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misc fixes for Ecowitt WS90 #2585

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merged 6 commits into from
Aug 3, 2023
Merged

misc fixes for Ecowitt WS90 #2585

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ce965d6
WS90: docs: fix an error in field description
jktjkt Aug 2, 2023
72e3f28
WS90: include correct bytes in the "extra-data" field
jktjkt Aug 2, 2023
b6bf3e9
WS90: put all unknown fields into a single extra-data blob
jktjkt Aug 2, 2023
adb1a57
WS90: don't report supercapacitor voltage through "Extra Data"
jktjkt Aug 2, 2023
07916e7
WS90: mask out the known rain sensor data in "Extra Data"
jktjkt Aug 2, 2023
a5a207d
WS90: docs: bytes 14 and 15 are probably fixed
jktjkt Aug 3, 2023
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10 changes: 4 additions & 6 deletions src/devices/fineoffset_ws90.c
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Original file line number Diff line number Diff line change
Expand Up @@ -38,7 +38,7 @@ Packet layout:

- Y = fixed sensor type 0x90
- I = device ID, might be less than 24 bit?
- L = light value, unit of 10 Klux
- L = light value, unit of 10 lux
- B = battery voltage, unit of 20 mV, we assume a range of 3.0V to 1.4V
- F = flags and MSBs, 0x03: temp MSB, 0x10: wind MSB, 0x20: bearing MSB, 0x40: gust MSB
0x80 or 0x08: maybe battery good? seems to be always 0x88
Expand All @@ -48,7 +48,7 @@ Packet layout:
- D = wind bearing, lowest 8 bits of wind bearing, range 0-359 deg, 0x1ff if invalid
- G = wind gust, lowest 8 bits of wind gust, m/s, scale 10
- V = uv index, scale 10
- U = unknown
- U = unknown (bytes 14 and 15 appear to be fixed at 3f ff)
- R = rain total (R3 << 8 | R4) * 0.1 mm
- S = super cap voltage, unit of 0.1V, lower 6 bits, mask 0x3f
- Z = Firmware version. 0x82 = 130 = 1.3.0
Expand Down Expand Up @@ -105,16 +105,15 @@ static int fineoffset_ws90_decode(r_device *decoder, bitbuffer_t *bitbuffer)
int wind_dir = ((b[7] & 0x20) << 3) | (b[11]);
int wind_max = ((b[7] & 0x40) << 2) | (b[12]);
int uv_index = (b[13]);
int unknown = (b[14] << 8) | (b[15]);
int rain_raw = (b[19] << 8 ) | (b[20]);
int supercap_V = (b[21] & 0x3f);
int firmware = b[29];
char extra[30];
char extra[31];

if (battery_lvl > 100) // More then 100%?
battery_lvl = 100;

sprintf(extra, "%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x", b[16], b[18], b[19], b[20], b[21], b[22], b[23], b[24], b[25], b[26], b[27], b[28], b[28] );
sprintf(extra, "%02x%02x%02x%02x%02x------%02x%02x%02x%02x%02x%02x%02x", b[14], b[15], b[16], b[17], b[18], /* b[19,20] is the rain sensor, b[21] is supercap_V */ b[22], b[23], b[24], b[25], b[26], b[27], b[28]);

/* clang-format off */
data_t *data = data_make(
Expand All @@ -130,7 +129,6 @@ static int fineoffset_ws90_decode(r_device *decoder, bitbuffer_t *bitbuffer)
"uvi", "UVI", DATA_COND, uv_index != 0xff, DATA_FORMAT, "%.1f", DATA_DOUBLE, uv_index * 0.1f,
"light_lux", "Light", DATA_COND, light_raw != 0xffff, DATA_FORMAT, "%.1f lux", DATA_DOUBLE, (double)light_lux,
"flags", "Flags", DATA_FORMAT, "%02x", DATA_INT, flags,
"unknown", "Unknown", DATA_COND, unknown != 0x3fff, DATA_INT, unknown,
"rain_mm", "Total Rain", DATA_FORMAT, "%.1f mm", DATA_DOUBLE, rain_raw * 0.1f,
"supercap_V", "Supercap Voltage", DATA_COND, supercap_V != 0xff, DATA_FORMAT, "%.1f V", DATA_DOUBLE, supercap_V * 0.1f,
"firmware", "Firmware Version", DATA_INT, firmware,
Expand Down
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