# GPIO setup
GPIO.setmode(GPIO.BOARD)
GPIO.setup(SHOT_PIN, GPIO.IN, pull_up_down=GPIO.PUD_UP)
GPIO.setup(PRINT_PIN, GPIO.IN, pull_up_down=GPIO.PUD_UP)
GPIO.setup(NEXT_PIN, GPIO.IN, pull_up_down=GPIO.PUD_UP)
GPIO.setup(PREV_PIN, GPIO.IN, pull_up_down=GPIO.PUD_UP)
GPIO.setup(HALT_PIN, GPIO.IN, pull_up_down=GPIO.PUD_UP)
# add edge detection on a channel
GPIO.add_event_detect(SHOT_PIN, GPIO.FALLING, bouncetime=1000)
GPIO.add_event_detect(PRINT_PIN, GPIO.FALLING, bouncetime=1000)
GPIO.add_event_detect(NEXT_PIN, GPIO.FALLING, bouncetime=400)
GPIO.add_event_detect(PREV_PIN, GPIO.FALLING, bouncetime=400)
# Create Sharp mempry LCD
lcd = SMemLCD('/dev/spidev0.0')
# Create Printer
printer = Adafruit_Thermal("/dev/ttyAMA0", 115200, timeout=0, rtscts=True)
# Create camera and in-memory stream
stream = BytesIO()
camera = PiCamera()
camera.rotation = 180
camera.resolution = F_SIZE
camera.framerate = 20
camera.contrast = 50
camera.exposure_mode = 'night'
camera.start_preview()
sleep(1)
img.paste(0)
center(draw, 60, 'smemlcd library demo', font)
s = 'closing in {:02d}...'.format(i)
center(draw, 100, s, font)
draw.rectangle((5, 120, 395, 140), outline='white')
draw.rectangle((6, 121, 6 + 393 * (60 - i) / 60, 139), outline='white', fill='white')
sw = time.monotonic()
await lcd.write_async(img.tobytes())
end = time.monotonic()
print('time: process={:.4f}, write={:.4f}'.format(end - start, end - sw))
await asyncio.sleep(0.2)
loop = asyncio.get_event_loop()
lcd = SMemLCD(args.device, loop=loop)
lcd.width = 50
lcd.reversed = False
try:
loop.run_until_complete(run(lcd))
finally:
loop.close()
lcd.close()
# vim: sw=4:et:ai
parser = argparse.ArgumentParser(description='smemlcd library example')
parser.add_argument('-f', dest='font', nargs=1, help='TrueType font filename')
parser.add_argument('device', help='SPI device filename, i.e. /dev/spi')
args = parser.parse_args()
WIDTH, HEIGHT = 400, 240
def center(draw, y, txt, font):
w, h = draw.textsize(txt, font=font)
x = int((WIDTH - w) / 2)
draw.text((x, y), txt, fill='white', font=font)
lcd = SMemLCD(args.device)
img = PIL.Image.new('1', (WIDTH, HEIGHT))
draw = PIL.ImageDraw.Draw(img)
if args.font:
font = PIL.ImageFont.truetype(args.font[0], size=30)
else:
font = PIL.ImageFont.load_default()
for i in range(60, -1, -1):
img.paste(0)
center(draw, 60, 'smemlcd library demo', font)
s = 'closing in {:02d}...'.format(i)
center(draw, 100, s, font)
from smemlcd import SMemLCD
GPIO.setmode(GPIO.BOARD)
GPIO.setup(22, GPIO.OUT, initial=GPIO.LOW)
WIDTH, HEIGHT = 400, 240
# Create the in-memory stream
stream = BytesIO()
camera = PiCamera()
camera.resolution = (864, 576)
camera.start_preview()
camera.contrast = 25
time.sleep(2)
lcd = SMemLCD('/dev/spidev0.0')
for i in range(100, -1, -1):
t1 = time.time()
camera.capture(stream,
format='jpeg',
use_video_port=True,
resize=(WIDTH, HEIGHT))
stream.seek(
0) # "Rewind" the stream to the beginning so we can read its content
image = Image.open(stream)
image = image.convert('L') # convert image to black and white
image = PIL.ImageOps.invert(image)
image = image.convert('1') # convert image to black and white
GPIO.output(22, 1)
# GPIO setup
GPIO.setmode(GPIO.BOARD)
GPIO.setup(SHOT_PIN, GPIO.IN, pull_up_down=GPIO.PUD_UP)
GPIO.setup(PRINT_PIN, GPIO.IN, pull_up_down=GPIO.PUD_UP)
GPIO.setup(NEXT_PIN, GPIO.IN, pull_up_down=GPIO.PUD_UP)
GPIO.setup(PREV_PIN, GPIO.IN, pull_up_down=GPIO.PUD_UP)
GPIO.setup(HALT_PIN, GPIO.IN, pull_up_down=GPIO.PUD_UP)
# add edge detection on a channel
GPIO.add_event_detect(SHOT_PIN, GPIO.FALLING, bouncetime=250)
GPIO.add_event_detect(PRINT_PIN, GPIO.FALLING, bouncetime=250)
GPIO.add_event_detect(NEXT_PIN, GPIO.FALLING, bouncetime=250)
GPIO.add_event_detect(PREV_PIN, GPIO.FALLING, bouncetime=250)
# Create Sharp mempry LCD
lcd = SMemLCD('/dev/spidev0.0')
# Create Printer
printer = Adafruit_Thermal("/dev/ttyAMA0", 115200, timeout=0, rtscts=True)
# Create camera and in-memory stream
stream = BytesIO()
camera = PiCamera()
camera.rotation = 180
camera.resolution = (F_WIDTH, F_HEIGHT)
camera.framerate = 8
camera.contrast = 50
camera.start_preview()
sleep(1)
#Printer resolution camera Thread to minimize shot delay
liveViewThread = CameraThread()
parser = argparse.ArgumentParser(description='smemlcd library example')
parser.add_argument('-f', dest='font', nargs=1, help='TrueType font filename')
parser.add_argument('device', help='SPI device filename, i.e. /dev/spi')
args = parser.parse_args()
WIDTH, HEIGHT = 400, 240
def center(draw, y, txt, font):
w, h = draw.textsize(txt, font=font)
x = int((WIDTH - w) / 2)
draw.text((x, y), txt, fill='white', font=font)
lcd = SMemLCD(args.device)
lcd.width = 50
lcd.reversed = False
img = PIL.Image.new('1', (WIDTH, HEIGHT))
draw = PIL.ImageDraw.Draw(img)
if args.font:
font = PIL.ImageFont.truetype(args.font[0], size=30)
else:
font = PIL.ImageFont.load_default()
for i in range(60, -1, -1):
start = time.monotonic()
img.paste(0)
center(draw, 60, 'smemlcd library demo', font)
center(cr, 60, 'smemlcd library demo')
s = 'closing in {:02d}...'.format(i)
center(cr, 100, s)
cr.rectangle(5, 120, 390, 20)
cr.stroke()
cr.rectangle(6, 121, 388 * (60 - i) / 60, 18)
cr.fill()
sw = time.monotonic()
await lcd.write_async(img_data)
end = time.monotonic()
print('time: process={:.4f}, write={:.4f}'.format(
end - start, end - sw))
await asyncio.sleep(0.2)
loop = asyncio.get_event_loop()
lcd = SMemLCD(args.device, loop=loop)
try:
loop.run_until_complete(run(lcd))
finally:
loop.close()
lcd.close()
# vim: sw=4:et:ai
from smemlcd import SMemLCD
import PIL.Image, PIL.ImageDraw, PIL.ImageFont
parser = argparse.ArgumentParser(description='smemlcd library example')
parser.add_argument('-f', dest='font', nargs=1, help='TrueType font filename')
parser.add_argument('device', help='SPI device filename, i.e. /dev/spi')
args = parser.parse_args()
WIDTH, HEIGHT = 400, 240
def center(draw, y, txt, font):
w, h = draw.textsize(txt, font=font)
x = int((WIDTH - w) / 2)
draw.text((x, y), txt, fill='white', font=font)
lcd = SMemLCD(args.device)
lcd.width = 50
lcd.reversed = False
img = PIL.Image.new('1', (WIDTH, HEIGHT))
draw = PIL.ImageDraw.Draw(img)
if args.font:
font = PIL.ImageFont.truetype(args.font[0], size=30)
else:
font = PIL.ImageFont.load_default()
for i in range(60, -1, -1):
start = time.monotonic()
img.paste(0)
center(draw, 60, 'smemlcd library demo', font)
s = 'closing in {:02d}...'.format(i)
center(draw, 100, s, font)
draw.rectangle((5, 120, 395, 140), outline='white')
draw.rectangle((6, 121, 6 + 393 * (60 - i) / 60, 139),
outline='white',
fill='white')
sw = time.monotonic()
await lcd.write_async(img.tobytes())
end = time.monotonic()
print('time: process={:.4f}, write={:.4f}'.format(
end - start, end - sw))
await asyncio.sleep(0.2)
loop = asyncio.get_event_loop()
lcd = SMemLCD(args.device, loop=loop)
lcd.width = 50
lcd.reversed = False
try:
loop.run_until_complete(run(lcd))
finally:
loop.close()
lcd.close()
# vim: sw=4:et:ai
cr.set_operator(cairo.OPERATOR_OVER)
center(cr, 60, 'smemlcd library demo')
s = 'closing in {:02d}...'.format(i)
center(cr, 100, s)
cr.rectangle(5, 120, 390, 20)
cr.stroke()
cr.rectangle(6, 121, 388 * (60 - i) / 60, 18)
cr.fill()
sw = time.monotonic()
await lcd.write_async(img_data)
end = time.monotonic()
print('time: process={:.4f}, write={:.4f}'.format(end - start, end - sw))
await asyncio.sleep(0.2)
loop = asyncio.get_event_loop()
lcd = SMemLCD(args.device, loop=loop)
try:
loop.run_until_complete(run(lcd))
finally:
loop.close()
lcd.close()
# vim: sw=4:et:ai
