James Boakye
/
iotcam_motiondetector
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Dependencies: C12832 LM75B MMA7660 mbed
Revision 0:1e8a4f2f850b, committed 2016-01-25
- Comitter:
- co657_jkb30
- Date:
- Mon Jan 25 00:47:17 2016 +0000
- Commit message:
- IOT Group work
Changed in this revision
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/C12832.lib Mon Jan 25 00:47:17 2016 +0000 @@ -0,0 +1,1 @@ +https://mbed.org/users/chris/code/C12832/#7de323fa46fe
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/LM75B.lib Mon Jan 25 00:47:17 2016 +0000 @@ -0,0 +1,1 @@ +http://developer.mbed.org/users/chris/code/LM75B/#6a70c9303bbe
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/MMA7660.lib Mon Jan 25 00:47:17 2016 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/Sissors/code/MMA7660/#36a163511e34
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Mon Jan 25 00:47:17 2016 +0000
@@ -0,0 +1,141 @@
+#include "mbed.h"
+#include "C12832.h" /* for the LCD */
+#include "LM75B.h" /* for the temperature sensor */
+#include "MMA7660.h"
+#include "stdio.h"
+
+
+
+DigitalOut xr_led (LED1); /* red LED */
+DigitalOut xg_led (LED2); /* green LED */
+DigitalOut xb_led (LED3); /* blue LED */
+
+
+PwmOut intr_alarm(D6) ;
+
+InterruptIn sw2_int (PTC6); /* interrupt for sw2 button on mbed */
+InterruptIn sw3_int (PTA4); /* interrupt for sw3 button on mbed */
+
+Serial host (USBTX, USBRX); /* to-host UART via OpenSDAv2 *///
+
+MMA7660 MMA(D14, D15); /* accelerometer */
+
+C12832 shld_lcd (D11, D13, D12, D7, D10); /* LCD on the shield (128x32) */
+
+static volatile int triggered = 0; /* variable to decide whether alarm has been triggred */
+
+
+float x,y,z; /* float variables for acceleromter */
+
+
+
+void sw3_interrupt (void) /* this method disarms the motion detector alarm */
+{
+ triggered = 0;
+ xr_led = 1;
+ xg_led =1;
+ xb_led =1;
+
+ shld_lcd.cls();
+ shld_lcd.locate(0,0);
+ shld_lcd.printf ("Disarmed");
+
+}
+
+
+void sw2_interrupt (void) /* this method checks if the sw2 buttin has been pressed.If so It arsm the motion sendsor */
+{
+ if (triggered == 0) { x=MMA.x();
+ y=MMA.y();
+ z=MMA.z();
+
+ triggered = 1;
+
+ shld_lcd.cls();
+ shld_lcd.locate(0,0);
+ shld_lcd.printf ("Armed");
+
+
+ }
+ }
+
+/* Main code stars here */
+
+
+
+int main (void )
+{
+
+shld_lcd.printf ("Disarmed"); /* LCD Shows that alarm is initially disarmed */
+
+
+ xr_led = 1; /* LED lights are off to begin with */
+ xg_led =1;
+ xb_led =1;
+
+
+
+ sw2_int.mode (PullUp); /* */
+ sw2_int.fall (&sw2_interrupt);
+
+ sw3_int.mode (PullUp);
+ sw3_int.fall (&sw3_interrupt);
+
+
+ while (true) { /* check if there is a difference in acclorometer position */
+
+ if (triggered ==1) { /* when armed */
+ float px = MMA.x(); float py = MMA.y(); float pz = MMA.z();
+ float diff = abs(x-px) + abs(y-py) + abs(z-pz);
+ if (diff>0.3f) { /* difference check occurs here */
+
+ shld_lcd.locate(0,0);
+ shld_lcd.printf ("Intruder Detected"); /* intruduer detected LCD code */
+
+
+ /* Alarm triggered here once intruder has been detected */
+
+ while (triggered ==1){
+ for (float i=2000.0; i<10000.0; i+=100) {
+ float f = i;
+ intr_alarm.period(1.0/f);
+ intr_alarm=0.7;
+ wait(0.005);
+ }
+
+ /* Different colours for LED when Intruder detected */
+ intr_alarm=0.0;
+ xr_led = 0;
+
+
+ wait(0.5);
+
+ xr_led = 1;
+
+
+
+
+ xg_led =0;
+
+
+ wait(0.5); /* led particular light colour displays for 0.5 secs */
+
+ xg_led =1;
+
+
+
+ xb_led =0;
+
+
+ wait(0.5);
+
+ xb_led =1;
+
+ }
+ }
+
+
+ }
+
+ }
+}
\ No newline at end of file
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Mon Jan 25 00:47:17 2016 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/6f327212ef96 \ No newline at end of file