Untitled

from gpio import * # imports all modules in the GPIO library
from time import * # imports all modules in the time library

switchValue = 0 # initialize Switch sensor value global variable to 0
togglePushButtonValue = 0 # initialize Toggle Push Button sensor value global variable to 0
potentiometerValue = 0 # initialize Potentiometer sensor value global variable to 0
flexSensorValue = 0 # initialize Flex Sensor value global variable to 0

def readFromSensors():
	global switchValue # declare switchValue as global
	global togglePushButtonValue # declare togglePushButtonValue as global
	global potentiometerValue # declare potentiometerValue as global
	global flexSensorValue # declare flexSensorValue as global
	
	switchValue = digitalRead(0) # read Switch sensor value
	togglePushButtonValue = digitalRead(1) # read Toggle Push Button sensor value
	potentiometerValue = analogRead(A0) # read Potentiometer sensor value
	flexSensorValue = analogRead(A1) # read Flex Sensor value

def writeToActuators():
	if (switchValue == HIGH): # evaluates to True if the Switch sensor value is digital HIGH, otherwise false
		customWrite(2, "2") # turn on the Light
	else:
		customWrite(2, "0") # turn off the Light

	if (togglePushButtonValue == HIGH): # evaluates to True if the Toggle Push Button sensor value is digital HIGH, otherwise false
		digitalWrite(3, HIGH) # turn on the LED
	else:
		digitalWrite(3, LOW) # turn off the LED

	if (potentiometerValue > 512): # evaluates to True if the Potentiometer is turned at least half way
		customWrite(4, HIGH) # turn on the Siren
	else:
		customWrite(4, LOW) # turn off the Siren

	if (flexSensorValue > 0): # evaluates to True if the Flex Sensor is bent, otherwise false
		analogWrite(5, flexSensorValue) # turn on the motor with speed equal to the Flex Sensor value
	else:
		analogWrite(5, 0) # turn off the motor

def main(): # defines the main function
	pinMode(0, IN) # sets digital slot 0 (Switch) to input
	pinMode(1, IN) # sets digital slot 1 (Toggle Push Button) to input
	pinMode(2, OUT) # sets digital slot 2 (Light) to output
	pinMode(3, OUT) # sets digital slot 3 (LED) to output
	pinMode(4, OUT) # sets digital slot 4 (Siren) to output
	
	while True: # loop indefinitely
		readFromSensors() # call the readFromSensors function
		writeToActuators() # call the writeToActuators function
		delay(1000) # delay script execution for 1000 ms

if __name__ == "__main__": # Evaluates to True if this module is the script being executed, otherwise False if this module is being imported into another module
	main() # call the main function