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mainRCC.py
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mainRCC.py
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import RPi.GPIO as GPIO
import time
# starting the GPIO and setting warnings to false
GPIO.setmode(GPIO.BCM)
# Sensors being set to GPIO
TRIG = 20 # sensor 1 output - connected to trig pin - don't change this
ECHO = 21 # sensor 1 input - connected to echo pin - don't change this
DELTA = 23 # sensor 2 out- put - connected to trig pin - don't change this
BRAVO = 24 # sensor 2 input - connected to echo pin - don't change this
# initializing/ set+ting up the sensors
GPIO.setup(TRIG, GPIO.OUT)
GPIO.setup(ECHO, GPIO.IN)
print "Sensor 1 Online"
GPIO.setup(DELTA, GPIO.OUT)
GPIO.setup(BRAVO, GPIO.IN)
print "Sensor 2 Online"
print ""
# defining variables
sensorSleep = .05 # change this for faster or slower output.
sensorSleep2 = 0.001 # necessary buffer time - don't change this
arrayOne = [] # array for sensor 1 - don't change this
arrayTwo = [] # array for sensor 2- don't change this
counter = 0 # counter for loop 1
arraySize = 25 # the number of items to be averaged - the larger the more accurate.
detArrayOne = [] # array for detecting movement - sensor one
detArrayTwo = [] # array for detecting movement - sensor two
valueOne = 1 # value for easy sizing of array - don't change
detSize = 3 # number of times it needs to be detected in a row
sensorOneDet = 0 # initializing sensor one placeholder
sensorTwoDet = 0 # initializing sensor two placeholder
roomCapacity = 0 # the actual room capacity
# ====================================
# loop to calculate average
# ====================================
print "Starting the loop to calculate average"
print " "
while counter <= arraySize:
# ==========================
# Sensor 1
# ==========================
time.sleep(sensorSleep)
GPIO.output(TRIG, False)
time.sleep(sensorSleep2)
GPIO.output(TRIG, True)
time.sleep(sensorSleep2)
GPIO.output(TRIG, False)
while GPIO.input(ECHO) == 0:
pulseStartOne = time.time()
while GPIO.input(ECHO) == 1:
pulseEndOne = time.time()
# defining distance
pulseDurationOne = pulseEndOne - pulseStartOne
distanceOne = pulseDurationOne * 17150
if True:
arrayOne.append(distanceOne) # adding each iteration to arrayOne
# =============================
# Sensor 2
# =============================
time.sleep(sensorSleep)
GPIO.output(DELTA, False)
time.sleep(sensorSleep2)
GPIO.output(DELTA, True)
time.sleep(sensorSleep2)
GPIO.output(DELTA, False)
while GPIO.input(BRAVO) == 0:
pulseStartTwo = time.time()
while GPIO.input(BRAVO) == 1:
pulseEndTwo = time.time()
# defining distance
pulseDurationTwo = pulseEndTwo - pulseStartTwo
distanceTwo = pulseDurationTwo * 17150
if True:
arrayTwo.append(distanceTwo) # adding each iteration to arrayTwo
counter += 1
# =========================================
# end of loop to compute average
# =========================================
# averageOne is distance to the floor for sensor 1
sumOne = sum(arrayOne)
averageOne = sumOne/arraySize
# averageTwo is distance to the floor for sensor 2
sumTwo = sum(arrayTwo)
averageTwo = sumTwo/arraySize
percentageAverageOne = round((averageOne / 10) * 6, 2) # 60% of the average rounded to two decimals
percentageAverageTwo = round((averageTwo / 10) * 6, 2) # 60% of the average rounded to two decimals
print "Average Sensor One: " + str(percentageAverageOne)
print "Average Sensor Two: " + str(percentageAverageTwo)
print ''
# ======================================================
# main loop
# ======================================================
time.sleep(1) # for readability purposes
try:
while True:
if distanceOne < percentageAverageOne:
detArrayOne.append(valueOne) # for sensor 1: if the distance is smaller than the average
if distanceTwo < percentageAverageTwo:
detArrayTwo.append(valueOne) # for sensor 2: if the distance is smaller than the average
if distanceOne > percentageAverageOne:
detArrayOne = [] # reintializes the array to be empty when something isn't detected
sensorOneDet = 0 # sensor one set to 0 as long as nothing is detected
if distanceTwo > percentageAverageTwo:
detArrayTwo = [] # reintializes the array to be empty when something isn't detected
sensorTwoDet = 0 # sensor two set to 0 as long as nothing is detected
if sum(detArrayOne) >= detSize:
sensorOneDet = 1 # sensor one set to 1 as long as something is under it
print 'detected - sensor 1'
print ''
if sum(detArrayTwo) >= detSize:
sensorTwoDet = 1 # sensor two set to 1 as long as something is under it
print 'detected - sensor 2'
print ''
# ===============================
# detecting someone coming in
# ===============================
if sensorOneDet = 1:
print ''
# ===============================
# detecting someone coming in
# ===============================
# ==============================
# Sensor 1
# ==============================
time.sleep(sensorSleep)
GPIO.output(TRIG, False)
time.sleep(sensorSleep2)
GPIO.output(TRIG, True)
time.sleep(sensorSleep2)
GPIO.output(TRIG, False)
while GPIO.input(ECHO) == 0:
pulseStartOne = time.time()
while GPIO.input(ECHO) == 1:
pulseEndOne = time.time()
pulseDurationOne = pulseEndOne - pulseStartOne
distanceOne = pulseDurationOne * 17150
distanceOne = round(distanceOne, 2)
if True:
print '1) ' + str(distanceOne)
# =============================
# Sensor 2
# =============================
time.sleep(sensorSleep)
GPIO.output(DELTA, False)
time.sleep(sensorSleep2)
GPIO.output(DELTA, True)
time.sleep(sensorSleep2)
GPIO.output(DELTA, False)
while GPIO.input(BRAVO) == 0:
pulseStartTwo = time.time()
while GPIO.input(BRAVO) == 1:
pulseEndTwo = time.time()
pulseDurationTwo = pulseEndTwo - pulseStartTwo
distanceTwo = pulseDurationTwo * 17150
distanceTwo = round(distanceTwo, 2)
if True:
print '2) ' + str(distanceTwo)
print ''
except KeyboardInterrupt:
GPIO.cleanup()