38 lines
902 B
Python
Executable File
38 lines
902 B
Python
Executable File
#!/usr/bin/python
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# coding=utf-8
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# Disable PCA9547 I2C multiplexer
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# I2C Address: 0xYY, where YY can be 70 through 77
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# sudo ./mux_channel.py ADDRESS CHANNEL
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# Example: sudo ./mux_disable.py 70
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import time
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import argparse
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import RPi.GPIO as GPIO
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import smbus
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def I2C_setup(multiplexer_i2c_address):
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I2C_address = 0x70 + multiplexer_i2c_address % 10
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if GPIO.RPI_REVISION in [2, 3]:
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I2C_bus_number = 1
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else:
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I2C_bus_number = 0
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bus = smbus.SMBus(I2C_bus_number)
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i2c_channel_setup=0x00
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#i2c_channel_setup=i2c_channel_setup + 0x08
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bus.write_byte(I2C_address, i2c_channel_setup)
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#time.sleep(0.1)
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def menu():
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parser = argparse.ArgumentParser(description='Select Address of Disable PCA9547 Multiplexer')
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parser.add_argument('address', type=int)
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args = parser.parse_args()
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I2C_setup(args.address)
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if __name__ == "__main__":
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menu()
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