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Software/Python/grove_switch_relay.py

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+#!/usr/bin/env python
+#
+# GrovePi Example for using the Grove Switch and the Grove Relay
+#
+# Modules:
+# 	http://www.seeedstudio.com/wiki/Grove_-_Switch(P)
+# 	http://www.seeedstudio.com/wiki/Grove_-_Relay
+#
+# The GrovePi connects the Raspberry Pi and Grove sensors.  You can learn more about GrovePi here:  http://www.dexterindustries.com/GrovePi
+#
+# Have a question about this example?  Ask on the forums here:  http://forum.dexterindustries.com/c/grovepi
+#
+
+'''
+## License
+
+The MIT License (MIT)
+
+GrovePi for the Raspberry Pi: an open source platform for connecting Grove Sensors to the Raspberry Pi.
+Copyright (C) 2017  Dexter Industries
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+'''
+
+import time
+import grovepi
+
+# Connect the Grove Switch to digital port D3
+# SIG,NC,VCC,GND
+switch = 3
+
+# Connect the Grove Relay to digital port D4
+# SIG,NC,VCC,GND
+relay = 4
+
+grovepi.pinMode(switch,"INPUT")
+grovepi.pinMode(relay,"OUTPUT")
+
+while True:
+    try:
+        if grovepi.digitalRead(switch):
+            grovepi.digitalWrite(relay,1)
+        else:
+            grovepi.digitalWrite(relay,0)
+
+        time.sleep(.5)
+
+    except KeyboardInterrupt:
+        grovepi.digitalWrite(relay,0)
+        break
+    except IOError:
+        print ("Error")