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SMART CLEO Intruder Detection System

main.cpp@0:98b619522ddd, 2017-12-06 (annotated)

Committer:
SMART_CLEO
Date:
Wed Dec 06 08:54:55 2017 +0000
Revision:
0:98b619522ddd
SMART_CLEO

Who changed what in which revision?

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SMART_CLEO 0:98b619522ddd 1 #include "mbed.h"
SMART_CLEO 0:98b619522ddd 2
SMART_CLEO 0:98b619522ddd 3 PinName pin_BUZZER = PD_2;
SMART_CLEO 0:98b619522ddd 4 PinName pin_PIR = PB_2;
SMART_CLEO 0:98b619522ddd 5
SMART_CLEO 0:98b619522ddd 6 // I2C address
SMART_CLEO 0:98b619522ddd 7 int DoT_ADDR = 0x71<<1;
SMART_CLEO 0:98b619522ddd 8
SMART_CLEO 0:98b619522ddd 9 DigitalOut Buzzer(pin_BUZZER);
SMART_CLEO 0:98b619522ddd 10 InterruptIn Pir(pin_PIR);
SMART_CLEO 0:98b619522ddd 11 I2C Dotmatrix(I2C_SDA, I2C_SCL);
SMART_CLEO 0:98b619522ddd 12
SMART_CLEO 0:98b619522ddd 13 //char Data_BUF[17] = {0, 0x28, 0, 0x28, 0, 0xBA, 0, 0xBA, 0, 0x7C, 0, 0x10, 0, 0x38, 0, 0x38, 0};
SMART_CLEO 0:98b619522ddd 14 char Data_BUF[17] = {0, 0x14, 0, 0x14, 0, 0x5D, 0, 0x5D, 0, 0x3E, 0, 0x08, 0, 0x1C, 0, 0x1C, 0};
SMART_CLEO 0:98b619522ddd 15 char Clear_BUF[17] = {0, 0 ,0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
SMART_CLEO 0:98b619522ddd 16 volatile int pir_flag = 0, Intruder_flag = 0, Blink_flag = 0;
SMART_CLEO 0:98b619522ddd 17
SMART_CLEO 0:98b619522ddd 18 void PIR_ISR(void);
SMART_CLEO 0:98b619522ddd 19 void data_write(char *data, int len);
SMART_CLEO 0:98b619522ddd 20 void Command_Write(uint8_t com);
SMART_CLEO 0:98b619522ddd 21 void Dotmatrix_init(void);
SMART_CLEO 0:98b619522ddd 22
SMART_CLEO 0:98b619522ddd 23 int main()
SMART_CLEO 0:98b619522ddd 24 {
SMART_CLEO 0:98b619522ddd 25 Dotmatrix_init();
SMART_CLEO 0:98b619522ddd 26 data_write(Clear_BUF, 17);
SMART_CLEO 0:98b619522ddd 27
SMART_CLEO 0:98b619522ddd 28 Pir.rise(&PIR_ISR);
SMART_CLEO 0:98b619522ddd 29 Buzzer = 0;
SMART_CLEO 0:98b619522ddd 30
SMART_CLEO 0:98b619522ddd 31 while(1){
SMART_CLEO 0:98b619522ddd 32 if(pir_flag == 1)
SMART_CLEO 0:98b619522ddd 33 {
SMART_CLEO 0:98b619522ddd 34 Intruder_flag = 1;
SMART_CLEO 0:98b619522ddd 35 pir_flag = 0;
SMART_CLEO 0:98b619522ddd 36 }
SMART_CLEO 0:98b619522ddd 37 else
SMART_CLEO 0:98b619522ddd 38 {
SMART_CLEO 0:98b619522ddd 39 Intruder_flag = 0;
SMART_CLEO 0:98b619522ddd 40 }
SMART_CLEO 0:98b619522ddd 41 if((Intruder_flag == 1) && (Blink_flag ==0))
SMART_CLEO 0:98b619522ddd 42 {
SMART_CLEO 0:98b619522ddd 43 Blink_flag = 1;
SMART_CLEO 0:98b619522ddd 44 data_write(Data_BUF, 17);
SMART_CLEO 0:98b619522ddd 45 Buzzer = 1;
SMART_CLEO 0:98b619522ddd 46 }
SMART_CLEO 0:98b619522ddd 47 else
SMART_CLEO 0:98b619522ddd 48 {
SMART_CLEO 0:98b619522ddd 49 Blink_flag = 0;
SMART_CLEO 0:98b619522ddd 50 data_write(Clear_BUF, 17);
SMART_CLEO 0:98b619522ddd 51 Buzzer = 0;
SMART_CLEO 0:98b619522ddd 52 }
SMART_CLEO 0:98b619522ddd 53 wait(0.5);
SMART_CLEO 0:98b619522ddd 54 }
SMART_CLEO 0:98b619522ddd 55 }
SMART_CLEO 0:98b619522ddd 56
SMART_CLEO 0:98b619522ddd 57 void PIR_ISR(void)
SMART_CLEO 0:98b619522ddd 58 {
SMART_CLEO 0:98b619522ddd 59 pir_flag = 1;
SMART_CLEO 0:98b619522ddd 60 }
SMART_CLEO 0:98b619522ddd 61
SMART_CLEO 0:98b619522ddd 62 void data_write(char *data, int len)
SMART_CLEO 0:98b619522ddd 63 {
SMART_CLEO 0:98b619522ddd 64 data[0] = 0;
SMART_CLEO 0:98b619522ddd 65 Dotmatrix.write(DoT_ADDR, data, len);
SMART_CLEO 0:98b619522ddd 66 }
SMART_CLEO 0:98b619522ddd 67
SMART_CLEO 0:98b619522ddd 68 void Command_Write(char com)
SMART_CLEO 0:98b619522ddd 69 {
SMART_CLEO 0:98b619522ddd 70 Dotmatrix.write(DoT_ADDR, &com, 1);
SMART_CLEO 0:98b619522ddd 71 }
SMART_CLEO 0:98b619522ddd 72
SMART_CLEO 0:98b619522ddd 73 void Dotmatrix_init(void)
SMART_CLEO 0:98b619522ddd 74 {
SMART_CLEO 0:98b619522ddd 75 // Internal System Clock enable
SMART_CLEO 0:98b619522ddd 76 Command_Write((char)0x21);
SMART_CLEO 0:98b619522ddd 77 // INT/ROW output pin Set -> ROW Driver output
SMART_CLEO 0:98b619522ddd 78 Command_Write((char)0xA0);
SMART_CLEO 0:98b619522ddd 79 // Dimming Set -> 15
SMART_CLEO 0:98b619522ddd 80 Command_Write((char)0xEF);
SMART_CLEO 0:98b619522ddd 81 // Blinking Set -> off
SMART_CLEO 0:98b619522ddd 82 // Display Set -> on
SMART_CLEO 0:98b619522ddd 83 Command_Write((char)0x81);
SMART_CLEO 0:98b619522ddd 84 }