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#Include #Device #Include #Include #Include #Fuses #Use #Use #Include #Define #Define #Define #Define #Define #Define #Define #Include

This code is the main file for a GSM project that controls an embedded system via SMS commands. It initializes an LCD, modem communications, and I/O pins. The main loop waits for SMS messages, parses the text for commands, and takes actions like turning outputs on/off. If no SMS is received, it sends status updates until receiving a shutdown command, at which point it powers everything down in an orderly fashion.

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muralikrishnagb6717
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112 views6 pages

#Include #Device #Include #Include #Include #Fuses #Use #Use #Include #Define #Define #Define #Define #Define #Define #Define #Include

This code is the main file for a GSM project that controls an embedded system via SMS commands. It initializes an LCD, modem communications, and I/O pins. The main loop waits for SMS messages, parses the text for commands, and takes actions like turning outputs on/off. If no SMS is received, it sends status updates until receiving a shutdown command, at which point it powers everything down in an orderly fashion.

Uploaded by

muralikrishnagb6717
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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F:\Projects\GSM PROJ\Source files\Main.

c
1: #include <16f877a.h>
2: #device adc=10
3: #include <stdio.h>
4: #include <stdlib.h>
5: #include <string.h>
6:
7: #fuses HS,NOWDT,NOPROTECT,NOLVP,NOBROWNOUT,NODEBUG,NOPUT
8: #use delay(clock=8000000)
9:
10: #use rs232(baud=1200, bits=8,xmit=PIN_C6, rcv=PIN_C7,PARITY=N,STOP=1,ERRORS)
11:
12: #include "GSM.c"
13:
14: #define LCD_ENABLE_PIN PIN_D1
15: #define LCD_RS_PIN PIN_D2
16: #define LCD_RW_PIN PIN_D3
17: #define LCD_DATA4 PIN_D4
18: #define LCD_DATA5 PIN_D5
19: #define LCD_DATA6 PIN_D6
20: #define LCD_DATA7 PIN_D7
21:
22: #include "lcdd.c"
23:
24: void main()
25: {
26:
27: lcd_init();
28: lcd_putc("\fBUFFER CLEARED\n");
29: delay_ms(1000);
30: set_tris_a(0X03);
31: set_tris_b(0XF0);
32: port_b_pullups(0XFF);
33: CLEAR_BUFFER();
34:
35: setup_adc(ADC_CLOCK_DIV_2);
36: setup_adc_ports(RA0_RA1_RA3_ANALOG);
37:
38:
39: output_low(PIN_B1);
40: output_low(PIN_B0);
41: output_low(PIN_A5);
42: output_low(PIN_B2);
43: output_low(PIN_B3);
44:
45: lcd_gotoxy(1,1);
46:
47: for(i=21;i>0;i--)
48: {
49: lcd_putc("\f");
50: lcd_gotoxy(i,1);
51: lcd_putc("Welcome To EEE");
52: delay_ms(300);
53:
54: }
55:
56: lcd_putc("\f");
57:
58: for(i=0;i<21;i++)
59: {
60: lcd_putc("\f");
61: lcd_gotoxy(i,1);
62: lcd_putc("MK ELECTRONICS");
63: delay_ms(300);

1
F:\Projects\GSM PROJ\Source files\Main.c
64:
65: }
66:
67: for(i=7;i>0;i--)
68: {
69: lcd_putc("\f THIS IS MK \n");
70: printf(lcd_putc,"Let's start..%d ",i);
71: delay_ms(300);
72: }
73:
74:
75:
76: output_high(PIN_B1); //multicolour
77:
78: while(1) // OUTER WHILE LOOP
79: {
80:
81: ENABLE_INTERRUPTS(GLOBAL);
82: ENABLE_INTERRUPTS(INT_RDA);
83:
84: delay_ms(1000);
85:
86: if(CHECK_COM())
87: {
88: CLEAR_BUFFER();
89: lcd_putc("\fCOMMS ARE GOOD\n");
90: lcd_putc("\MOVING ON...\n");
91: delay_ms(1000);
92: }
93: else
94: {
95: lcd_putc("\fCOMMS FAILED\n");
96: delay_ms(1000);
97: while(!CHECK_COM())
98: {
99: lcd_putc("\RETRYING - STUCK IN LOOP\n" );
100: delay_ms(1000);
101: CLEAR_BUFFER();
102: }
103: lcd_putc("\fCOMMS ARE GOOD\n");
104:
105: }
106: delay_ms(1000);
107: CLEAR_BUFFER();
108:
109: lcd_putc("\fSET MODEM TO TXT MODE\n");
110: delay_ms(1000);
111: if(SET_PDU())
112: {
113:
114: CLEAR_BUFFER();
115: lcd_putc("\OK! - MOVING ON...\n");
116: delay_ms(1000);
117: }
118: else
119: {
120: lcd_putc("\ERROR - STUCK IN LOOP...\n" );
121: while(1);
122: }
123:
124: delay_ms(1000);
125: CLEAR_BUFFER();
126:

2
F:\Projects\GSM PROJ\Source files\Main.c
127: lcd_putc("\fSETTING SMS MEMORY\n");
128: delay_ms(1000);
129:
130: if(SET_MEM())
131: {
132:
133: CLEAR_BUFFER();
134: lcd_putc("\OK! - MOVING ON...\n");
135: delay_ms(1000);
136: }
137: else
138: {
139: lcd_putc("\ERROR - STUCK IN LOOP...\n" );
140: while(1);
141: }
142:
143: delay_ms(1000);
144: CLEAR_BUFFER();
145:
146:
147: lcd_putc("\fSETTING SMS ALERT\n");
148: delay_ms(1000);
149: if(SET_CNMI())
150: {
151: CLEAR_BUFFER();
152: lcd_putc("\OK! - MOVING ON...\n");
153: delay_ms(1000);
154: }
155: else
156: {
157: lcd_putc("\ERROR - STUCK IN LOOP...\n" );
158: while(1);
159: }
160:
161: lcd_putc("\fMODEM SETUP DONE\n");
162: lcd_putc("\CLEARING BUFFER...\n");
163: CLEAR_BUFFER();
164: lcd_putc("\NEXT ---> RUN PROG\n");
165:
166: delay_ms(1000);
167: output_low(PIN_B1);
168: CLEAR_BUFFER();
169: delay_ms(1000);
170:
171: while(1) // INNER WHILE LOOP
172: {
173: delay_ms(1000);
174: lcd_putc("\f");
175: lcd_putc("\fWAITING FOR SMS\n");
176: output_low(PIN_B1);
177: output_high(PIN_B0); // blue colour
178: output_low(PIN_A5); // green colour
179: delay_ms(1000);
180:
181: OLR=input(PIN_B5); // OLR-> 1 OPN NO OLR OPT
182: VOL=input(PIN_B6); // VOL-> 0 CLS NC No supply
183:
184:
185: // if((VOL==0) && (l<3))
186: Halt: while((!VOL) || (OLR))
187: {
188: if(l<3)
189: {

3
F:\Projects\GSM PROJ\Source files\Main.c
190:
191: l++;
192: delay_ms(1000);
193: printf("AT+CMGS=\"%s\"\r",MASTER);
194: delay_ms(500);
195: if(VOL==0) printf(" SUPPLY NOT AVAILABLE\n"); // NC contact
196: if(OLR==1) printf(" PERMISSIVE NOT AVAILABLE\n" ); // NO contact
197: putchar(0x1A);
198: delay_ms(3000);
199:
200: }
201:
202: else
203: {
204: LOV=1;
205: delay_ms(1500);
206: lcd_putc("\f");
207: printf(lcd_putc,"Sleeping !!!");
208: delay_ms(1000);
209: VOL=input(PIN_B6);
210: OLR=input(PIN_B5);
211: delay_ms(3000);
212: if((VOL==1)&&(OLR==0)) goto RESTART;
213: }
214: }
215:
216: RESTART: delay_ms(1000);
217: flag=READ_SMS();
218: if (flag !=0)
219: {
220:
221: lcd_putc("\fSMS RECEIVED!!\n");
222: delay_ms(1000);
223: output_low(PIN_B0);
224: output_high(PIN_A5);
225: string_parse();
226: delay_ms(3000);
227: DISABLE_INTERRUPTS(INT_RDA);
228:
229: if((phone[0]!='+') || (phone[1] !='9') || (phone[2] !='1'))
230: goto EXIT;
231: End_Prog=0;
232:
233: if (STRING_SEARCH(CON) && (!strcmp(phone,MASTER)))
234: {
235: output_high(PIN_B3);
236: delay_ms(4000);
237: output_low (PIN_B3);
238:
239:
240: }
241: else if (STRING_SEARCH(COFF) && (!strcmp(phone,MASTER)))
242: {
243: output_high(PIN_B2);
244: delay_ms(4000);
245: output_low(PIN_B2);
246:
247:
248: }
249: else ;
250:
251:
252: delay_ms(3000);

4
F:\Projects\GSM PROJ\Source files\Main.c
253:
254:
255: CLEAR_BUFFER();
256: if (input(PIN_B4)==0) STS=1;
257: else if (input(PIN_B4)==1) STS=0;
258: else;
259:
260: READ_CURRENT();
261: delay_ms(1000);
262:
263: READ_TEMP();
264: delay_ms(1000);
265:
266:
267: lcd_putc("\f");
268: printf(lcd_putc,"%s",phone);
269: delay_ms(1000);
270: SEND_SMS(phone,msg,STS);
271: if (End_Prog==1) GOTO OUTLOOP;
272: CLEAR_BUFFER();
273: flag=0;
274:
275: } // END OF IF FLAG CONDITION
276:
277: EXIT: if(count>8)
278: {
279: DEL_SMS();
280: CLEAR_BUFFER();
281: count=0;
282: }
283: CLEAR_BUFFER();
284: memset(msg,NULL,15);
285:
286: ENABLE_INTERRUPTS(INT_RDA);
287:
288: while(!CHECK_COM())
289: {
290: lcd_putc("\Communicating....\n");
291: delay_ms(1000);
292: CLEAR_BUFFER();
293: output_high(PIN_B1);
294: output_low(PIN_A5);
295: output_low(PIN_B0);
296:
297: }
298: lcd_putc("\fCOMMS ARE GOOD\n");
299:
300: } // END OF INNER WHILE
301:
302: } // END OF OUTER WHILE
303:
304:
305: OUTLOOP: delay_ms(500);
306: lcd_putc("\f");
307: printf(lcd_putc,"Remote Shutdown");
308: delay_ms(500);
309: disable_interrupts (GLOBAL);
310: setup_adc(ADC_OFF);
311: output_low(PIN_B1);
312: output_low(PIN_B0);
313: output_low(PIN_B2);
314: output_low(PIN_B3);
315: output_low(PIN_A5);

5
F:\Projects\GSM PROJ\Source files\Main.c
316:
317:
318: } // END OF MAIN
319:
320:
321:

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