Diff: main.cpp

Revision:

0:4415987ca08f

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Fri May 04 14:11:45 2012 +0000
@@ -0,0 +1,101 @@
+#include "mbed.h"
+#include "stdio.h"
+#include "sms.h"                //custom sms library
+#include "SecurityMechanism.h"  //custom security mechanism library
+#include "MODSERIAL.h"          //buffer library for serial
+#include "GPS.h"                //GPS library
+#include "ADXL345.h"            //Sparkfun ADXL345 accelerometer library
+
+// System
+DigitalOut pulse(LED1); //heartbeat
+Serial pc(USBTX,USBRX); //for debugging
+
+// Peripherals
+MODSERIAL gsm(p28,p27);
+GPS gps(NC, p10);
+ADXL345 accelerometer(p5, p6, p7, p8);
+
+// Power Control
+DigitalOut gps_on(p22);
+DigitalOut gps_xstandby(p21);
+DigitalOut accelerometer_on(p20);
+//DigitalIn security_pwrd(p17);
+AnalogIn voltage_level(p19);
+
+// Global Vars
+int accel_reading[3] = {0, 0, 0};   //x, y, z coordinates of accelerometer
+int prev_accel_reading[3] = {0, 0, 0};   //x, y, z coordinates of accelerometer
+string phoneNumber = "4047849578";
+bool security_enabled = true;
+bool movement_detected = false;
+bool command_sent = false;
+#define ACCEL_THRESH 50
+
+int main() {
+    pc.printf("Initializing Program.\r\n");
+    //****init GSM    
+    GSM_init();
+    
+    //****init GPS
+    pc.printf("Initializing GPS.\r\n");
+    GPS_Time t;
+    gps.baud(4800);
+    
+    //****init accelerometer
+    accelerometer_on = 1;
+    pc.printf("Initializing Accelerometer.\r\n");
+    //Go into standby mode to configure the device.
+    accelerometer.setPowerControl(0x00);
+
+    //Full resolution, +/-16g, 4mg/LSB.
+    accelerometer.setDataFormatControl(0x0B);
+    
+    //3.2kHz data rate.
+    accelerometer.setDataRate(ADXL345_3200HZ);
+
+    //Measurement mode.
+    accelerometer.setPowerControl(0x08);
+    
+    pc.printf("Initializing Complete.\r\n");
+    
+    wait(0.4);
+
+    while(1) {
+        accelerometer.getOutput(accel_reading);
+        //check for movement
+        for (int i = 0; i < 3; i++) {
+            if (((int16_t)prev_accel_reading[i] != 0) && (int16_t)abs(accel_reading[i] - prev_accel_reading[i]) > ACCEL_THRESH) {
+                pc.printf("Movement detected\r\n");
+                movement_detected = true;
+            }
+            prev_accel_reading[i] = accel_reading[i];
+        }
+        
+        //pc.printf("Seurity system = %d\r\n", security_pwrd);
+        //security_enabled = security_pwrd;
+        
+        if (movement_detected) {
+            if (security_enabled) {
+                //turn off accelerometer
+                accelerometer_on = 0;
+                pc.printf("Alert\r\n");
+                send_location();
+                wait(30);
+            }
+        }
+        
+        if (command_sent) {
+            pc.printf("Ping.\r\n");
+            send_location();
+            command_sent = false;
+            gps_on = 0;
+            gps_xstandby = 0;
+        }
+        
+        //heartbeat
+        pulse = 1;
+        wait(0.2);
+        pulse = 0;
+        wait(0.2);
+    }
+}