def __init__(self):
# Initialise library
LEDMatrix.init()
# Clear the whole display
LEDMatrix.clear_all()
# Reset brightness
LEDMatrix.brightness(3)
def low_voltage_shutdown(self):
LEDMatrix.clear_all()
# Clear GPIO
GPIO.cleanup()
command = "/usr/bin/sudo /sbin/shutdown now"
process = subprocess.Popen(command.split(), stdout=subprocess.PIPE)
output = process.communicate()[0]
def __init__(self, state, flag):
self.state = state
self.flag = flag
# Initialise library
LEDMatrix.init()
# Clear the whole display
LEDMatrix.clear_all()
# Reset brightness
LEDMatrix.brightness(3)
def display_messages(messages):
LEDMatrix.init()
try:
LEDMatrix.brightness(3)
LEDMatrix.scroll_message_horiz([messages])
LEDMatrix.clear_all()
except KeyboardInterrupt:
LEDMatrix.scroll_message_horiz(["", "Have a good PyDay!", ""], 1, 8)
LEDMatrix.clear_all()
async def exit_service(self):
"Stop movement, clean up matrices and GPIO and send a stop message to Arduino. Service is stopped from listen_for_shutdown.service"
# Stop Movement - Send message to Arduino
# await write_serial(b'S\r\n')
# Clear LED Matrices
LEDMatrix.clear_all()
# Clear GPIO
GPIO.cleanup()
# Shutdown raspberry pi
sys.exit(0)
def normal():
# Display a stationary message
a = 1
b = 0
##happy=[[0,0,1,1,1,1,0,0],[0,1,0,1,0,0,1,0],[1,0,1,0,0,1,0,1],[1,0,1,0,0,0,0,1],[1,0,1,0,0,0,0,1],[1,0,1,0,0,1,0,1],[0,1,0,1,0,0,1,0],[0,0,1,1,1,1,0,0]]
happy = [[b, b, b, b, b, b, b, b], [b, b, a, b, b, b, b, b],
[b, a, b, b, b, a, b, b], [b, a, b, b, b, b, b, b],
[b, a, b, b, b, b, b, b], [b, a, b, b, b, a, b, b],
[b, b, a, b, b, b, b, b], [b, b, b, b, b, b, b, b]]
LEDMatrix.gfx_sprite_array(happy, start_x=0, start_y=0, state=GFX_INVERT)
LEDMatrix.gfx_scroll_towards(new_graphic=GFX_OFF,
repeats=3,
speed=5,
direction=DIR_L,
finish=True)
LEDMatrix.gfx_render()
time.sleep(1)
LEDMatrix.clear_all()
while True:
for row in cur.fetchall():
mq2 = str(row[0])
mq7 = str(row[1])
mq131 = str(row[2])
mq135 = str(row[3])
mq136 = str(row[4])
pm1 = str(row[5])
pm25 = str(row[6])
pm10 = str(row[7])
print(mq2)
print(mq7)
print(mq131)
print(mq135)
print(mq136)
LEDMatrix.scroll_message_horiz(["LPG: " + mq2], 1, 5)
LEDMatrix.scroll_message_horiz(["CO: " + mq7], 1, 5)
LEDMatrix.scroll_message_horiz(["NOx: " + mq131], 1, 5)
LEDMatrix.scroll_message_horiz(["HAZ: " + mq135], 1, 5)
LEDMatrix.scroll_message_horiz(["H2S: " + mq136], 1, 5)
LEDMatrix.scroll_message_horiz(["PM1.0: " + pm1], 1, 5)
LEDMatrix.scroll_message_horiz(["PM2.5: " + pm25], 1, 5)
LEDMatrix.scroll_message_horiz(["PM10: " + pm10], 1, 5)
time.sleep(1)
LEDMatrix.clear_all()
def move():
global running, speed
if running:
newPosition = tail[0] + direction
if newPosition.x > WIDTH:
newPosition.x -= WIDTH+1
elif newPosition.x < 0:
newPosition.x += WIDTH+1
if newPosition.y > HEIGHT:
newPosition.y -= HEIGHT+1
elif newPosition.y < 0:
newPosition.y += HEIGHT+1
if newPosition == target:
tail.insert(0,newPosition)
setTarget()
speed = max(0.07, min(0.3, 2/float(len(tail))))
elif newPosition not in tail:
tail.insert(0, newPosition)
tail.pop()
else:
# Game Over
running = False
for i in range(6):
LEDMatrix.gfx_set_all(GFX_INVERT)
LEDMatrix.gfx_render()
time.sleep(0.3)
if USE_JOYPAD:
print "Game Over. Score: " + str(len(tail)-1)
else:
print "Game Over. Press any Key to exit. Score: " + str(len(tail)-1)
LEDMatrix.clear_all()
raise SystemExit("\n")
# threading for calling it every period
threading.Timer(speed, move).start ()
else:
LEDMatrix.clear_all()
display()
def warn():
a = 0
b = 1
sad = [[b, b, b, b, b, b, b, b], [b, a, b, b, b, b, b, b],
[b, b, a, b, b, a, b, b], [b, b, a, b, b, b, b, b],
[b, b, a, b, b, b, b, b], [b, b, a, b, b, a, b, b],
[b, a, b, b, b, b, b, b], [b, b, b, b, b, b, b, b]]
LEDMatrix.gfx_sprite_array(sad, start_x=0, start_y=0, state=GFX_INVERT)
LEDMatrix.gfx_scroll_towards(new_graphic=GFX_OFF,
repeats=3,
speed=5,
direction=DIR_L,
finish=True)
LEDMatrix.gfx_render()
LEDMatrix.gfx_render()
LEDMatrix.gfx_render()
time.sleep(1)
LEDMatrix.clear_all()
LEDMatrix.scroll_message_horiz(["warning"], 1, 5)
while True:
for row in cur.fetchall():
mq2 = str(row[0])
mq7 = str(row[1])
mq131 = str(row[2])
mq135 = str(row[3])
mq136 = str(row[4])
pm1 = str(row[5])
pm25 = str(row[6])
pm10 = str(row[7])
print(mq2)
print(mq7)
print(mq131)
print(mq135)
print(mq136)
LEDMatrix.scroll_message_horiz(["LPG: 2100"], 1, 5)
time.sleep(1)
LEDMatrix.clear_all()
mq131 = str(row[2])
mq135 = str(row[3])
mq136 = str(row[4])
pm1 = str(row[5])
pm25 = str(row[6])
pm10 = str(row[7])
print(mq2)
print(mq7)
print(mq131)
print(mq135)
print(mq136)
LEDMatrix.scroll_message_horiz(["LPG: " + mq2], 1, 5)
LEDMatrix.scroll_message_horiz(["CO: " + mq7], 1, 5)
LEDMatrix.scroll_message_horiz(["NOx: " + mq131], 1, 5)
LEDMatrix.scroll_message_horiz(["HAZ: " + mq135], 1, 5)
LEDMatrix.scroll_message_horiz(["H2S: " + mq136], 1, 5)
LEDMatrix.scroll_message_horiz(["PM1.0: " + pm1], 1, 5)
LEDMatrix.scroll_message_horiz(["PM2.5: " + pm25], 1, 5)
LEDMatrix.scroll_message_horiz(["PM10: " + pm10], 1, 5)
time.sleep(1)
LEDMatrix.clear_all()
try:
warn()
except KeyboardInterrupt:
# reset array
LEDMatrix.scroll_message_horiz(["Goodbye!"], 1, 6)
LEDMatrix.clear_all()
def exit_service(signal, frame):
LEDMatrix.clear_all()
GPIO.cleanup()
sys.exit(0)
def exit_service(signal, frame):
LEDMatrix.clear_all()
GPIO.cleanup()
time.sleep(1)
sys.exit()
GPIO.setup(GPIO_RIGHT, GPIO.IN) GPIO.setup(GPIO_LEFT, GPIO.IN) while running: if GPIO.input(GPIO_UP) == GPIO.HIGH: changeDirection(DIR_U) elif GPIO.input(GPIO_DOWN) == GPIO.HIGH: changeDirection(DIR_D) elif GPIO.input(GPIO_RIGHT) == GPIO.HIGH: changeDirection(DIR_R) elif GPIO.input(GPIO_LEFT) == GPIO.HIGH: changeDirection(DIR_L) time.sleep(0.1) except KeyboardInterrupt: # CTRL + C print "\nGoodbye" LEDMatrix.clear_all() time.sleep(0.1) running = False GPIO.cleanup(GPIO_UP) GPIO.cleanup(GPIO_DOWN) GPIO.cleanup(GPIO_RIGHT) GPIO.cleanup(GPIO_LEFT) else: # Use Keyboard Arrows from _Getch import _Getch getch = _Getch() print "To end the game press <q>" while running: key = ord(getch()) if key == 27: #ESC key = ord(getch())
