58 lines
1.7 KiB
Python
58 lines
1.7 KiB
Python
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#!/usr/bin/env python3
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import struct
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MSG_TYPES = {0x01: 'PING',
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0x02: 'PONG',
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0x10: 'Weather Report',
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0x11: 'Weather Report Request'}
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PAYLOAD_TYPES = {0x20: 'Outside Temperature',
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0x21: 'Outside Humidity',
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0x22: 'Outside Pressure',
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0x50: 'Inside Temperature',
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0x51: 'Inside Humidity',
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0x52: 'Inside Pressure',
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0x80: 'Battery Voltage',
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0x81: 'Battery Current',
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0x90: 'Solar Cell Voltage',
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0x91: 'Solar Cell Current'}
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def decode_msg(msg):
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binary = bytes.fromhex(msg)
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if len(binary) < 5:
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return {}
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decoded = {
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'to': binary[0],
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'from': binary[1],
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'id': binary[2],
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'flags': binary[3],
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'type': binary[4],
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'values': []
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}
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for i in range(5, len(binary), 5):
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decoded['values'].append({'id': binary[i],
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'val': struct.unpack('f', binary[i+1:][:4])[0]})
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return decoded
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def pretty_print_header(decoded):
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type_msg = MSG_TYPES.get(decoded['type'], "")
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return '0x{from:02x} -> 0x{to:02x} (ID={id}, FLAGS=0x{flags:02x}) TYPE(0x{type:02x})="{type_msg}" '.format(**decoded, type_msg=type_msg)
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def pretty_print_payload(decoded):
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values = []
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for val in decoded['values']:
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values.append(' (0x{id:02x}) {type:20s} = {val:15.4f}'.format(type=PAYLOAD_TYPES.get(val['id'], ''), **val))
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return '\n'.join(values)
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if __name__ == "__main__":
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decoded = decode_msg("ff100f0010203333c74122806ed247804c3751409000000000")
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print("####", pretty_print_header(decoded))
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print(pretty_print_payload(decoded))
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