Revision 1:25bc0044cb07, committed 2018-05-01

Comitter:

lalexander37

Date:

Tue May 01 16:00:00 2018 +0000

Parent:

0:e09703934ff4

Commit message:

CookieJarDemo

Changed in this revision

diff -r e09703934ff4 -r 25bc0044cb07 FSR.lib
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/FSR.lib	Tue May 01 16:00:00 2018 +0000
@@ -0,0 +1,1 @@
+https://os.mbed.com/users/lalexander37/code/FSRCookieJar/#78279e66b1a0

diff -r e09703934ff4 -r 25bc0044cb07 main.cpp
--- a/main.cpp	Wed Mar 16 01:49:13 2011 +0000
+++ b/main.cpp	Tue May 01 16:00:00 2018 +0000
@@ -20,16 +20,23 @@
 THE SOFTWARE.
 */
 
+
 #include <mbed.h>
 #include <string>
 #include <list>
+#include <sstream>
+#include <math.h> 
+#include <mpr121.h>
+#include "FSR.h"
 
-#include <mpr121.h>
+
+using namespace std;
 
 DigitalOut led1(LED1);
 DigitalOut led2(LED2);
 DigitalOut led3(LED3);
 DigitalOut led4(LED4);
+Serial dev(p28,p27);
 
 // Create the interrupt receiver object on pin 26
 InterruptIn interrupt(p26);
@@ -44,82 +51,172 @@
 // constructor(i2c object, i2c address of the mpr121)
 Mpr121 mpr121(&i2c, Mpr121::ADD_VSS);
 
-void fallInterrupt() {
-    int key_code=0;
-    int i=0;
-    int value=mpr121.read(0x00);
-    value +=mpr121.read(0x01)<<8;
-    // LED demo mod by J. Hamblen
-    //pc.printf("MPR value: %x \r\n", value);
-    i=0;
-    // puts key number out to LEDs for demo
-    for (i=0; i<12; i++) {
-        if (((value>>i)&0x01)==1) key_code=i+1;
-        }
-    led4=key_code & 0x01;
-    led3=(key_code>>1) & 0x01;
-    led2=(key_code>>2) & 0x01;
-    led1=(key_code>>3) & 0x01;
+//FSR handles the weight sensor
+FSR fsr(p20, 10);
+int j = 0;
+float weight_array[20];
+float average = 0.0;
+//float startWeight = 0.0;
+
+DigitalOut ctrl(p8);
+void lid(int);
+int count = 0;
+
+int testKey [4] = {};
+char testPassword [9] = {};
+
+// -------- decalre correct passwords ----------//
+int realKey[4] = {1,2,2,4};
+char realPassword [9]= {'G', 'e', 'o', 'r', 'g', 'e', 'P', '.', '\0'};
+ 
+int countToo = 0;
+
+void dev_recv()
+{
+    int index = 0;
+    while(dev.readable()) {
+        testPassword[index]=dev.getc();
+        pc.putc(testPassword[index]);
+        index++;
+        wait(0.05);
+    }
+    pc.printf("\n\r");
 }
-int main() {
-
-    pc.printf("\nHello from the mbed & mpr121\n\r");
-
-    unsigned char dataArray[2];
-    int key;
-    int count = 0;
-
-    pc.printf("Test 1: read a value: \r\n");
-    dataArray[0] = mpr121.read(AFE_CFG);
-    pc.printf("Read value=%x\r\n\n",dataArray[0]);
-
-    pc.printf("Test 2: read a value: \r\n");
-    dataArray[0] = mpr121.read(0x5d);
-    pc.printf("Read value=%x\r\n\n",dataArray[0]);
+ 
+void pc_recv()
+{
+    led4 = !led4;
+    while(pc.readable()) {
+        dev.putc(pc.getc());
+    }
+}
 
-    pc.printf("Test 3: write & read a value: \r\n");
-    mpr121.read(ELE0_T);
-    mpr121.write(ELE0_T,0x22);
-    dataArray[0] = mpr121.read(ELE0_T);
-    pc.printf("Read value=%x\r\n\n",dataArray[0]);
+void lid(int time) {
+    ctrl = 1;
+    wait(time);
+    ctrl = 0;
+}
+
+void open() {
+    ctrl = 1;
+}
 
-    pc.printf("Test 4: Write many values: \r\n");
-    unsigned char data[] = {0x1,0x3,0x5,0x9,0x15,0x25,0x41};
-    mpr121.writeMany(0x42,data,7);
-
-    // Now read them back ..
-    key = 0x42;
-    count = 0;
-    while (count < 7) {
-        char result = mpr121.read(key);
-        key++;
-        count++;
-        pc.printf("Read value: '%x'=%x\n\r",key,result);
+void close() {
+    ctrl = 0;
+}
+float weight_sensor() {
+    wait(1);
+    float h = fsr.readFSRResistance();
+    float slope = (4 - 2) / (log10(6.2) - log10(0.25));
+    float pepsiSux = log10(h);
+    float cocaCola = pow(10, ((log10(6.2) - pepsiSux) * slope + 2));
+    cocaCola = 453*cocaCola;
+    wait(0.5);
+    
+    if (cocaCola-30 <= 0) {
+        return 0;
+    } else {
+        return cocaCola-30;
     }
+}
+ 
+int main() {
+    pc.baud(9600);
+    dev.baud(9600);
+ 
+    pc.attach(&pc_recv, Serial::RxIrq);
+    dev.attach(&dev_recv, Serial::RxIrq);
+    
+    int counter = 0;
 
-    pc.printf("Test 5: Read Electrodes:\r\n");
-    key = ELE0_T;
-    count = 0;
-    while (count < 24) {
-        char result = mpr121.read(key);
-        pc.printf("Read key:%x value:%x\n\r",key,result);
-        key++;
-        count++;
-    }
-    pc.printf("--------- \r\n\n");
-
-    // mpr121.setProximityMode(true);
-
-    pc.printf("ELE_CFG=%x", mpr121.read(ELE_CFG));
-
-    interrupt.fall(&fallInterrupt);
-    interrupt.mode(PullUp);
+    //pc.printf("\nHello from the mbed & mpr121\n\r");
+    
+    
+    bool keyFlag = 0;
+    bool passFlag = 0;
+    
+    //startWeight = weight_sensor();
 
     while (1) {
-        wait(5);
-        pc.printf(".");
+        wait(1);
+        while (keyFlag == 0 & passFlag == 0){
+            //while(mpr121.read(0x000)==NULL){
+            //    dev.printf("Current cookies: %d grams\n\r", (int)weight_sensor());
+            //    dev.printf("Enter the key code into the keypad... \n\r ");
+            //}
+            //pc.printf("got here!");
+            //wait(1);
+            while (counter<4) {
+                //printf("read: %d \n\r", counter);
+                while(mpr121.read(0x000)==NULL){}
+                int value=mpr121.read(0x000);
+                double lauren = log((double)value);
+                lauren = lauren/log(2.0);
+                testKey[counter] = (int)lauren;
+                dev.printf("You entered: %d\n\r", testKey[counter]);
+                while(mpr121.read(0x000)!=NULL){}
+                counter++;
+            }
+            if(testKey[0] == realKey[0] 
+            & testKey[1] == realKey[1]
+            & testKey[2] == realKey[2]
+            & testKey[3] == realKey[3]) {
+                keyFlag = 1;
+                dev.printf("lauren: waiting for 2 factor authentication\n\r");
+            } else {
+                counter = 0;
+                dev.printf("Please try again\n\r");
+            }
+        }
+        while (keyFlag == 1 & passFlag == 0) {
+            if(
+            testPassword[0] == realPassword[0]
+            & testPassword[1] == realPassword[1]
+            & testPassword[2] == realPassword[2]
+            & testPassword[3] == realPassword[3]
+            & testPassword[4] == realPassword[4]
+            & testPassword[5] == realPassword[5]
+            & testPassword[6] == realPassword[6]
+            & testPassword[7] == realPassword[7]){
+            passFlag = 1;
+            dev.printf("Cookie jar is open, press any key to close\n\r");
+            }
+            else
+            {
+                //pc.printf("\n\rPlease enter a correct password");
+                dev.printf("Please enter a correct password \n\r");
+                wait(1.5);
+            }
+        }
+        
+        while (keyFlag == 1 & passFlag == 1) {
+            pc.printf("\n\rUnlocked \n\rPress any button to lock");
+            //print weight sensor to UART
+            //open the servos
+            open();
+            while(mpr121.read(0x000)==NULL){
+                dev.printf("current weight is about -- %d  -- grams\n\r", (int)weight_sensor());
+                wait(0.5);
+            }
+            close();
+            
+            keyFlag = 0;
+            passFlag = 0;
+            testKey[0] = 0; 
+            testKey[1] = 0;
+            testKey[2] = 0;
+            testKey[3] = 0;
+            testPassword[0] = 0;
+            testPassword[1] = 0;
+            testPassword[2] = 0;
+            testPassword[3] = 0;
+            testPassword[4] = 0;
+            testPassword[5] = 0;
+            testPassword[6] = 0;
+            testPassword[7] = 0;
+        }
+        wait(1);
     }
 }
 
 
-