (locker == 2 && l2.used == 0) {
+        uLCD.printf("\nThe locker is empty");
+        wait(1);
+        return;
+    }
+    int code = read_code();
+    fill();    
+    if (locker == 1 && l1.code == code) {
+        uLCD.printf("\nLocker 1 is now open");
+        mag1 = 1;
+        int lock = 0;
+        while(light1.read() > .05 || lock == 0) {
+            lock = lock | button.read();
+        }
+        mag1 = 0;
+        l1.used = 0;
+    } else if (locker == 2 && l2.code == code) {
+        uLCD.printf("\nLocker 2 is now open");
+        mag2 = 1;
+        int lock = 0;
+        while(light2.read() > .01 || lock == 0) {
+            lock = lock | button.read();
+        }
+        mag2 = 0;
+        l2.used = 0;
+    } else {
+        uLCD.printf("\nInvlaid locker and code combination");
+        led = 1;
+        speaker = .5;
+        wait(.5);
+        led = 0;
+        speaker = 0;
+        wait(.5);
+        led = 1;
+        speaker = .5;
+        wait(.5);
+        led = 0;
+        speaker = 0;
+        wait(.5);
+        
+    }    
+}
+
+void rent_unused(){
+    if (l1.used == 0) {
+        uLCD.printf("\nPlease place item in locker 1, create a code, and close the door");
+        mag1 = 1;    
+        int code = read_code();
+        l1.code = code;
+        l1.used = 1;
+        mag1 = 0;
+        
+    } else if (l2.used == 0) {
+        uLCD.printf("\nPlease place item in locker 2, create a code, and close the door");
+        mag2 = 1;    
+        int code = read_code();
+        l2.code = code;
+        l2.used = 1;
+        mag2 = 0;
+        
+    } else {
+        uLCD.printf("\nSorry all lockers are taken");
+        wait(1);
+    }
+}
+
+int main() {
+    mag1 = 0;
+    mag2 = 0;
+    speaker.period(1.0/5000.0);
+    while(1){
+        uLCD.locate(0,0);
+        uLCD.printf("Welcome to\n our locker"); //Default Green on black text
+        int option = rent_or_open();
+        if (option == 1) {
+            rent_unused();
+        } else if (option == 2) {
+            open_used();
+        } else {
+            uLCD.printf("\nPlease enter valid option");
+        }
+        uLCD.reset();
+        
+    }
+}