Add lib/waveshare_epd/epdconfig.py
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lib/waveshare_epd/epdconfig.py
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244
lib/waveshare_epd/epdconfig.py
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import os
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import logging
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import sys
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import time
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import subprocess
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import RPi.GPIO as GPIO
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from ctypes import *
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logger = logging.getLogger(__name__)
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class RaspberryPi:
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# Pin definition
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RST_PIN = 17
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DC_PIN = 25
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CS_PIN = 8
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BUSY_PIN = 24
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PWR_PIN = 18
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MOSI_PIN = 10
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SCLK_PIN = 11
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def __init__(self):
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import spidev
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self.SPI = spidev.SpiDev()
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GPIO.setmode(GPIO.BCM)
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GPIO.setwarnings(False)
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GPIO.setup(self.RST_PIN, GPIO.OUT)
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GPIO.setup(self.DC_PIN, GPIO.OUT)
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GPIO.setup(self.CS_PIN, GPIO.OUT) # Uncomment this if you are using CS_PIN
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GPIO.setup(self.PWR_PIN, GPIO.OUT)
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GPIO.setup(self.BUSY_PIN, GPIO.IN)
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def digital_write(self, pin, value):
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GPIO.output(pin, value)
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def digital_read(self, pin):
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return GPIO.input(pin)
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def delay_ms(self, delaytime):
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time.sleep(delaytime / 1000.0)
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def spi_writebyte(self, data):
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self.SPI.writebytes(data)
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def spi_writebyte2(self, data):
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self.SPI.writebytes2(data)
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def module_init(self, cleanup=False):
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self.digital_write(self.PWR_PIN, 1)
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if cleanup:
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find_dirs = [
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os.path.dirname(os.path.realpath(__file__)),
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'/usr/local/lib',
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'/usr/lib',
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]
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self.DEV_SPI = None
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for find_dir in find_dirs:
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val = int(os.popen('getconf LONG_BIT').read())
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logging.debug("System is %d bit" % val)
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if val == 64:
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so_filename = os.path.join(find_dir, 'DEV_Config_64.so')
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else:
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so_filename = os.path.join(find_dir, 'DEV_Config_32.so')
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if os.path.exists(so_filename):
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self.DEV_SPI = CDLL(so_filename)
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break
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if self.DEV_SPI is None:
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raise RuntimeError('Cannot find DEV_Config.so')
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self.DEV_SPI.DEV_Module_Init()
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else:
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# SPI device, bus = 0, device = 0
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self.SPI.open(0, 0)
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self.SPI.max_speed_hz = 4000000
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self.SPI.mode = 0b00
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return 0
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def module_exit(self, cleanup=False):
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logger.debug("spi end")
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self.SPI.close()
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self.digital_write(self.RST_PIN, 0)
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self.digital_write(self.DC_PIN, 0)
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self.digital_write(self.PWR_PIN, 0)
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logger.debug("close 5V, Module enters 0 power consumption ...")
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if cleanup:
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GPIO.cleanup([self.RST_PIN, self.DC_PIN, self.PWR_PIN, self.BUSY_PIN])
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class JetsonNano:
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# Pin definition
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RST_PIN = 17
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DC_PIN = 25
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CS_PIN = 8
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BUSY_PIN = 24
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PWR_PIN = 18
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def __init__(self):
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import ctypes
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find_dirs = [
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os.path.dirname(os.path.realpath(__file__)),
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'/usr/local/lib',
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'/usr/lib',
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]
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self.SPI = None
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for find_dir in find_dirs:
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so_filename = os.path.join(find_dir, 'sysfs_software_spi.so')
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if os.path.exists(so_filename):
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self.SPI = ctypes.cdll.LoadLibrary(so_filename)
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break
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if self.SPI is None:
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raise RuntimeError('Cannot find sysfs_software_spi.so')
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import Jetson.GPIO
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self.GPIO = Jetson.GPIO
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def digital_write(self, pin, value):
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self.GPIO.output(pin, value)
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def digital_read(self, pin):
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return self.GPIO.input(self.BUSY_PIN)
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def delay_ms(self, delaytime):
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time.sleep(delaytime / 1000.0)
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def spi_writebyte(self, data):
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self.SPI.SYSFS_software_spi_transfer(data[0])
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def spi_writebyte2(self, data):
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for i in range(len(data)):
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self.SPI.SYSFS_software_spi_transfer(data[i])
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def module_init(self):
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self.GPIO.setmode(self.GPIO.BCM)
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self.GPIO.setwarnings(False)
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self.GPIO.setup(self.RST_PIN, self.GPIO.OUT)
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self.GPIO.setup(self.DC_PIN, self.GPIO.OUT)
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self.GPIO.setup(self.CS_PIN, self.GPIO.OUT)
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self.GPIO.setup(self.PWR_PIN, self.GPIO.OUT)
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self.GPIO.setup(self.BUSY_PIN, self.GPIO.IN)
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self.GPIO.output(self.PWR_PIN, 1)
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self.SPI.SYSFS_software_spi_begin()
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return 0
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def module_exit(self):
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logger.debug("spi end")
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self.SPI.SYSFS_software_spi_end()
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logger.debug("close 5V, Module enters 0 power consumption ...")
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self.GPIO.output(self.RST_PIN, 0)
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self.GPIO.output(self.DC_PIN, 0)
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self.GPIO.output(self.PWR_PIN, 0)
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self.GPIO.cleanup([self.RST_PIN, self.DC_PIN, self.CS_PIN, self.BUSY_PIN, self.PWR_PIN])
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class SunriseX3:
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# Pin definition
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RST_PIN = 17
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DC_PIN = 25
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CS_PIN = 8
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BUSY_PIN = 24
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PWR_PIN = 18
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Flag = 0
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def __init__(self):
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import spidev
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import Hobot.GPIO
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self.GPIO = Hobot.GPIO
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self.SPI = spidev.SpiDev()
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def digital_write(self, pin, value):
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self.GPIO.output(pin, value)
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def digital_read(self, pin):
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return self.GPIO.input(pin)
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def delay_ms(self, delaytime):
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time.sleep(delaytime / 1000.0)
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def spi_writebyte(self, data):
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self.SPI.writebytes(data)
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def spi_writebyte2(self, data):
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self.SPI.xfer3(data)
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def module_init(self):
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if self.Flag == 0:
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self.Flag = 1
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self.GPIO.setmode(self.GPIO.BCM)
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self.GPIO.setwarnings(False)
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self.GPIO.setup(self.RST_PIN, self.GPIO.OUT)
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self.GPIO.setup(self.DC_PIN, self.GPIO.OUT)
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self.GPIO.setup(self.CS_PIN, self.GPIO.OUT)
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self.GPIO.setup(self.PWR_PIN, self.GPIO.OUT)
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self.GPIO.setup(self.BUSY_PIN, self.GPIO.IN)
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self.GPIO.output(self.PWR_PIN, 1)
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# SPI device, bus = 0, device = 0
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self.SPI.open(2, 0)
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self.SPI.max_speed_hz = 4000000
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self.SPI.mode = 0b00
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return 0
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else:
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return 0
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def module_exit(self):
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logger.debug("spi end")
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self.SPI.close()
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logger.debug("close 5V, Module enters 0 power consumption ...")
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self.Flag = 0
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self.GPIO.output(self.RST_PIN, 0)
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self.GPIO.output(self.DC_PIN, 0)
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self.GPIO.output(self.PWR_PIN, 0)
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self.GPIO.cleanup([self.RST_PIN, self.DC_PIN, self.CS_PIN, self.BUSY_PIN], self.PWR_PIN)
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if sys.version_info[0] == 2:
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process = subprocess.Popen("cat /proc/cpuinfo | grep Raspberry", shell=True, stdout=subprocess.PIPE)
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else:
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process = subprocess.Popen("cat /proc/cpuinfo | grep Raspberry", shell=True, stdout=subprocess.PIPE, text=True)
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output, _ = process.communicate()
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if sys.version_info[0] == 2:
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output = output.decode(sys.stdout.encoding)
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if "Raspberry" in output:
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implementation = RaspberryPi()
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elif os.path.exists('/sys/bus/platform/drivers/gpio-x3'):
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implementation = SunriseX3()
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else:
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implementation = JetsonNano()
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for func in [x for x in dir(implementation) if not x.startswith('_')]:
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setattr(sys.modules[__name__], func, getattr(implementation, func))
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### END OF FILE ###
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