kopia lustrzana https://github.com/projecthorus/radiosonde_auto_rx
35 wiersze
707 B
Plaintext
35 wiersze
707 B
Plaintext
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Modulation AFSK 2400 baud
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3000 Hz : bit 1
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4800 Hz : bit 0
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bits : little endian -> byte
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bytes: big endian -> int-value
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8N1: 0 bbbbbbbb 1
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Datenpaket besteht aus 8 byte:
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header 2 byte 00FF
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pck_id 1 byte N
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data 4 byte val (big endian)
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chksum 2 byte Fletcher16 (hier: byte2 1's-complement am Ende)
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Telemetrie pck_id N:
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0x14: date: 0x0003F815 = 260117 -> 2017-01-26
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0x15: time: 0x0001C41D = 124735 -> 11:57:41
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0x16: lat : 0x1BC1678B = 465659787 -> 46+5659787/6000000=46.943298°
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0x17: lon : 0x03D54F9F = 64311199 -> 6+4311199/6000000=6.7185332°
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0x18: alt : 0x0003252E = 206126 -> 206126/10 = 20612.6m
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GPS-lat/lon wie NMEA mit Faktor 1e5
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Checksum: Fletcher16
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PTU-Data: float32?
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