Added Day #7 and edit Readme

7-dezember.py

@@ -0,0 +1,63 @@
+
+# Imports
+from machine import Pin, PWM
+import time
+
+# Set up the LED pins
+red = Pin(18, Pin.OUT)
+amber = Pin(19, Pin.OUT)
+green = Pin(20, Pin.OUT)
+
+# Set up the Buzzer pin as PWM
+buzzer = PWM(Pin(13))
+
+# Set PWM duty to 0% at program start
+buzzer.duty_u16(0)
+ 
+# Set up PIR pin with pull down
+pir = Pin(26, Pin.IN, Pin.PULL_DOWN)
+
+# Warm up/settle PIR sensor
+print("Warming up...")
+time.sleep(10) # Delay to allow the sensor to settle
+print("Sensor ready!")
+
+def alarm(): # Our alarm function
+    
+    # Set PWM duty (volume up)
+    buzzer.duty_u16(500)
+
+    for i in range(5): # Run this 5 times
+                
+        buzzer.freq(1000) # Higher pitch
+        
+        red.value(1) # Red ON
+        amber.value(1) # Amber ON
+        green.value(1) # Green ON
+        
+        time.sleep(1)
+        
+        buzzer.freq(500) # Lower pitch
+        
+        red.value(0) # Red OFF
+        amber.value(0) # Amber OFF
+        green.value(0) # Green OFF
+        
+        time.sleep(1)
+
+    # Set PWM duty (volume off)
+    buzzer.duty_u16(0)
+        
+while True: # Run forever
+    
+    time.sleep(0.01) # Delay to stop unnecessary program speed
+    
+    if pir.value() == 1: # If PIR detects movement
+        
+        print("Bewegung erkannt!")
+    
+        alarm() # Call our function
+        
+        print("Sensor aktiv") # Let us know that the sensor is active again
+
+

README.md

@@ -72,5 +72,21 @@ So, what did we learn today? Today we:
 
 ------------------------------------------------------------------------------------------------------
 
+Day 7 Complete!
+
+That last activity included a lot of detail so we're going to leave it there for today and not overload your fresh coder brains!
+
+The PIR sensor can be so much fun to use and they come in all different shapes and sizes too, you'll be making your own home security system in no time.
+
+So what did we cover on day #7? Today you have:
+
+    Built a circuit with a PIR sensor
+    Learnt how to use a PIR sensor with MicroPython and the Pico
+    Created a mini alarm system!
+    Learnt about the range function
+    Revisited functions
+
+------------------------------------------------------------------------------------------------------
+
 <img src="https://git.unixweb.net/unixweb/pihut-advent-kalender/raw/branch/master/images/pihut-advent-kalender.jpg">