def data_from_light_sensor():
# create a list of binary data
data = []
# GPIO pin set up
GPIO.setup(light_clk, GPIO.OUT)
GPIO.setup(light_cs, GPIO.OUT)
GPIO.setup(light_pin, GPIO.IN)
# Set ligth_cs to be high to start up light sensor
GPIO.output(light_cs, GPIO.HIGH)
# Give a time for light sensor to be stable
time.sleep(0.5)
# Collecting data
for j in range(0,1):
# Set light_cs to be low to start collecting data
GPIO.output(light_cs, GPIO.LOW)
for i in range(0,16):
time.sleep(0.1)
GPIO.output(light_clk, GPIO.LOW)
time.sleep(0.1)
GPIO.output(light_clk, GPIO.HIGH)
# put data into list
data.insert(i,GPIO.input(light_pin))
# Set light_cs back to high again
GPIO.output(light_cs, GPIO.HIGH)
# the first 5 bits and the last 5 bits are useless
del data[12:16]
del data[0:4]
# Convert data to decimal
result = convert_to_tens(data)
return result
import PRi.GPIO as GPIO
import time
GPIO.setmode(GPIO.BOARD)
GPIO.setup(7, GPIO.OUT)
GPIO.setup(11, GPIO.OUT)
GPIO.setup(13, GPIO.OUT)
for x in range(0, 7):
GPIO.output(7, True)
time.sleep(.5)
GPIO.output(7, False)
GPIO.output(11, True)
time.sleep(.5)
GPIO.output(11, False)
GPIO.output(13, True)
time.sleep(.5)
GPIO.output(13, False)
GPIO.cleanup()
