System to manage inventory for a cooler. Allows real time check in of products via RFID, as well as check out. Also includes a scale to weigh products upon check out, and has a real time temperature tracking system that sounds an alert if the cooler gets too hot.
Dependencies: DHT11 HX711 MFRC522 SDFileSystemEditied mbed
functions.cpp@0:ad334aa4c7c4, 2018-03-07 (annotated)
- Committer:
- vincentrc
- Date:
- Wed Mar 07 17:52:23 2018 +0000
- Revision:
- 0:ad334aa4c7c4
Initial commit.
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
vincentrc | 0:ad334aa4c7c4 | 1 | #include <stdio.h> |
vincentrc | 0:ad334aa4c7c4 | 2 | #include <iostream> |
vincentrc | 0:ad334aa4c7c4 | 3 | #include <stdlib.h> |
vincentrc | 0:ad334aa4c7c4 | 4 | #include <string.h> |
vincentrc | 0:ad334aa4c7c4 | 5 | #include <string> |
vincentrc | 0:ad334aa4c7c4 | 6 | #include "functions.h" |
vincentrc | 0:ad334aa4c7c4 | 7 | #include "product.h" |
vincentrc | 0:ad334aa4c7c4 | 8 | #include "HX711.h" |
vincentrc | 0:ad334aa4c7c4 | 9 | #include "Dht11.h" |
vincentrc | 0:ad334aa4c7c4 | 10 | |
vincentrc | 0:ad334aa4c7c4 | 11 | Dht11 sensor(D7); |
vincentrc | 0:ad334aa4c7c4 | 12 | float maxtemp = 80; |
vincentrc | 0:ad334aa4c7c4 | 13 | DigitalOut buzzer(D2); |
vincentrc | 0:ad334aa4c7c4 | 14 | DigitalOut LED(PTB22); |
vincentrc | 0:ad334aa4c7c4 | 15 | |
vincentrc | 0:ad334aa4c7c4 | 16 | volatile float Farenheit; |
vincentrc | 0:ad334aa4c7c4 | 17 | volatile int Humidity; |
vincentrc | 0:ad334aa4c7c4 | 18 | extern int id[10]; |
vincentrc | 0:ad334aa4c7c4 | 19 | extern int flag1; |
vincentrc | 0:ad334aa4c7c4 | 20 | extern int flag2; |
vincentrc | 0:ad334aa4c7c4 | 21 | |
vincentrc | 0:ad334aa4c7c4 | 22 | //Adds a new product type to the database |
vincentrc | 0:ad334aa4c7c4 | 23 | struct product *addproduct(struct product *head) |
vincentrc | 0:ad334aa4c7c4 | 24 | { |
vincentrc | 0:ad334aa4c7c4 | 25 | struct product *newp = (struct product*)malloc(sizeof( struct product)); |
vincentrc | 0:ad334aa4c7c4 | 26 | char name[20]; |
vincentrc | 0:ad334aa4c7c4 | 27 | unsigned int pid1, pid2, pid3, pid4; |
vincentrc | 0:ad334aa4c7c4 | 28 | float weight, priceper; |
vincentrc | 0:ad334aa4c7c4 | 29 | |
vincentrc | 0:ad334aa4c7c4 | 30 | fflush(stdin); |
vincentrc | 0:ad334aa4c7c4 | 31 | |
vincentrc | 0:ad334aa4c7c4 | 32 | printf("\n\rName:\n\r"); |
vincentrc | 0:ad334aa4c7c4 | 33 | scanf("%20s", &name); |
vincentrc | 0:ad334aa4c7c4 | 34 | fflush(stdin); |
vincentrc | 0:ad334aa4c7c4 | 35 | printf("\n\rpid(1):\n\r"); |
vincentrc | 0:ad334aa4c7c4 | 36 | scanf("%d", &pid1); |
vincentrc | 0:ad334aa4c7c4 | 37 | printf("\n\rpid(2):\n\r"); |
vincentrc | 0:ad334aa4c7c4 | 38 | scanf("%d", &pid2); |
vincentrc | 0:ad334aa4c7c4 | 39 | printf("\n\rpid(3):\n\r"); |
vincentrc | 0:ad334aa4c7c4 | 40 | scanf("%d", &pid3); |
vincentrc | 0:ad334aa4c7c4 | 41 | printf("\n\rpid(4):\n\r"); |
vincentrc | 0:ad334aa4c7c4 | 42 | scanf("%d", &pid4); |
vincentrc | 0:ad334aa4c7c4 | 43 | printf("\n\rPriceper:\n\r"); |
vincentrc | 0:ad334aa4c7c4 | 44 | scanf("%f", &priceper); |
vincentrc | 0:ad334aa4c7c4 | 45 | |
vincentrc | 0:ad334aa4c7c4 | 46 | strcpy(newp->pname, name); |
vincentrc | 0:ad334aa4c7c4 | 47 | newp->pid[0] = pid1; |
vincentrc | 0:ad334aa4c7c4 | 48 | newp->pid[1] = pid2; |
vincentrc | 0:ad334aa4c7c4 | 49 | newp->pid[2] = pid3; |
vincentrc | 0:ad334aa4c7c4 | 50 | newp->pid[3] = pid4; |
vincentrc | 0:ad334aa4c7c4 | 51 | newp->count = 1; |
vincentrc | 0:ad334aa4c7c4 | 52 | newp->priceper = priceper; |
vincentrc | 0:ad334aa4c7c4 | 53 | |
vincentrc | 0:ad334aa4c7c4 | 54 | |
vincentrc | 0:ad334aa4c7c4 | 55 | newp->next = head; |
vincentrc | 0:ad334aa4c7c4 | 56 | head = newp; |
vincentrc | 0:ad334aa4c7c4 | 57 | |
vincentrc | 0:ad334aa4c7c4 | 58 | std::cout << "\n\r\n\r"; |
vincentrc | 0:ad334aa4c7c4 | 59 | |
vincentrc | 0:ad334aa4c7c4 | 60 | return head; |
vincentrc | 0:ad334aa4c7c4 | 61 | } |
vincentrc | 0:ad334aa4c7c4 | 62 | |
vincentrc | 0:ad334aa4c7c4 | 63 | //Sorts the list by product name alphabetical order |
vincentrc | 0:ad334aa4c7c4 | 64 | struct product *sortlist(struct product *head) |
vincentrc | 0:ad334aa4c7c4 | 65 | { |
vincentrc | 0:ad334aa4c7c4 | 66 | struct product *temp, *ptr, *prev; |
vincentrc | 0:ad334aa4c7c4 | 67 | int x, check; |
vincentrc | 0:ad334aa4c7c4 | 68 | |
vincentrc | 0:ad334aa4c7c4 | 69 | while(1) |
vincentrc | 0:ad334aa4c7c4 | 70 | { |
vincentrc | 0:ad334aa4c7c4 | 71 | check = 0; |
vincentrc | 0:ad334aa4c7c4 | 72 | ptr = head; |
vincentrc | 0:ad334aa4c7c4 | 73 | prev = head; |
vincentrc | 0:ad334aa4c7c4 | 74 | |
vincentrc | 0:ad334aa4c7c4 | 75 | while((ptr->next != NULL) && (ptr != NULL)) |
vincentrc | 0:ad334aa4c7c4 | 76 | { |
vincentrc | 0:ad334aa4c7c4 | 77 | if(strcmp(ptr->pname, ptr->next->pname) > 0) |
vincentrc | 0:ad334aa4c7c4 | 78 | { |
vincentrc | 0:ad334aa4c7c4 | 79 | if(ptr == head) |
vincentrc | 0:ad334aa4c7c4 | 80 | { |
vincentrc | 0:ad334aa4c7c4 | 81 | temp = ptr->next->next; |
vincentrc | 0:ad334aa4c7c4 | 82 | ptr->next->next = ptr; |
vincentrc | 0:ad334aa4c7c4 | 83 | head = ptr->next; |
vincentrc | 0:ad334aa4c7c4 | 84 | ptr->next = temp; |
vincentrc | 0:ad334aa4c7c4 | 85 | check = 1; |
vincentrc | 0:ad334aa4c7c4 | 86 | |
vincentrc | 0:ad334aa4c7c4 | 87 | } |
vincentrc | 0:ad334aa4c7c4 | 88 | |
vincentrc | 0:ad334aa4c7c4 | 89 | else |
vincentrc | 0:ad334aa4c7c4 | 90 | { |
vincentrc | 0:ad334aa4c7c4 | 91 | temp = ptr->next->next; |
vincentrc | 0:ad334aa4c7c4 | 92 | prev->next = ptr->next; |
vincentrc | 0:ad334aa4c7c4 | 93 | ptr->next->next = ptr; |
vincentrc | 0:ad334aa4c7c4 | 94 | ptr->next = temp; |
vincentrc | 0:ad334aa4c7c4 | 95 | check = 1; |
vincentrc | 0:ad334aa4c7c4 | 96 | } |
vincentrc | 0:ad334aa4c7c4 | 97 | } |
vincentrc | 0:ad334aa4c7c4 | 98 | |
vincentrc | 0:ad334aa4c7c4 | 99 | if(ptr->next == NULL) |
vincentrc | 0:ad334aa4c7c4 | 100 | break; |
vincentrc | 0:ad334aa4c7c4 | 101 | else |
vincentrc | 0:ad334aa4c7c4 | 102 | { |
vincentrc | 0:ad334aa4c7c4 | 103 | prev = ptr; |
vincentrc | 0:ad334aa4c7c4 | 104 | ptr = ptr->next; |
vincentrc | 0:ad334aa4c7c4 | 105 | } |
vincentrc | 0:ad334aa4c7c4 | 106 | } |
vincentrc | 0:ad334aa4c7c4 | 107 | |
vincentrc | 0:ad334aa4c7c4 | 108 | //Breaks if no swap occured |
vincentrc | 0:ad334aa4c7c4 | 109 | if(check == 0) |
vincentrc | 0:ad334aa4c7c4 | 110 | break; |
vincentrc | 0:ad334aa4c7c4 | 111 | } |
vincentrc | 0:ad334aa4c7c4 | 112 | |
vincentrc | 0:ad334aa4c7c4 | 113 | return head; |
vincentrc | 0:ad334aa4c7c4 | 114 | } |
vincentrc | 0:ad334aa4c7c4 | 115 | |
vincentrc | 0:ad334aa4c7c4 | 116 | //Displays the inventory list to the user |
vincentrc | 0:ad334aa4c7c4 | 117 | struct product* displaylist(struct product *head) |
vincentrc | 0:ad334aa4c7c4 | 118 | { |
vincentrc | 0:ad334aa4c7c4 | 119 | struct product *ptr; |
vincentrc | 0:ad334aa4c7c4 | 120 | |
vincentrc | 0:ad334aa4c7c4 | 121 | if(head == NULL) |
vincentrc | 0:ad334aa4c7c4 | 122 | { |
vincentrc | 0:ad334aa4c7c4 | 123 | printf("\n\r\n\rNothing in stock!\n\r\n\r"); |
vincentrc | 0:ad334aa4c7c4 | 124 | return head; |
vincentrc | 0:ad334aa4c7c4 | 125 | } |
vincentrc | 0:ad334aa4c7c4 | 126 | |
vincentrc | 0:ad334aa4c7c4 | 127 | head = sortlist(head); |
vincentrc | 0:ad334aa4c7c4 | 128 | |
vincentrc | 0:ad334aa4c7c4 | 129 | ptr = head; |
vincentrc | 0:ad334aa4c7c4 | 130 | |
vincentrc | 0:ad334aa4c7c4 | 131 | while(ptr != NULL) |
vincentrc | 0:ad334aa4c7c4 | 132 | { |
vincentrc | 0:ad334aa4c7c4 | 133 | //Doesn't print out of stock items |
vincentrc | 0:ad334aa4c7c4 | 134 | if(ptr->count <= 0) |
vincentrc | 0:ad334aa4c7c4 | 135 | { |
vincentrc | 0:ad334aa4c7c4 | 136 | ptr = ptr->next; |
vincentrc | 0:ad334aa4c7c4 | 137 | continue; |
vincentrc | 0:ad334aa4c7c4 | 138 | } |
vincentrc | 0:ad334aa4c7c4 | 139 | |
vincentrc | 0:ad334aa4c7c4 | 140 | //Clears input buffer |
vincentrc | 0:ad334aa4c7c4 | 141 | fflush(stdin); |
vincentrc | 0:ad334aa4c7c4 | 142 | |
vincentrc | 0:ad334aa4c7c4 | 143 | printf("\n\r%15s: ID: %4d%4d%4d%4d Price/lb: %6.2f In Stock: %d\n\r", ptr->pname, ptr->pid[0], ptr->pid[1], |
vincentrc | 0:ad334aa4c7c4 | 144 | ptr->pid[2], ptr->pid[3], ptr->priceper, ptr->count); |
vincentrc | 0:ad334aa4c7c4 | 145 | ptr = ptr->next; |
vincentrc | 0:ad334aa4c7c4 | 146 | } |
vincentrc | 0:ad334aa4c7c4 | 147 | |
vincentrc | 0:ad334aa4c7c4 | 148 | printf("\n\r\n\r"); |
vincentrc | 0:ad334aa4c7c4 | 149 | return head; |
vincentrc | 0:ad334aa4c7c4 | 150 | } |
vincentrc | 0:ad334aa4c7c4 | 151 | |
vincentrc | 0:ad334aa4c7c4 | 152 | //Frees the memory allocated for the inventory list |
vincentrc | 0:ad334aa4c7c4 | 153 | void freelist(struct product *head) |
vincentrc | 0:ad334aa4c7c4 | 154 | { |
vincentrc | 0:ad334aa4c7c4 | 155 | struct product *ptr, *temp; |
vincentrc | 0:ad334aa4c7c4 | 156 | |
vincentrc | 0:ad334aa4c7c4 | 157 | ptr = head; |
vincentrc | 0:ad334aa4c7c4 | 158 | |
vincentrc | 0:ad334aa4c7c4 | 159 | while(ptr != NULL) |
vincentrc | 0:ad334aa4c7c4 | 160 | { |
vincentrc | 0:ad334aa4c7c4 | 161 | temp = ptr; |
vincentrc | 0:ad334aa4c7c4 | 162 | ptr = ptr->next; |
vincentrc | 0:ad334aa4c7c4 | 163 | free(temp); |
vincentrc | 0:ad334aa4c7c4 | 164 | } |
vincentrc | 0:ad334aa4c7c4 | 165 | } |
vincentrc | 0:ad334aa4c7c4 | 166 | |
vincentrc | 0:ad334aa4c7c4 | 167 | //Saves the inventory list to a csv file |
vincentrc | 0:ad334aa4c7c4 | 168 | void savelist(struct product *head) |
vincentrc | 0:ad334aa4c7c4 | 169 | { |
vincentrc | 0:ad334aa4c7c4 | 170 | FILE *fp; |
vincentrc | 0:ad334aa4c7c4 | 171 | struct product *ptr; |
vincentrc | 0:ad334aa4c7c4 | 172 | |
vincentrc | 0:ad334aa4c7c4 | 173 | ptr = head; |
vincentrc | 0:ad334aa4c7c4 | 174 | |
vincentrc | 0:ad334aa4c7c4 | 175 | //Open file pointer to output file |
vincentrc | 0:ad334aa4c7c4 | 176 | if((fp = fopen("/sd/inventory.txt", "w")) == NULL) |
vincentrc | 0:ad334aa4c7c4 | 177 | perror("Error"); |
vincentrc | 0:ad334aa4c7c4 | 178 | |
vincentrc | 0:ad334aa4c7c4 | 179 | while(ptr != NULL) |
vincentrc | 0:ad334aa4c7c4 | 180 | { |
vincentrc | 0:ad334aa4c7c4 | 181 | //Outputs attributes |
vincentrc | 0:ad334aa4c7c4 | 182 | fprintf(fp, "%s,%d,%d,%d,%d,%d,%.3f,\n", ptr->pname, |
vincentrc | 0:ad334aa4c7c4 | 183 | ptr->pid[0], ptr->pid[1], ptr->pid[2], ptr->pid[3], ptr->count, ptr->priceper); |
vincentrc | 0:ad334aa4c7c4 | 184 | |
vincentrc | 0:ad334aa4c7c4 | 185 | ptr = ptr->next; |
vincentrc | 0:ad334aa4c7c4 | 186 | } |
vincentrc | 0:ad334aa4c7c4 | 187 | |
vincentrc | 0:ad334aa4c7c4 | 188 | fclose(fp); |
vincentrc | 0:ad334aa4c7c4 | 189 | } |
vincentrc | 0:ad334aa4c7c4 | 190 | |
vincentrc | 0:ad334aa4c7c4 | 191 | //Loads the inventory list from the csv file |
vincentrc | 0:ad334aa4c7c4 | 192 | struct product* loadlist() |
vincentrc | 0:ad334aa4c7c4 | 193 | { |
vincentrc | 0:ad334aa4c7c4 | 194 | FILE *fp; |
vincentrc | 0:ad334aa4c7c4 | 195 | char line[512], *token; |
vincentrc | 0:ad334aa4c7c4 | 196 | int x, flag = 0; |
vincentrc | 0:ad334aa4c7c4 | 197 | struct product *newprod, *head, *prev; |
vincentrc | 0:ad334aa4c7c4 | 198 | |
vincentrc | 0:ad334aa4c7c4 | 199 | |
vincentrc | 0:ad334aa4c7c4 | 200 | //Opens file pointer to input file |
vincentrc | 0:ad334aa4c7c4 | 201 | if((fp = fopen("/sd/inventory.txt", "r")) == NULL) |
vincentrc | 0:ad334aa4c7c4 | 202 | { |
vincentrc | 0:ad334aa4c7c4 | 203 | printf("\n\r\n\rInventory is empty:\n\r\n\r"); |
vincentrc | 0:ad334aa4c7c4 | 204 | return NULL; |
vincentrc | 0:ad334aa4c7c4 | 205 | } |
vincentrc | 0:ad334aa4c7c4 | 206 | |
vincentrc | 0:ad334aa4c7c4 | 207 | |
vincentrc | 0:ad334aa4c7c4 | 208 | //Reads in next line of file |
vincentrc | 0:ad334aa4c7c4 | 209 | while(fgets(line, 512, fp) != NULL) |
vincentrc | 0:ad334aa4c7c4 | 210 | { |
vincentrc | 0:ad334aa4c7c4 | 211 | //Breaks when end of file is reached |
vincentrc | 0:ad334aa4c7c4 | 212 | if(feof(fp)) |
vincentrc | 0:ad334aa4c7c4 | 213 | break; |
vincentrc | 0:ad334aa4c7c4 | 214 | |
vincentrc | 0:ad334aa4c7c4 | 215 | //Allocates memory for the product |
vincentrc | 0:ad334aa4c7c4 | 216 | newprod = (struct product*)malloc(sizeof(struct product)); |
vincentrc | 0:ad334aa4c7c4 | 217 | |
vincentrc | 0:ad334aa4c7c4 | 218 | //Adds the product to the list in order (flag is 0 for the first product only) |
vincentrc | 0:ad334aa4c7c4 | 219 | if(flag == 0) |
vincentrc | 0:ad334aa4c7c4 | 220 | head = newprod; |
vincentrc | 0:ad334aa4c7c4 | 221 | else |
vincentrc | 0:ad334aa4c7c4 | 222 | prev->next = newprod; |
vincentrc | 0:ad334aa4c7c4 | 223 | |
vincentrc | 0:ad334aa4c7c4 | 224 | //Moves prev up |
vincentrc | 0:ad334aa4c7c4 | 225 | prev = newprod; |
vincentrc | 0:ad334aa4c7c4 | 226 | newprod->next = NULL; |
vincentrc | 0:ad334aa4c7c4 | 227 | |
vincentrc | 0:ad334aa4c7c4 | 228 | //Breaks csv line into tokens with comma as the delimiter |
vincentrc | 0:ad334aa4c7c4 | 229 | token = strtok(line, ","); |
vincentrc | 0:ad334aa4c7c4 | 230 | |
vincentrc | 0:ad334aa4c7c4 | 231 | //Iterates once for each attribute in the product structure |
vincentrc | 0:ad334aa4c7c4 | 232 | for(x=0;x<7;x++) |
vincentrc | 0:ad334aa4c7c4 | 233 | { |
vincentrc | 0:ad334aa4c7c4 | 234 | if(x == 0) |
vincentrc | 0:ad334aa4c7c4 | 235 | strcpy(newprod->pname, token); |
vincentrc | 0:ad334aa4c7c4 | 236 | |
vincentrc | 0:ad334aa4c7c4 | 237 | else if(x == 1) |
vincentrc | 0:ad334aa4c7c4 | 238 | newprod->pid[0] = atoi(token); |
vincentrc | 0:ad334aa4c7c4 | 239 | |
vincentrc | 0:ad334aa4c7c4 | 240 | else if(x == 2) |
vincentrc | 0:ad334aa4c7c4 | 241 | newprod->pid[1] = atoi(token); |
vincentrc | 0:ad334aa4c7c4 | 242 | |
vincentrc | 0:ad334aa4c7c4 | 243 | else if(x == 3) |
vincentrc | 0:ad334aa4c7c4 | 244 | newprod->pid[2] = atoi(token); |
vincentrc | 0:ad334aa4c7c4 | 245 | |
vincentrc | 0:ad334aa4c7c4 | 246 | else if(x == 4) |
vincentrc | 0:ad334aa4c7c4 | 247 | newprod->pid[3] = atoi(token); |
vincentrc | 0:ad334aa4c7c4 | 248 | |
vincentrc | 0:ad334aa4c7c4 | 249 | else if(x == 5) |
vincentrc | 0:ad334aa4c7c4 | 250 | newprod->count = atoi(token); |
vincentrc | 0:ad334aa4c7c4 | 251 | |
vincentrc | 0:ad334aa4c7c4 | 252 | else |
vincentrc | 0:ad334aa4c7c4 | 253 | newprod->priceper = atof(token); |
vincentrc | 0:ad334aa4c7c4 | 254 | |
vincentrc | 0:ad334aa4c7c4 | 255 | //Goes to next token |
vincentrc | 0:ad334aa4c7c4 | 256 | token = strtok(NULL, ","); |
vincentrc | 0:ad334aa4c7c4 | 257 | } |
vincentrc | 0:ad334aa4c7c4 | 258 | |
vincentrc | 0:ad334aa4c7c4 | 259 | //Sets flag so it's 1 for all iterations except the first |
vincentrc | 0:ad334aa4c7c4 | 260 | flag = 1; |
vincentrc | 0:ad334aa4c7c4 | 261 | |
vincentrc | 0:ad334aa4c7c4 | 262 | } |
vincentrc | 0:ad334aa4c7c4 | 263 | |
vincentrc | 0:ad334aa4c7c4 | 264 | fclose(fp); |
vincentrc | 0:ad334aa4c7c4 | 265 | return head; |
vincentrc | 0:ad334aa4c7c4 | 266 | } |
vincentrc | 0:ad334aa4c7c4 | 267 | |
vincentrc | 0:ad334aa4c7c4 | 268 | //Finds a product by its name and returns it or NULL if not found |
vincentrc | 0:ad334aa4c7c4 | 269 | struct product* findbyname(char name[50], struct product *head) |
vincentrc | 0:ad334aa4c7c4 | 270 | { |
vincentrc | 0:ad334aa4c7c4 | 271 | struct product *ptr; |
vincentrc | 0:ad334aa4c7c4 | 272 | |
vincentrc | 0:ad334aa4c7c4 | 273 | ptr = head; |
vincentrc | 0:ad334aa4c7c4 | 274 | |
vincentrc | 0:ad334aa4c7c4 | 275 | while(ptr != NULL) |
vincentrc | 0:ad334aa4c7c4 | 276 | { |
vincentrc | 0:ad334aa4c7c4 | 277 | if(strcmp(ptr->pname, name) == 0) |
vincentrc | 0:ad334aa4c7c4 | 278 | return ptr; |
vincentrc | 0:ad334aa4c7c4 | 279 | |
vincentrc | 0:ad334aa4c7c4 | 280 | ptr = ptr->next; |
vincentrc | 0:ad334aa4c7c4 | 281 | } |
vincentrc | 0:ad334aa4c7c4 | 282 | |
vincentrc | 0:ad334aa4c7c4 | 283 | return NULL; |
vincentrc | 0:ad334aa4c7c4 | 284 | |
vincentrc | 0:ad334aa4c7c4 | 285 | } |
vincentrc | 0:ad334aa4c7c4 | 286 | |
vincentrc | 0:ad334aa4c7c4 | 287 | struct product* findbyid(int id[10], struct product *head) |
vincentrc | 0:ad334aa4c7c4 | 288 | { |
vincentrc | 0:ad334aa4c7c4 | 289 | struct product *ptr; |
vincentrc | 0:ad334aa4c7c4 | 290 | int x; |
vincentrc | 0:ad334aa4c7c4 | 291 | |
vincentrc | 0:ad334aa4c7c4 | 292 | ptr = head; |
vincentrc | 0:ad334aa4c7c4 | 293 | |
vincentrc | 0:ad334aa4c7c4 | 294 | while(ptr != NULL) |
vincentrc | 0:ad334aa4c7c4 | 295 | { |
vincentrc | 0:ad334aa4c7c4 | 296 | for(x=0;x<4;x++) |
vincentrc | 0:ad334aa4c7c4 | 297 | { |
vincentrc | 0:ad334aa4c7c4 | 298 | if(id[x] != ptr->pid[x]) |
vincentrc | 0:ad334aa4c7c4 | 299 | break; |
vincentrc | 0:ad334aa4c7c4 | 300 | |
vincentrc | 0:ad334aa4c7c4 | 301 | if(x == 3) |
vincentrc | 0:ad334aa4c7c4 | 302 | return ptr; |
vincentrc | 0:ad334aa4c7c4 | 303 | } |
vincentrc | 0:ad334aa4c7c4 | 304 | |
vincentrc | 0:ad334aa4c7c4 | 305 | |
vincentrc | 0:ad334aa4c7c4 | 306 | ptr = ptr->next; |
vincentrc | 0:ad334aa4c7c4 | 307 | } |
vincentrc | 0:ad334aa4c7c4 | 308 | |
vincentrc | 0:ad334aa4c7c4 | 309 | return NULL; |
vincentrc | 0:ad334aa4c7c4 | 310 | } |
vincentrc | 0:ad334aa4c7c4 | 311 | |
vincentrc | 0:ad334aa4c7c4 | 312 | //Checks in an item of given name by incrementing that product's count attribute |
vincentrc | 0:ad334aa4c7c4 | 313 | struct product* checkin(struct product *head) |
vincentrc | 0:ad334aa4c7c4 | 314 | { |
vincentrc | 0:ad334aa4c7c4 | 315 | struct product *ptr; |
vincentrc | 0:ad334aa4c7c4 | 316 | |
vincentrc | 0:ad334aa4c7c4 | 317 | char entry[20]; |
vincentrc | 0:ad334aa4c7c4 | 318 | |
vincentrc | 0:ad334aa4c7c4 | 319 | printf("\n\r\n\rPlease enter product name:\n\r\n\r"); |
vincentrc | 0:ad334aa4c7c4 | 320 | |
vincentrc | 0:ad334aa4c7c4 | 321 | fflush(stdin); |
vincentrc | 0:ad334aa4c7c4 | 322 | scanf("%20s", &entry); |
vincentrc | 0:ad334aa4c7c4 | 323 | fflush(stdin); |
vincentrc | 0:ad334aa4c7c4 | 324 | if((ptr = findbyname(entry, head)) == NULL) |
vincentrc | 0:ad334aa4c7c4 | 325 | printf("\n\r\n\rNo such product!\n\r\n\r"); |
vincentrc | 0:ad334aa4c7c4 | 326 | else |
vincentrc | 0:ad334aa4c7c4 | 327 | ptr->count++; |
vincentrc | 0:ad334aa4c7c4 | 328 | |
vincentrc | 0:ad334aa4c7c4 | 329 | return head; |
vincentrc | 0:ad334aa4c7c4 | 330 | } |
vincentrc | 0:ad334aa4c7c4 | 331 | |
vincentrc | 0:ad334aa4c7c4 | 332 | //Checks a product out of inventory, and gives a price |
vincentrc | 0:ad334aa4c7c4 | 333 | struct product* checkout(struct product *head, HX711 scale1) |
vincentrc | 0:ad334aa4c7c4 | 334 | { |
vincentrc | 0:ad334aa4c7c4 | 335 | struct product *ptr; |
vincentrc | 0:ad334aa4c7c4 | 336 | char entry[20]; |
vincentrc | 0:ad334aa4c7c4 | 337 | float weight = 3.5, price; |
vincentrc | 0:ad334aa4c7c4 | 338 | int x, y; |
vincentrc | 0:ad334aa4c7c4 | 339 | |
vincentrc | 0:ad334aa4c7c4 | 340 | |
vincentrc | 0:ad334aa4c7c4 | 341 | printf("\n\r\n\rPress:\n\r1: rfid\n\r2: manual\n\r\n\r"); |
vincentrc | 0:ad334aa4c7c4 | 342 | |
vincentrc | 0:ad334aa4c7c4 | 343 | scanf("%20s", &entry); |
vincentrc | 0:ad334aa4c7c4 | 344 | |
vincentrc | 0:ad334aa4c7c4 | 345 | if(strcmp("1", entry) == 0) |
vincentrc | 0:ad334aa4c7c4 | 346 | { |
vincentrc | 0:ad334aa4c7c4 | 347 | printf("\n\r\n\rPlease scan rfid:\n\r\n\r"); |
vincentrc | 0:ad334aa4c7c4 | 348 | |
vincentrc | 0:ad334aa4c7c4 | 349 | flag1 = 0; |
vincentrc | 0:ad334aa4c7c4 | 350 | flag2 = 0; |
vincentrc | 0:ad334aa4c7c4 | 351 | |
vincentrc | 0:ad334aa4c7c4 | 352 | //Waits for rfid interrupt |
vincentrc | 0:ad334aa4c7c4 | 353 | while(flag2 == 0) |
vincentrc | 0:ad334aa4c7c4 | 354 | { |
vincentrc | 0:ad334aa4c7c4 | 355 | wait(0.5); |
vincentrc | 0:ad334aa4c7c4 | 356 | continue; |
vincentrc | 0:ad334aa4c7c4 | 357 | } |
vincentrc | 0:ad334aa4c7c4 | 358 | |
vincentrc | 0:ad334aa4c7c4 | 359 | if((ptr = findbyid(id, head)) == NULL) |
vincentrc | 0:ad334aa4c7c4 | 360 | { |
vincentrc | 0:ad334aa4c7c4 | 361 | printf("\n\r\n\rNo such item!\n\r\n\r"); |
vincentrc | 0:ad334aa4c7c4 | 362 | flag1 = 1; |
vincentrc | 0:ad334aa4c7c4 | 363 | return head; |
vincentrc | 0:ad334aa4c7c4 | 364 | } |
vincentrc | 0:ad334aa4c7c4 | 365 | |
vincentrc | 0:ad334aa4c7c4 | 366 | else if(ptr->count <= 0) |
vincentrc | 0:ad334aa4c7c4 | 367 | { |
vincentrc | 0:ad334aa4c7c4 | 368 | printf("\n\r\n\rOut of stock!\n\r\n\r"); |
vincentrc | 0:ad334aa4c7c4 | 369 | flag1 = 1; |
vincentrc | 0:ad334aa4c7c4 | 370 | return head; |
vincentrc | 0:ad334aa4c7c4 | 371 | } |
vincentrc | 0:ad334aa4c7c4 | 372 | |
vincentrc | 0:ad334aa4c7c4 | 373 | } |
vincentrc | 0:ad334aa4c7c4 | 374 | |
vincentrc | 0:ad334aa4c7c4 | 375 | else if(strcmp("2", entry) == 0) |
vincentrc | 0:ad334aa4c7c4 | 376 | { |
vincentrc | 0:ad334aa4c7c4 | 377 | printf("\n\r\n\rPlease enter product name:\n\r\n\r"); |
vincentrc | 0:ad334aa4c7c4 | 378 | fflush(stdin); |
vincentrc | 0:ad334aa4c7c4 | 379 | scanf("%20s", &entry); |
vincentrc | 0:ad334aa4c7c4 | 380 | fflush(stdin); |
vincentrc | 0:ad334aa4c7c4 | 381 | |
vincentrc | 0:ad334aa4c7c4 | 382 | |
vincentrc | 0:ad334aa4c7c4 | 383 | if((ptr = findbyname(entry, head)) == NULL) |
vincentrc | 0:ad334aa4c7c4 | 384 | { |
vincentrc | 0:ad334aa4c7c4 | 385 | printf("\n\r\n\rNo such item!\n\r\n\r"); |
vincentrc | 0:ad334aa4c7c4 | 386 | return head; |
vincentrc | 0:ad334aa4c7c4 | 387 | } |
vincentrc | 0:ad334aa4c7c4 | 388 | |
vincentrc | 0:ad334aa4c7c4 | 389 | else if(ptr->count <= 0) |
vincentrc | 0:ad334aa4c7c4 | 390 | { |
vincentrc | 0:ad334aa4c7c4 | 391 | printf("\n\r\n\rOut of stock!\n\r\n\r"); |
vincentrc | 0:ad334aa4c7c4 | 392 | return head; |
vincentrc | 0:ad334aa4c7c4 | 393 | } |
vincentrc | 0:ad334aa4c7c4 | 394 | } |
vincentrc | 0:ad334aa4c7c4 | 395 | else |
vincentrc | 0:ad334aa4c7c4 | 396 | { |
vincentrc | 0:ad334aa4c7c4 | 397 | printf("\n\r\n\rIncorrect entry\n\r\n\r"); |
vincentrc | 0:ad334aa4c7c4 | 398 | return head; |
vincentrc | 0:ad334aa4c7c4 | 399 | } |
vincentrc | 0:ad334aa4c7c4 | 400 | |
vincentrc | 0:ad334aa4c7c4 | 401 | |
vincentrc | 0:ad334aa4c7c4 | 402 | weight = scale(scale1); |
vincentrc | 0:ad334aa4c7c4 | 403 | price = ptr->priceper * weight; |
vincentrc | 0:ad334aa4c7c4 | 404 | printf("\n\r\n\rPrice: %f\n\r\n\r", price); |
vincentrc | 0:ad334aa4c7c4 | 405 | ptr->count--; |
vincentrc | 0:ad334aa4c7c4 | 406 | |
vincentrc | 0:ad334aa4c7c4 | 407 | |
vincentrc | 0:ad334aa4c7c4 | 408 | flag1 = 1; |
vincentrc | 0:ad334aa4c7c4 | 409 | return head; |
vincentrc | 0:ad334aa4c7c4 | 410 | } |
vincentrc | 0:ad334aa4c7c4 | 411 | |
vincentrc | 0:ad334aa4c7c4 | 412 | //Temperature sensor rti isr |
vincentrc | 0:ad334aa4c7c4 | 413 | void timer_temp_hum_isr() |
vincentrc | 0:ad334aa4c7c4 | 414 | { |
vincentrc | 0:ad334aa4c7c4 | 415 | sensor.read(); |
vincentrc | 0:ad334aa4c7c4 | 416 | Farenheit = sensor.getFahrenheit(); |
vincentrc | 0:ad334aa4c7c4 | 417 | Humidity = sensor.getHumidity(); |
vincentrc | 0:ad334aa4c7c4 | 418 | |
vincentrc | 0:ad334aa4c7c4 | 419 | if(Farenheit > maxtemp) |
vincentrc | 0:ad334aa4c7c4 | 420 | { |
vincentrc | 0:ad334aa4c7c4 | 421 | buzzer = 1; |
vincentrc | 0:ad334aa4c7c4 | 422 | LED = 0; |
vincentrc | 0:ad334aa4c7c4 | 423 | } |
vincentrc | 0:ad334aa4c7c4 | 424 | else |
vincentrc | 0:ad334aa4c7c4 | 425 | { |
vincentrc | 0:ad334aa4c7c4 | 426 | buzzer = 0; |
vincentrc | 0:ad334aa4c7c4 | 427 | LED = 1; |
vincentrc | 0:ad334aa4c7c4 | 428 | } |
vincentrc | 0:ad334aa4c7c4 | 429 | } |
vincentrc | 0:ad334aa4c7c4 | 430 | |
vincentrc | 0:ad334aa4c7c4 | 431 | //Prints the current teperature |
vincentrc | 0:ad334aa4c7c4 | 432 | void getstatus() |
vincentrc | 0:ad334aa4c7c4 | 433 | { |
vincentrc | 0:ad334aa4c7c4 | 434 | printf("\n\rCurrent Temperature: %.2f F\n\r", Farenheit); |
vincentrc | 0:ad334aa4c7c4 | 435 | } |
vincentrc | 0:ad334aa4c7c4 | 436 | |
vincentrc | 0:ad334aa4c7c4 | 437 | //Sets max alowable temperature |
vincentrc | 0:ad334aa4c7c4 | 438 | void setmax() |
vincentrc | 0:ad334aa4c7c4 | 439 | { |
vincentrc | 0:ad334aa4c7c4 | 440 | printf("\n\r\n\rEnter max temperature: "); |
vincentrc | 0:ad334aa4c7c4 | 441 | scanf("%f", &maxtemp); |
vincentrc | 0:ad334aa4c7c4 | 442 | printf("\n\r\n\r"); |
vincentrc | 0:ad334aa4c7c4 | 443 | } |
vincentrc | 0:ad334aa4c7c4 | 444 | |
vincentrc | 0:ad334aa4c7c4 | 445 | struct product* findrfid(int rfid[4], struct product *head) |
vincentrc | 0:ad334aa4c7c4 | 446 | { |
vincentrc | 0:ad334aa4c7c4 | 447 | FILE *fp; |
vincentrc | 0:ad334aa4c7c4 | 448 | char line[512], *token; |
vincentrc | 0:ad334aa4c7c4 | 449 | int x, flag = 0, match = 0; |
vincentrc | 0:ad334aa4c7c4 | 450 | struct product *newprod, *ptr; |
vincentrc | 0:ad334aa4c7c4 | 451 | uint8_t temp; |
vincentrc | 0:ad334aa4c7c4 | 452 | |
vincentrc | 0:ad334aa4c7c4 | 453 | //Opens file pointer to input file |
vincentrc | 0:ad334aa4c7c4 | 454 | if((fp = fopen("/sd/rfiddata.txt", "r")) == NULL) |
vincentrc | 0:ad334aa4c7c4 | 455 | perror("Error"); |
vincentrc | 0:ad334aa4c7c4 | 456 | |
vincentrc | 0:ad334aa4c7c4 | 457 | |
vincentrc | 0:ad334aa4c7c4 | 458 | //Reads in next line of file |
vincentrc | 0:ad334aa4c7c4 | 459 | while(fgets(line, 512, fp) != NULL) |
vincentrc | 0:ad334aa4c7c4 | 460 | { |
vincentrc | 0:ad334aa4c7c4 | 461 | match = 0; |
vincentrc | 0:ad334aa4c7c4 | 462 | |
vincentrc | 0:ad334aa4c7c4 | 463 | //Breaks csv line into tokens with comma as the delimiter |
vincentrc | 0:ad334aa4c7c4 | 464 | token = strtok(line, ","); |
vincentrc | 0:ad334aa4c7c4 | 465 | |
vincentrc | 0:ad334aa4c7c4 | 466 | for(x=0;x<4;x++) |
vincentrc | 0:ad334aa4c7c4 | 467 | { |
vincentrc | 0:ad334aa4c7c4 | 468 | if(rfid[x] != atoi(token)) |
vincentrc | 0:ad334aa4c7c4 | 469 | break; |
vincentrc | 0:ad334aa4c7c4 | 470 | |
vincentrc | 0:ad334aa4c7c4 | 471 | //Goes to next token |
vincentrc | 0:ad334aa4c7c4 | 472 | token = strtok(NULL, ","); |
vincentrc | 0:ad334aa4c7c4 | 473 | |
vincentrc | 0:ad334aa4c7c4 | 474 | if(x == 3) |
vincentrc | 0:ad334aa4c7c4 | 475 | match = 1; |
vincentrc | 0:ad334aa4c7c4 | 476 | } |
vincentrc | 0:ad334aa4c7c4 | 477 | |
vincentrc | 0:ad334aa4c7c4 | 478 | if(match == 1) |
vincentrc | 0:ad334aa4c7c4 | 479 | { |
vincentrc | 0:ad334aa4c7c4 | 480 | |
vincentrc | 0:ad334aa4c7c4 | 481 | if((ptr = findbyname(token, head)) != NULL) |
vincentrc | 0:ad334aa4c7c4 | 482 | { |
vincentrc | 0:ad334aa4c7c4 | 483 | ptr->count++; |
vincentrc | 0:ad334aa4c7c4 | 484 | fclose(fp); |
vincentrc | 0:ad334aa4c7c4 | 485 | return head; |
vincentrc | 0:ad334aa4c7c4 | 486 | } |
vincentrc | 0:ad334aa4c7c4 | 487 | |
vincentrc | 0:ad334aa4c7c4 | 488 | //Allocates memory for the product |
vincentrc | 0:ad334aa4c7c4 | 489 | newprod = (struct product*)malloc(sizeof(struct product)); |
vincentrc | 0:ad334aa4c7c4 | 490 | |
vincentrc | 0:ad334aa4c7c4 | 491 | //Fills in new product attributes |
vincentrc | 0:ad334aa4c7c4 | 492 | strcpy(newprod->pname, token); |
vincentrc | 0:ad334aa4c7c4 | 493 | newprod->count = 1; |
vincentrc | 0:ad334aa4c7c4 | 494 | |
vincentrc | 0:ad334aa4c7c4 | 495 | //Goes to next token |
vincentrc | 0:ad334aa4c7c4 | 496 | token = strtok(NULL, ","); |
vincentrc | 0:ad334aa4c7c4 | 497 | newprod->priceper = atof(token); |
vincentrc | 0:ad334aa4c7c4 | 498 | |
vincentrc | 0:ad334aa4c7c4 | 499 | //Fills id |
vincentrc | 0:ad334aa4c7c4 | 500 | newprod->pid[0] = rfid[0]; |
vincentrc | 0:ad334aa4c7c4 | 501 | newprod->pid[1] = rfid[1]; |
vincentrc | 0:ad334aa4c7c4 | 502 | newprod->pid[2] = rfid[2]; |
vincentrc | 0:ad334aa4c7c4 | 503 | newprod->pid[3] = rfid[3]; |
vincentrc | 0:ad334aa4c7c4 | 504 | |
vincentrc | 0:ad334aa4c7c4 | 505 | //Adds to list |
vincentrc | 0:ad334aa4c7c4 | 506 | newprod->next = head; |
vincentrc | 0:ad334aa4c7c4 | 507 | head = newprod; |
vincentrc | 0:ad334aa4c7c4 | 508 | break; |
vincentrc | 0:ad334aa4c7c4 | 509 | } |
vincentrc | 0:ad334aa4c7c4 | 510 | |
vincentrc | 0:ad334aa4c7c4 | 511 | else |
vincentrc | 0:ad334aa4c7c4 | 512 | { |
vincentrc | 0:ad334aa4c7c4 | 513 | continue; |
vincentrc | 0:ad334aa4c7c4 | 514 | } |
vincentrc | 0:ad334aa4c7c4 | 515 | |
vincentrc | 0:ad334aa4c7c4 | 516 | } |
vincentrc | 0:ad334aa4c7c4 | 517 | |
vincentrc | 0:ad334aa4c7c4 | 518 | fclose(fp); |
vincentrc | 0:ad334aa4c7c4 | 519 | return head; |
vincentrc | 0:ad334aa4c7c4 | 520 | } |