31 lines
548 B
Python
31 lines
548 B
Python
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import smbus
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import sys
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# usage, pass the i2c bus as the first argument, e.g. python3 serial_number 0
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i2c_ch = int(sys.argv[1])
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# address on the I2C bus
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i2c_address = 0x58
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# Register address
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serial_num = 0x80
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# Read serial number register
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def read_serial():
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# Read the serial register, a 16 byte block
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val = bus.read_i2c_block_data(i2c_address, serial_num, 16)
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return val
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# Initialize I2C (SMBus)
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bus = smbus.SMBus(i2c_ch)
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try:
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# Print out the serial number
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print(bytes(read_serial()).hex())
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except:
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pass
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