rtl433
UNKNOWN
RTL-433 utility
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Ecowitt Wireless Outdoor Thermometer WH53/WH0280/WH0281A. More...
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static int | ecowitt_decode (r_device *decoder, bitbuffer_t *bitbuffer) |
Ecowitt Wireless Outdoor Thermometer WH53/WH0280/WH0281A. More... | |
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static char * | output_fields [] |
r_device | ecowitt |
Ecowitt Wireless Outdoor Thermometer WH53/WH0280/WH0281A.
Copyright 2019 Google LLC.
This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.
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Ecowitt Wireless Outdoor Thermometer WH53/WH0280/WH0281A.
55-bit one-row data packet format (inclusive ranges, 0-indexed):
| 0-6 | 7-bit header, ignored for checksum, always 1111111 | 7-14 | Always 01010011 | 15-22 | Sensor ID, randomly reinitialized on boot | 23-24 | Always 00 | 25-26 | 2-bit sensor channel, selectable on back of sensor {00=1, 01=2, 10=3} | 27-28 | Always 00 | 29-38 | 10-bit temperature in tenths of degrees C, starting from -40C. e.g. 0=-40C | 39-46 | Trailer, always 1111 1111 | 47-54 | CRC-8 checksum poly 0x31 init 0x00 skipping first 7 bits
References bitbuffer::bb, bitbuffer_extract_bytes(), bitbuffer::bits_per_row, crc8(), DATA_DOUBLE, DATA_FORMAT, DATA_INT, data_make(), DATA_STRING, DECODE_ABORT_EARLY, DECODE_ABORT_LENGTH, DECODE_FAIL_MIC, DECODE_FAIL_SANITY, decoder_output_data(), and bitbuffer::num_rows.
r_device ecowitt |
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