Add code for new guide

Author: TheKitty

PyPortal_Twin_Peaks/main.py

@@ -0,0 +1,33 @@
+# Adafruit PyPortal display of Twin Peaks
+# Liz (BlitzCityDIY) for Adafruit Industries  MIT License
+# Tutorial: https://learn.adafruit.com/twin-peaks-light-reactive-pyportal-picture-frame
+import time
+import board
+import displayio
+from analogio import AnalogIn
+from adafruit_pyportal import PyPortal
+
+analogin = AnalogIn(board.LIGHT)
+
+cwd = ("/"+__file__).rsplit('/', 1)[0]
+
+laura = (cwd+"/laura.bmp")
+
+woodsman = (cwd+"/woodsman.bmp")
+
+gottaLight = (cwd+"/gottaLight.wav")
+
+pyportal = PyPortal(default_bg=laura)
+ 
+def getVoltage(pin):  # helper
+    return (pin.value * 3.3) / 65536
+
+while True:
+        
+        if getVoltage(analogin) > 0.175:
+            pyportal.set_background(laura)
+            time.sleep(1)
+        else:
+            pyportal.set_background(woodsman)
+            pyportal.play_file(gottaLight)
+            time.sleep(1)