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Add support for Emax EM3551H with Gust without UV/Lux to Emax-W6 #2376

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Merged
merged 6 commits into from
Feb 15, 2023
Merged

Add support for Emax EM3551H with Gust without UV/Lux to Emax-W6 #2376

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6d32e9d
add new model with Gust without UV/Lux
ProfBoc75 Feb 12, 2023
bb3788f
Revert "add new model with Gust without UV/Lux"
ProfBoc75 Feb 12, 2023
3b72f29
add new model with Gust without UV/Lux
ProfBoc75 Feb 12, 2023
f1dd09c
add new model with Gust without UV/Lux
ProfBoc75 Feb 12, 2023
5e16c72
add new model with Gust without UV/Lux
ProfBoc75 Feb 12, 2023
b76c432
add new model with Gust without UV/Lux
ProfBoc75 Feb 13, 2023
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99 changes: 65 additions & 34 deletions src/devices/emax.c
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Original file line number Diff line number Diff line change
Expand Up @@ -16,7 +16,7 @@
/**
Fuzhou Emax Electronic W6 Professional Weather Station.
Rebrand and devices decoded :
- Emax W6 / WEC-W6 / 3390TX W6 / EM3390W6
- Emax W6 / WEC-W6 / 3390TX W6 / EM3390W6 / EM3551H
- Altronics x7063/4
- Optex 990040 / 990050 / 990051 / SM-040
- Infactory FWS-1200
Expand All @@ -26,7 +26,7 @@ Rebrand and devices decoded :
- Protmex PT3390A
- Jula Marquant 014331 weather station /014332 temp hum sensor

S.a. issue #2000 #2299 #2326 PR #2300
S.a. issue #2000 #2299 #2326 #2373 PR #2300 #2346 #2374

- Likely a rebranded device, sold by Altronics
- Data length is 32 bytes with a preamble of 10 bytes (33 bytes for Rain/Wind Station)
Expand Down Expand Up @@ -64,10 +64,14 @@ Decoded example:
aaa CH:1 ID:6e9 FLAGS:0101 TEMP:6b5 HUM:059 aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa CHKSUM:d4 000


Emax EM3390W6 Rain / Wind speed / Wind Direction / Temp / Hum / UV / Lux
Emax Rain / Wind speed / Wind Direction / Temp / Hum / UV / Lux

Weather Rain/Wind station : hummidity not at same byte position as temp/hum sensor.
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humidity

- With UV Lux without Wind Gust
AA 04 II IB 0T TT HH 0W WW 0D DD RR RR UU LL LL 04 05 06 07 08 09 10 11 12 13 14 15 16 17 xx SS yy
- Without UV / Lux , with Wind Gust
AA 04 II IB 0T TT HH 0W WW 0D DD RR RR ?0 01 01 GG 04 05 06 07 08 09 10 11 12 13 14 15 16 xx SS yy

Weather Rain/Wind station : hummidity not at same byte position.
AA 04 II IB 0T TT HH 0W WW 0D DD RR RR 0U LL LL 04 05 06 07 08 09 10 11 12 13 14 15 16 17 xx SS yy

default empty/null = 0x01 => value = 0

Expand All @@ -82,6 +86,8 @@ default empty/null = 0x01 => value = 0
- D: (9 bit) Wind Direction
- U: (5 bit) UV index
- L: (1 + 15 bit) Lux value, if first bit = 1 , then x 10 the rest.
- G: (8 bit) Wind Gust
- ?: unknown
- A: (4 bit) fixed values of 0xA
- 0: (4 bit) fixed values of 0x0
- xx: incremental value each tx
Expand Down Expand Up @@ -184,36 +190,60 @@ static int emax_decode(r_device *decoder, bitbuffer_t *bitbuffer)
int direction_deg = (((b[9] - 1) & 0x0f) << 8) | (b[10] - 1);
int rain_raw = ((b[11] - 1) << 8 ) | (b[12] -1);
float rain_mm = rain_raw * 0.2f;
int uv_index = (b[13] - 1) & 0x1f;
int lux_14 = (b[14] - 1) & 0xFF;
int lux_15 = (b[15] - 1) & 0xFF;
int lux_multi = ((lux_14 & 0x80) >> 7);
int light_lux = ((lux_14 & 0x7f) << 8) | (lux_15);
if (lux_multi == 1) {
light_lux = light_lux * 10;
}

/* clang-format off */
data_t *data = data_make(
"model", "", DATA_STRING, "Emax-W6",
"id", "", DATA_FORMAT, "%03x", DATA_INT, id,
"channel", "Channel", DATA_INT, channel,
"battery_ok", "Battery_OK", DATA_INT, !battery_low,
"temperature_F", "Temperature", DATA_FORMAT, "%.1f F", DATA_DOUBLE, temp_f,
"humidity", "Humidity", DATA_FORMAT, "%u %%", DATA_INT, humidity,
"wind_avg_km_h", "Wind avg speed", DATA_FORMAT, "%.1f km/h", DATA_DOUBLE, speed_kmh,
"wind_dir_deg", "Wind Direction", DATA_INT, direction_deg,
"rain_mm", "Total rainfall", DATA_FORMAT, "%.1f mm", DATA_DOUBLE, rain_mm,
"uv", "UV Index", DATA_FORMAT, "%u", DATA_INT, uv_index,
"light_lux", "Lux", DATA_FORMAT, "%u", DATA_INT, light_lux,
"pairing", "Pairing?", DATA_COND, pairing, DATA_INT, !!pairing,
"mic", "Integrity", DATA_STRING, "CHECKSUM",
NULL);
/* clang-format on */

decoder_output_data(decoder, data);
return 1;

if ( b[29] == 0x17) { // with UV/Lux, without Wind Gust
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remove space after (

int uv_index = (b[13] - 1) & 0x1f;
int lux_14 = (b[14] - 1) & 0xFF;
int lux_15 = (b[15] - 1) & 0xFF;
int lux_multi = ((lux_14 & 0x80) >> 7);
int light_lux = ((lux_14 & 0x7f) << 8) | (lux_15);
if (lux_multi == 1) {
light_lux = light_lux * 10;
}

/* clang-format off */
data_t *data = data_make(
"model", "", DATA_STRING, "Emax-W6",
"id", "", DATA_FORMAT, "%03x", DATA_INT, id,
"channel", "Channel", DATA_INT, channel,
"battery_ok", "Battery_OK", DATA_INT, !battery_low,
"temperature_F", "Temperature", DATA_FORMAT, "%.1f F", DATA_DOUBLE, temp_f,
"humidity", "Humidity", DATA_FORMAT, "%u %%", DATA_INT, humidity,
"wind_avg_km_h", "Wind avg speed", DATA_FORMAT, "%.1f km/h", DATA_DOUBLE, speed_kmh,
"wind_dir_deg", "Wind Direction", DATA_INT, direction_deg,
"rain_mm", "Total rainfall", DATA_FORMAT, "%.1f mm", DATA_DOUBLE, rain_mm,
"uv", "UV Index", DATA_FORMAT, "%u", DATA_INT, uv_index,
"light_lux", "Lux", DATA_FORMAT, "%u", DATA_INT, light_lux,
"pairing", "Pairing?", DATA_COND, pairing, DATA_INT, !!pairing,
"mic", "Integrity", DATA_STRING, "CHECKSUM",
NULL);
/* clang-format on */

decoder_output_data(decoder, data);
return 1;
}
if ( b[29] == 0x16) { //without UV/Lux with Wind Gust
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remove space after (

float gust_kmh = b[16] / 1.5f;
/* clang-format off */
data_t *data = data_make(
"model", "", DATA_STRING, "Emax-EM3551H",
"id", "", DATA_FORMAT, "%03x", DATA_INT, id,
"channel", "Channel", DATA_INT, channel,
"battery_ok", "Battery_OK", DATA_INT, !battery_low,
"temperature_F", "Temperature", DATA_FORMAT, "%.1f F", DATA_DOUBLE, temp_f,
"humidity", "Humidity", DATA_FORMAT, "%u %%", DATA_INT, humidity,
"wind_avg_km_h", "Wind avg speed", DATA_FORMAT, "%.1f km/h", DATA_DOUBLE, speed_kmh,
"wind_max_km_h", "Wind max speed", DATA_FORMAT, "%.1f km/h", DATA_DOUBLE, gust_kmh,
"wind_dir_deg", "Wind Direction", DATA_INT, direction_deg,
"rain_mm", "Total rainfall", DATA_FORMAT, "%.1f mm", DATA_DOUBLE, rain_mm,
"pairing", "Pairing?", DATA_COND, pairing, DATA_INT, !!pairing,
"mic", "Integrity", DATA_STRING, "CHECKSUM",
NULL);
/* clang-format on */

decoder_output_data(decoder, data);
return 1;
}
}
pos += EMAX_MESSAGE_BITLEN;
}
Expand All @@ -228,6 +258,7 @@ static char *output_fields[] = {
"temperature_F",
"humidity",
"wind_avg_km_h",
"wind_max_km_h",
"rain_mm",
"wind_dir_deg",
"uv",
Expand Down