diff --git a/code/test/interrupts.py b/code/test/interrupts.py
new file mode 100644
index 0000000..3a5759b
--- /dev/null
+++ b/code/test/interrupts.py
@@ -0,0 +1,40 @@
+import RPi.GPIO as GPIO
+from time import gmtime, strftime
+
+GPIO.setmode(GPIO.BCM)
+
+# Buttons on PINs 9, 10 and 11
+GPIO.setup(9, GPIO.IN, pull_up_down=GPIO.PUD_UP)
+GPIO.setup(10, GPIO.IN, pull_up_down=GPIO.PUD_UP)
+GPIO.setup(11, GPIO.IN, pull_up_down=GPIO.PUD_UP)
+
+#sensor on PIN 17
+GPIO.setup(17, GPIO.IN, pull_up_down=GPIO.PUD_DOWN)
+
+def btn1_callback(channel):
+    print("falling edge detected on 9")
+
+def btn2_callback(channel):
+    print("falling edge detected on 10")
+
+def btn3_callback(channel):
+    print("falling edge detected on 11")
+
+
+print(strftime("%Y-%m-%d %H:%M:%S", gmtime()))
+
+GPIO.add_event_detect(9, GPIO.FALLING, callback=btn1_callback, bouncetime=300)
+GPIO.add_event_detect(10, GPIO.FALLING, callback=btn2_callback, bouncetime=300)
+GPIO.add_event_detect(11, GPIO.FALLING, callback=btn3_callback, bouncetime=300)
+
+try:
+    GPIO.wait_for_edge(17, GPIO.RISING)
+    print('Edge detected on channel 17')
+
+
+
+except KeyboardInterrupt:
+    print("Keyboard Interrupt")
+finally:
+    GPIO.cleanup()
+    print("Cleaned up pins")
diff --git a/misc/electronics-final.fzz b/misc/electronics-final.fzz
index 2f62a2d..c40432f 100644
Binary files a/misc/electronics-final.fzz and b/misc/electronics-final.fzz differ
diff --git a/notes.md b/notes.md
index a608561..ee1da2f 100644
--- a/notes.md
+++ b/notes.md
@@ -24,6 +24,7 @@
 
 ## Gehäuse
 - Buttons per Acryl-Transfer beschriften? ch.16.05.110-115.pdf
+- Beim Zusammenbau Kamera vor dem Verkleben testen