Payman Shabbaki / Mbed 2 deprecated 4180Project

4180 Final Project

Dependencies:   4DGL-uLCD-SE mbed Servo

main.cpp@12:22444d5f5920, 2016-04-21 (annotated)

Committer:
pshabbaki3
Date:
Thu Apr 21 21:42:24 2016 +0000
Revision:
12:22444d5f5920
Parent:
11:1ca1f07896b0
Child:
13:88d8408f6e60
Added interrupt to read data from serial port

Who changed what in which revision?

UserRevisionLine numberNew contents of line
pshabbaki3 0:5d35ff3dc9a5 1 #include "mbed.h"
ecarrick 6:50a82641d07b 2 #include "wifi.h"
pshabbaki3 0:5d35ff3dc9a5 3 #include <string>
pshabbaki3 0:5d35ff3dc9a5 4 #include <vector>
pshabbaki3 0:5d35ff3dc9a5 5 #include <iostream>
pshabbaki3 0:5d35ff3dc9a5 6 #include <sstream>
pshabbaki3 0:5d35ff3dc9a5 7 #include <iterator>
pshabbaki3 0:5d35ff3dc9a5 8 #include <stdio.h>
pshabbaki3 0:5d35ff3dc9a5 9 #include <ctype.h>
pshabbaki3 0:5d35ff3dc9a5 10 #include "uLCD_4DGL.h"
pshabbaki3 0:5d35ff3dc9a5 11
mbedTrent 7:52b51f507ee5 12 #include <list>
mbedTrent 7:52b51f507ee5 13 #include <mpr121.h>
mbedTrent 7:52b51f507ee5 14
ecarrick 1:dd048edb2716 15 LocalFileSystem local("local");
pshabbaki3 0:5d35ff3dc9a5 16
pshabbaki3 0:5d35ff3dc9a5 17 DigitalOut myled(LED1);
pshabbaki3 0:5d35ff3dc9a5 18 Serial pc(USBTX,USBRX);
pshabbaki3 0:5d35ff3dc9a5 19 uLCD_4DGL lcd(p28,p27,p30); // serial tx, serial rx, reset pin;
pshabbaki3 0:5d35ff3dc9a5 20
mbedTrent 7:52b51f507ee5 21 // Create the interrupt receiver object on pin 26
mbedTrent 7:52b51f507ee5 22 InterruptIn interrupt(p26);
mbedTrent 7:52b51f507ee5 23
mbedTrent 7:52b51f507ee5 24 // Setup the i2c bus on pins 28 and 27
mbedTrent 7:52b51f507ee5 25 I2C i2c(p9, p10);
mbedTrent 7:52b51f507ee5 26
mbedTrent 7:52b51f507ee5 27 // Setup the Mpr121:
mbedTrent 7:52b51f507ee5 28 // constructor(i2c object, i2c address of the mpr121)
mbedTrent 7:52b51f507ee5 29 Mpr121 mpr121(&i2c, Mpr121::ADD_VSS);
mbedTrent 7:52b51f507ee5 30
pshabbaki3 0:5d35ff3dc9a5 31
pshabbaki3 0:5d35ff3dc9a5 32 vector<char> im;
pshabbaki3 4:e6b198a22216 33 vector<char> pass;
pshabbaki3 0:5d35ff3dc9a5 34 vector<char> name;
pshabbaki3 0:5d35ff3dc9a5 35 vector<char> final;
pshabbaki3 11:1ca1f07896b0 36 vector<char> ans;
pshabbaki3 0:5d35ff3dc9a5 37
mbedTrent 10:cf127bd9b857 38 vector<char> password;
mbedTrent 7:52b51f507ee5 39 int index=0;
mbedTrent 10:cf127bd9b857 40 int maxLength = 18; //random length chosen
mbedTrent 10:cf127bd9b857 41 int minLength = 5; //random length chosen
mbedTrent 10:cf127bd9b857 42
pshabbaki3 12:22444d5f5920 43
mbedTrent 10:cf127bd9b857 44 //function for debugging
pshabbaki3 12:22444d5f5920 45 void printPW()
pshabbaki3 12:22444d5f5920 46 {
mbedTrent 10:cf127bd9b857 47 for (int i=0; i<password.size(); i++) {
mbedTrent 10:cf127bd9b857 48 pc.printf("%d", int(password[i]));
mbedTrent 10:cf127bd9b857 49 }
mbedTrent 10:cf127bd9b857 50 pc.printf("\r\n");
mbedTrent 10:cf127bd9b857 51 }
mbedTrent 7:52b51f507ee5 52
pshabbaki3 9:11a6f6c8c54b 53 void fallInterrupt()
pshabbaki3 9:11a6f6c8c54b 54 {
mbedTrent 7:52b51f507ee5 55 int key_code=0;
mbedTrent 7:52b51f507ee5 56 int i=0;
mbedTrent 7:52b51f507ee5 57 int value=mpr121.read(0x00);
mbedTrent 7:52b51f507ee5 58 value +=mpr121.read(0x01)<<8;
mbedTrent 10:cf127bd9b857 59
mbedTrent 10:cf127bd9b857 60 //checks every key for press
mbedTrent 7:52b51f507ee5 61 for (i=0; i<=11; i++) {
pshabbaki3 12:22444d5f5920 62
mbedTrent 10:cf127bd9b857 63 //if key 10 (clr) is pressed, clear the last value on the vector will be popped off
mbedTrent 10:cf127bd9b857 64 if ((((value>>i)&0x01)==1)&&(i==10)) {
mbedTrent 10:cf127bd9b857 65 if (!password.empty()) {
mbedTrent 10:cf127bd9b857 66 password.pop_back(); //pop off last value on the vector
mbedTrent 10:cf127bd9b857 67 printPW();//for debugging
mbedTrent 10:cf127bd9b857 68 pc.printf("container size: %d\r\n", password.size());//for debugging
mbedTrent 10:cf127bd9b857 69 }
mbedTrent 10:cf127bd9b857 70 }
pshabbaki3 12:22444d5f5920 71
mbedTrent 10:cf127bd9b857 72 //if key 11 (ENTER) is pressed, the password will be submitted IF it is long enough
mbedTrent 10:cf127bd9b857 73 else if ((((value>>i)&0x01)==1)&&(i==11)) {
pshabbaki3 12:22444d5f5920 74
mbedTrent 10:cf127bd9b857 75 //if the password is long enough, check passwords, and clear vector.
pshabbaki3 11:1ca1f07896b0 76 if (password.size() > minLength) { // --------- password.size() == 6 -------------- PAYMAN
pshabbaki3 12:22444d5f5920 77 ans = password; // ------checkResult() , passing password to ans (vector used in checkResult() ------ PAYMAN
mbedTrent 10:cf127bd9b857 78 //CALL checkResult() FUNCTION, OR SET A FLAG INDICATING THAT PASSWORD IS COMPLETE AND AVAILABLE TO BE CHECKED!
mbedTrent 10:cf127bd9b857 79 password.clear(); //only use this if the checkResult is called above. If a flag is set, do not call this here - it should be called from within the checkResult function!
mbedTrent 10:cf127bd9b857 80 }
pshabbaki3 12:22444d5f5920 81
mbedTrent 10:cf127bd9b857 82 else {
mbedTrent 10:cf127bd9b857 83 pc.printf("The password must be at least %d characters long\r\n", minLength);
mbedTrent 10:cf127bd9b857 84 }
pshabbaki3 12:22444d5f5920 85 }
pshabbaki3 12:22444d5f5920 86
mbedTrent 10:cf127bd9b857 87 //if keys 0 through 9 are pressed
mbedTrent 10:cf127bd9b857 88 else if (((value>>i)&0x01)==1) {
mbedTrent 7:52b51f507ee5 89
mbedTrent 10:cf127bd9b857 90 //if max pw length has not been reached, push onto password vector
mbedTrent 10:cf127bd9b857 91 if (password.size() < maxLength) {
mbedTrent 7:52b51f507ee5 92 key_code=i;
mbedTrent 10:cf127bd9b857 93 password.push_back((char)key_code);
mbedTrent 10:cf127bd9b857 94 printPW(); //for debugging
pshabbaki3 12:22444d5f5920 95 }
pshabbaki3 12:22444d5f5920 96
mbedTrent 10:cf127bd9b857 97 //if max password length has been reached
mbedTrent 10:cf127bd9b857 98 else {
pshabbaki3 12:22444d5f5920 99 pc.printf("Maximum password length reached.\r\n");
mbedTrent 7:52b51f507ee5 100 }
mbedTrent 7:52b51f507ee5 101 }
mbedTrent 7:52b51f507ee5 102 }
mbedTrent 7:52b51f507ee5 103 }
mbedTrent 7:52b51f507ee5 104
pshabbaki3 9:11a6f6c8c54b 105 void save_to_file()
pshabbaki3 9:11a6f6c8c54b 106 {
ecarrick 5:a2fbe5bd2be0 107 FILE * fp = fopen("/local/users.txt", "w");
pshabbaki3 9:11a6f6c8c54b 108 if(fp != NULL) {
pshabbaki3 9:11a6f6c8c54b 109 for(unsigned i=0; i< im.size(); i++) {
ecarrick 6:50a82641d07b 110 fprintf(fp,"%c",im[i]);
ecarrick 5:a2fbe5bd2be0 111 }
ecarrick 5:a2fbe5bd2be0 112 }
ecarrick 5:a2fbe5bd2be0 113 fclose(fp);
ecarrick 5:a2fbe5bd2be0 114 }
ecarrick 5:a2fbe5bd2be0 115
pshabbaki3 9:11a6f6c8c54b 116 void load_from_file()
pshabbaki3 9:11a6f6c8c54b 117 {
ecarrick 5:a2fbe5bd2be0 118 FILE * fp = fopen("/local/users.txt", "r");
pshabbaki3 9:11a6f6c8c54b 119 if(fp != NULL) {
ecarrick 5:a2fbe5bd2be0 120 im.clear();
pshabbaki3 9:11a6f6c8c54b 121 do {
ecarrick 6:50a82641d07b 122 im.push_back(fgetc(fp));
pshabbaki3 9:11a6f6c8c54b 123 } while(im.back() != '#');
ecarrick 5:a2fbe5bd2be0 124 }
ecarrick 5:a2fbe5bd2be0 125 fclose(fp);
ecarrick 5:a2fbe5bd2be0 126 }
pshabbaki3 0:5d35ff3dc9a5 127
pshabbaki3 0:5d35ff3dc9a5 128 int i = 0;
pshabbaki3 0:5d35ff3dc9a5 129
pshabbaki3 4:e6b198a22216 130 void checkResult(vector<char> pass, vector<char> name)
pshabbaki3 0:5d35ff3dc9a5 131 {
pshabbaki3 0:5d35ff3dc9a5 132 // This function will check the keypad values and check if the passcode exists or not
pshabbaki3 0:5d35ff3dc9a5 133
pshabbaki3 11:1ca1f07896b0 134 // vector<char> ans(password.size()); //This vector should be the values coming from keypad
pshabbaki3 11:1ca1f07896b0 135 //ans = password; // password from fallInterrupt function
pshabbaki3 12:22444d5f5920 136
pshabbaki3 12:22444d5f5920 137
pshabbaki3 4:e6b198a22216 138 if (pass.size()==6) {
pshabbaki3 0:5d35ff3dc9a5 139 i++; //use "i" to find which person logged in.
pshabbaki3 4:e6b198a22216 140 if (ans == pass) {
pshabbaki3 0:5d35ff3dc9a5 141 // pc.printf("Found");
pshabbaki3 0:5d35ff3dc9a5 142 final = name;
pshabbaki3 4:e6b198a22216 143 final.insert(name.end(),pass.begin(),pass.end());
pshabbaki3 0:5d35ff3dc9a5 144
pshabbaki3 0:5d35ff3dc9a5 145 } else {
pshabbaki3 0:5d35ff3dc9a5 146 // pc.printf("not found");
pshabbaki3 4:e6b198a22216 147 //lcd.printf("\nnot found\n");
pshabbaki3 0:5d35ff3dc9a5 148 final.clear();
pshabbaki3 0:5d35ff3dc9a5 149 }
pshabbaki3 0:5d35ff3dc9a5 150 }
pshabbaki3 0:5d35ff3dc9a5 151 }
pshabbaki3 0:5d35ff3dc9a5 152
pshabbaki3 0:5d35ff3dc9a5 153
pshabbaki3 2:693a3af5af49 154 void checkKeyboard(vector<char> im)
pshabbaki3 0:5d35ff3dc9a5 155 {
pshabbaki3 2:693a3af5af49 156 for (int i = 0; i<im.size(); i++) {
pshabbaki3 4:e6b198a22216 157 // find space
pshabbaki3 2:693a3af5af49 158 if (im[i] ==' ') {
pshabbaki3 4:e6b198a22216 159 // Check the result
pshabbaki3 4:e6b198a22216 160 checkResult(pass,name);
pshabbaki3 9:11a6f6c8c54b 161 // clear pass, name and final
pshabbaki3 4:e6b198a22216 162 pass.clear();
pshabbaki3 2:693a3af5af49 163 name.clear();
pshabbaki3 0:5d35ff3dc9a5 164 // pc.printf("clear");
pshabbaki3 4:e6b198a22216 165 //lcd.printf("clear");
pshabbaki3 2:693a3af5af49 166 } else {
pshabbaki3 2:693a3af5af49 167 if (isdigit(im[i])) {
pshabbaki3 4:e6b198a22216 168 // write numbers (char) to vector pass
pshabbaki3 4:e6b198a22216 169 pass.push_back(im[i]);
pshabbaki3 9:11a6f6c8c54b 170
pshabbaki3 2:693a3af5af49 171 } else if (isalpha(im[i])) {
pshabbaki3 2:693a3af5af49 172 // write letters (char) to vector name
pshabbaki3 2:693a3af5af49 173 name.push_back(im[i]);
pshabbaki3 2:693a3af5af49 174
pshabbaki3 2:693a3af5af49 175 }
pshabbaki3 0:5d35ff3dc9a5 176 }
pshabbaki3 0:5d35ff3dc9a5 177 }
pshabbaki3 0:5d35ff3dc9a5 178 }
pshabbaki3 0:5d35ff3dc9a5 179
pshabbaki3 0:5d35ff3dc9a5 180
pshabbaki3 12:22444d5f5920 181 //Interrupt
pshabbaki3 12:22444d5f5920 182 void Rx_interrupt()
pshabbaki3 0:5d35ff3dc9a5 183 {
pshabbaki3 12:22444d5f5920 184 while (pc.readable()) {
pshabbaki3 0:5d35ff3dc9a5 185 char c = pc.getc();
pshabbaki3 0:5d35ff3dc9a5 186 if (c!='#') {
pshabbaki3 0:5d35ff3dc9a5 187 im.push_back(c); //writing all the characters into vector
pshabbaki3 2:693a3af5af49 188 checkKeyboard(im);
pshabbaki3 0:5d35ff3dc9a5 189 } else {
pshabbaki3 0:5d35ff3dc9a5 190 for (int cnt = 0; cnt<im.size(); cnt++) {
pshabbaki3 0:5d35ff3dc9a5 191 pc.printf("%c",im[cnt]);
pshabbaki3 4:e6b198a22216 192 //lcd.printf("%c",im[cnt]);
pshabbaki3 0:5d35ff3dc9a5 193 }
pshabbaki3 0:5d35ff3dc9a5 194 }
pshabbaki3 12:22444d5f5920 195
pshabbaki3 0:5d35ff3dc9a5 196 }
pshabbaki3 12:22444d5f5920 197 return;
pshabbaki3 0:5d35ff3dc9a5 198 }
pshabbaki3 0:5d35ff3dc9a5 199
pshabbaki3 0:5d35ff3dc9a5 200
pshabbaki3 12:22444d5f5920 201 int main()
pshabbaki3 12:22444d5f5920 202 {
pshabbaki3 12:22444d5f5920 203 interrupt.fall(&fallInterrupt);
pshabbaki3 12:22444d5f5920 204 interrupt.mode(PullUp);
pshabbaki3 12:22444d5f5920 205 //load_from_file();
pshabbaki3 12:22444d5f5920 206
pshabbaki3 12:22444d5f5920 207 //interupt driven read from serial port
pshabbaki3 12:22444d5f5920 208 // calls save_to_file();
pshabbaki3 12:22444d5f5920 209 pc.attach(&Rx_interrupt, Serial::RxIrq);
pshabbaki3 12:22444d5f5920 210 }
pshabbaki3 12:22444d5f5920 211
pshabbaki3 12:22444d5f5920 212