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Projects/tilt_buzzer/tilt_buzzer.py

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+# tilt_buzzer.py
+#
+# This is an project using the Grove Switch, Buzzer and accelerometer from the GrovePi starter kit
+# 
+# In this project, the buzzer starts making a sound when the accelerometer is held perpendicular and the Switch is on
+
+'''
+## 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
+'''
+
+import time
+from grovepi import *
+import math
+
+buzzer_pin = 2		#Port for buzzer
+switch_pin = 4		#Port for switch
+
+pinMode(buzzer_pin,"OUTPUT")	# Assign mode for buzzer as output
+pinMode(switch_pin,"INPUT")		# Assign mode for switch as input
+while True:
+	try:
+		switch_status= digitalRead(switch_pin)	#Read the switch status
+		if switch_status:	#If the switch is in HIGH position, run the program
+			accl = acc_xyz()	# Get the value from the accelerometer
+			print "\nX:",accl[0],"\tY:",accl[1],"\tZ:",accl[2],
+
+			if accl[0] > 16:	# If the value on X-axis is greater than the Threshold, start the buzzer
+				digitalWrite(buzzer_pin,1)
+				print ("\tBuzzing")
+			else:	#Else stop the buzzer
+				digitalWrite(buzzer_pin,0)
+		else:		#If switch is in Off position, print "Off" on the screen
+			print("Off")	
+		time.sleep(.1)
+	except KeyboardInterrupt:	# Stop the buzzer before stopping
+		digitalWrite(buzzer_pin,0)
+		break
+	except (IOError,TypeError) as e:
+		print("Error")