42 lines
1.0 KiB
Python
42 lines
1.0 KiB
Python
"""Utility functions for the driver."""
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import socket
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import struct
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def get_public_ip_address():
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"""Find the public IP Address of the host device."""
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s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
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s.connect(("8.8.8.8", 80))
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ip = s.getsockname()[0]
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s.close()
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return ip
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def int_to_float16(int_to_convert):
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"""Convert integer into float16 representation."""
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bin_rep = ('0' * 16 + '{0:b}'.format(int_to_convert))[-16:]
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sign = -1 ** int(bin_rep[0])
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exponent = int(bin_rep[1:6], 2)
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fraction = int(bin_rep[7:17], 2)
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return sign * 2 ** (exponent - 15) * float("1.{}".format(fraction))
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def ints_to_float(intlist):
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"""Convert 2 registers into a floating point number."""
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mypack = struct.pack('>HH', intlist[0], intlist[1])
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f = struct.unpack('>f', mypack)
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print("{} >> {}".format(intlist, f[0]))
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return f[0]
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def degf_to_degc(temp_f):
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"""Convert deg F to deg C."""
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return (temp_f - 32.0) * (5.0/9.0)
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def degc_to_degf(temp_c):
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"""Convert deg C to deg F."""
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return temp_c * 1.8 + 32.0
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