height = 32
spidev = file(dev, "wb")
#
brew1 = SpaceBrew(("Pithon DATA BAR " + str(random.randint(0,2000))),server="sandbox.spacebrew.cc")
brew1.addPublisher("pub", "range")
brew1.addSubscriber("light", "range")
# Here's a simple example of a function that recieves a value.
def example(value):
print "Got", value
updateLight(value)
# We call "subscribe" to associate a function with a subscriber.
brew1.subscribe("light",example)
brew1.start()
column = bytearray(height * 3 + 1)
# Then it's a trivial matter of writing each column to the SPI port.
print "Displaying..."
def updateLight(bright):
print "set brightness ", bright
print " leds on ", ( bright / rangeMax * height)
for y in range(height):
y3 = y * 3
newVal = 128
# open serial connection
ser = serial.Serial('/dev/ttyACM0', 9600)
# create spacebrew object and add publish and subscription channels
brew1 = SpaceBrew("Pithon Example", server="sandbox.spacebrew.cc")
brew1.addPublisher("pub")
brew1.addSubscriber("light")
# Here's a simple example of a function that recieves a value.
def forwardToArduino(value):
print "Got", value
ser.write(pack('B', value / 4))
# We call "subscribe" to associate a function with a subscriber
brew1.subscribe("light", forwardToArduino)
# Connect to spacbrew
brew1.start()
try:
while True:
# Send a test string to spacbrew every 10 seconds
brew1.publish('pub', 'bang')
time.sleep(10)
except (KeyboardInterrupt, SystemExit) as e:
# Calling stop on a brew disconnects it and waits for associated thread to finish.
brew1.stop()
# open serial connection
ser = serial.Serial('/dev/ttyACM0', 9600)
# create spacebrew object and add publish and subscription channels
brew1 = SpaceBrew("Pithon Example",server="sandbox.spacebrew.cc")
brew1.addPublisher("pub")
brew1.addSubscriber("light")
# Here's a simple example of a function that recieves a value.
def forwardToArduino(value):
print "Got",value
ser.write(pack('B',value/4))
# We call "subscribe" to associate a function with a subscriber
brew1.subscribe("light",forwardToArduino)
# Connect to spacbrew
brew1.start()
try:
while True:
# Send a test string to spacbrew every 10 seconds
brew1.publish('pub','bang')
time.sleep(10)
except (KeyboardInterrupt, SystemExit) as e:
# Calling stop on a brew disconnects it and waits for associated thread to finish.
brew1.stop()
