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06.2_Alertor.py

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+from machine import Pin,PWM
+import math
+import time
+PI = 3.14
+b = 0
+button = Pin(16, Pin.IN, Pin.PULL_UP)
+passiveBuzzer = PWM(Pin(15))
+passiveBuzzer.freq(1000)
+pwm = PWM(Pin(14))
+pwm.freq(1000)
+led = Pin(25, Pin.OUT)
+
+def alert():
+    for x in range(0, 36):
+        sinVal  = math.sin(x * 10 * PI / 180)
+        toneVal = 1500+int(sinVal*500)
+        passiveBuzzer.freq(toneVal)
+        pwm.duty_u16(toneVal*3^x)
+        time.sleep_ms(100)
+
+
+try:
+    while True:
+        if not button.value():
+            b = b + 1
+            print(b+10)
+            while b == 1:
+                passiveBuzzer.duty_u16(4092*2)
+                pwm.duty_u16(10)
+                led.value(1)
+                alert()
+
+                time.sleep(1)
+                if  button.value():
+                    print(b)
+                else:
+                    b = 0 
+                    print(b)
+                time.sleep(2)
+        else:
+            passiveBuzzer.duty_u16(0)
+            pwm.duty_u16(0)
+            led.value(0)
+
+
+
+except:
+        passiveBuzzer.deinit()
+