Added Day #9 and edit Readme

9-dezember.py

@@ -0,0 +1,37 @@
+# Imports
+from machine import Pin
+import time
+
+gruen = Pin(18, Pin.OUT)
+gelb = Pin(19, Pin.OUT)
+rot = Pin(20, Pin.OUT)
+
+
+# Set up tilt sensor pin
+tilt = Pin(26, Pin.IN, Pin.PULL_DOWN)
+
+# Set up a counter variable at zero
+tiltcount = 0
+
+# Create a state variable at zero
+state = 0
+
+while True: # Run forever
+    
+    time.sleep(1.1) # Short delay
+    rot.value(1)
+
+        
+    if state == 0 and tilt.value() == 1: # If state is 0 and our pin is HIGH
+         rot.value(0)           
+         tiltcount = tiltcount + 1 # Add +1 to tiltcount
+            
+         state = 1 # Change state to 1
+            
+         print("tilts =",tiltcount) # Print our new tiltcount
+            
+    if state == 1 and tilt.value() == 0: # If state is 1 and our pin is LOW
+                     
+        state = 0 # Change the state to 0
+        
+

README.md

@@ -104,5 +104,19 @@ So what did we cover on day #8? Today you have:
 
 ------------------------------------------------------------------------------------------------------
 
+Day 9 Complete!
+
+Well done makers, we've cracked another sensor. Today's sensor (some might call it a switch) was a little easier than others, especially as you're now so familiar with MicroPython and the approaches we're taking, but we thought a little breather would be good before we adventure on to the fun yet slightly-more-advanced goodies in the final three boxes!
+
+Today you have:
+
+    Learnt what a tilt sensor/switch is and why you might use one
+    Learnt how to wire a tilt sensor into your circuit (easy peasy!)
+    How to use variables and if statements in a way that improves the robustness and accuracy of our project
+    Made a basic tilt alarm
+    Re-used lots of things you've already learnt!
+
+------------------------------------------------------------------------------------------------------
+
 <img src="https://git.unixweb.net/unixweb/pihut-advent-kalender/raw/branch/master/images/pihut-advent-kalender.jpg">