Gordon Sulc / Mbed 2 deprecated AntiTheftGPS

Tracks GPS coordinates of an asset. Uses: GPS GSM Accelerometer mbed

Dependencies:   mbed MODSERIAL ADXL345 MODGPS

main.cpp@0:4415987ca08f, 2012-05-04 (annotated)

Committer:
gsulc
Date:
Fri May 04 14:11:45 2012 +0000
Revision:
0:4415987ca08f
v0.5

Who changed what in which revision?

UserRevisionLine numberNew contents of line
gsulc 0:4415987ca08f 1 #include "mbed.h"
gsulc 0:4415987ca08f 2 #include "stdio.h"
gsulc 0:4415987ca08f 3 #include "sms.h" //custom sms library
gsulc 0:4415987ca08f 4 #include "SecurityMechanism.h" //custom security mechanism library
gsulc 0:4415987ca08f 5 #include "MODSERIAL.h" //buffer library for serial
gsulc 0:4415987ca08f 6 #include "GPS.h" //GPS library
gsulc 0:4415987ca08f 7 #include "ADXL345.h" //Sparkfun ADXL345 accelerometer library
gsulc 0:4415987ca08f 8
gsulc 0:4415987ca08f 9 // System
gsulc 0:4415987ca08f 10 DigitalOut pulse(LED1); //heartbeat
gsulc 0:4415987ca08f 11 Serial pc(USBTX,USBRX); //for debugging
gsulc 0:4415987ca08f 12
gsulc 0:4415987ca08f 13 // Peripherals
gsulc 0:4415987ca08f 14 MODSERIAL gsm(p28,p27);
gsulc 0:4415987ca08f 15 GPS gps(NC, p10);
gsulc 0:4415987ca08f 16 ADXL345 accelerometer(p5, p6, p7, p8);
gsulc 0:4415987ca08f 17
gsulc 0:4415987ca08f 18 // Power Control
gsulc 0:4415987ca08f 19 DigitalOut gps_on(p22);
gsulc 0:4415987ca08f 20 DigitalOut gps_xstandby(p21);
gsulc 0:4415987ca08f 21 DigitalOut accelerometer_on(p20);
gsulc 0:4415987ca08f 22 //DigitalIn security_pwrd(p17);
gsulc 0:4415987ca08f 23 AnalogIn voltage_level(p19);
gsulc 0:4415987ca08f 24
gsulc 0:4415987ca08f 25 // Global Vars
gsulc 0:4415987ca08f 26 int accel_reading[3] = {0, 0, 0}; //x, y, z coordinates of accelerometer
gsulc 0:4415987ca08f 27 int prev_accel_reading[3] = {0, 0, 0}; //x, y, z coordinates of accelerometer
gsulc 0:4415987ca08f 28 string phoneNumber = "4047849578";
gsulc 0:4415987ca08f 29 bool security_enabled = true;
gsulc 0:4415987ca08f 30 bool movement_detected = false;
gsulc 0:4415987ca08f 31 bool command_sent = false;
gsulc 0:4415987ca08f 32 #define ACCEL_THRESH 50
gsulc 0:4415987ca08f 33
gsulc 0:4415987ca08f 34 int main() {
gsulc 0:4415987ca08f 35 pc.printf("Initializing Program.\r\n");
gsulc 0:4415987ca08f 36 //****init GSM
gsulc 0:4415987ca08f 37 GSM_init();
gsulc 0:4415987ca08f 38
gsulc 0:4415987ca08f 39 //****init GPS
gsulc 0:4415987ca08f 40 pc.printf("Initializing GPS.\r\n");
gsulc 0:4415987ca08f 41 GPS_Time t;
gsulc 0:4415987ca08f 42 gps.baud(4800);
gsulc 0:4415987ca08f 43
gsulc 0:4415987ca08f 44 //****init accelerometer
gsulc 0:4415987ca08f 45 accelerometer_on = 1;
gsulc 0:4415987ca08f 46 pc.printf("Initializing Accelerometer.\r\n");
gsulc 0:4415987ca08f 47 //Go into standby mode to configure the device.
gsulc 0:4415987ca08f 48 accelerometer.setPowerControl(0x00);
gsulc 0:4415987ca08f 49
gsulc 0:4415987ca08f 50 //Full resolution, +/-16g, 4mg/LSB.
gsulc 0:4415987ca08f 51 accelerometer.setDataFormatControl(0x0B);
gsulc 0:4415987ca08f 52
gsulc 0:4415987ca08f 53 //3.2kHz data rate.
gsulc 0:4415987ca08f 54 accelerometer.setDataRate(ADXL345_3200HZ);
gsulc 0:4415987ca08f 55
gsulc 0:4415987ca08f 56 //Measurement mode.
gsulc 0:4415987ca08f 57 accelerometer.setPowerControl(0x08);
gsulc 0:4415987ca08f 58
gsulc 0:4415987ca08f 59 pc.printf("Initializing Complete.\r\n");
gsulc 0:4415987ca08f 60
gsulc 0:4415987ca08f 61 wait(0.4);
gsulc 0:4415987ca08f 62
gsulc 0:4415987ca08f 63 while(1) {
gsulc 0:4415987ca08f 64 accelerometer.getOutput(accel_reading);
gsulc 0:4415987ca08f 65 //check for movement
gsulc 0:4415987ca08f 66 for (int i = 0; i < 3; i++) {
gsulc 0:4415987ca08f 67 if (((int16_t)prev_accel_reading[i] != 0) && (int16_t)abs(accel_reading[i] - prev_accel_reading[i]) > ACCEL_THRESH) {
gsulc 0:4415987ca08f 68 pc.printf("Movement detected\r\n");
gsulc 0:4415987ca08f 69 movement_detected = true;
gsulc 0:4415987ca08f 70 }
gsulc 0:4415987ca08f 71 prev_accel_reading[i] = accel_reading[i];
gsulc 0:4415987ca08f 72 }
gsulc 0:4415987ca08f 73
gsulc 0:4415987ca08f 74 //pc.printf("Seurity system = %d\r\n", security_pwrd);
gsulc 0:4415987ca08f 75 //security_enabled = security_pwrd;
gsulc 0:4415987ca08f 76
gsulc 0:4415987ca08f 77 if (movement_detected) {
gsulc 0:4415987ca08f 78 if (security_enabled) {
gsulc 0:4415987ca08f 79 //turn off accelerometer
gsulc 0:4415987ca08f 80 accelerometer_on = 0;
gsulc 0:4415987ca08f 81 pc.printf("Alert\r\n");
gsulc 0:4415987ca08f 82 send_location();
gsulc 0:4415987ca08f 83 wait(30);
gsulc 0:4415987ca08f 84 }
gsulc 0:4415987ca08f 85 }
gsulc 0:4415987ca08f 86
gsulc 0:4415987ca08f 87 if (command_sent) {
gsulc 0:4415987ca08f 88 pc.printf("Ping.\r\n");
gsulc 0:4415987ca08f 89 send_location();
gsulc 0:4415987ca08f 90 command_sent = false;
gsulc 0:4415987ca08f 91 gps_on = 0;
gsulc 0:4415987ca08f 92 gps_xstandby = 0;
gsulc 0:4415987ca08f 93 }
gsulc 0:4415987ca08f 94
gsulc 0:4415987ca08f 95 //heartbeat
gsulc 0:4415987ca08f 96 pulse = 1;
gsulc 0:4415987ca08f 97 wait(0.2);
gsulc 0:4415987ca08f 98 pulse = 0;
gsulc 0:4415987ca08f 99 wait(0.2);
gsulc 0:4415987ca08f 100 }
gsulc 0:4415987ca08f 101 }