;********* SIREN ALARM SYSTEM USING PASSIVE INFRARED PIR SENSOR**********

;Change START UP ROUTINE with an LED or Speaker
;Change SIREN BLAST routine with a new siren sound

#Picaxe08M2
#No_Data
;******************Start Up Routine*********************************

; Put your start up routine Here!

;******************START OF MAIN LOOP*****************************

main:
if pin3 = 1 then gosub siren_blast  	;when switch is pushed go subroutine siren_blast
nap 4 							; small low power sleep
goto main

;****************END OF MAIN LOOP*******************************

siren_blast:   					;Use PWMOUT to make a siren sound
high 4 						  ;Turn the LED on Pin4

for b0 = 90 to 145 step 2  		;Change b0 values to lower, slower,faster
for b5 = 10 to 30 step 10 			;Change B5 steps
b1 = b0 ;/ 233 / 100; 144
pwmout pwmdiv4, 2, b0, 309 
pwmout pwmdiv4, 2, b1, 309 
pause b5
next b5
next 					;

for b0 = 145 to 90 step -2 		;Change b0 values to lower, slower,faster
for b5 = 10 to 30 step 10
b1 = b0 ;/ 233 / 100; 144
pwmout pwmdiv4, 2, b0, 309 
pwmout pwmdiv4, 2, b1, 309 
pause b5
next b5
next 
INPUT 2 						;Shutdown electrical noise caused by PWM

low 4 						    ; Turn off the LED on Pin4
return