
Looks similar to Renkforce KL4931.
https://www.conrad.com/ce/en/product/12 ... o-24-hours.
Looks similar to Techno Line TX 6000 sensor which is used with weather stations WS6600, WS6620, WS6650, WS6740 and WS6850
https://www.technoline.eu/. WS6740 is identical to Biltema Art. 84-0865 weather station.
I cannot find any working Biltema sensor besides the old 84-0871.
RFLink firmware R48.
Biltema sensor Art. 84-0871, fits weather station Art. 84-0865
Older batch works OK! Recognized as Prologue. Clas Ohlson Prologue 36-4744 is not available anymore.
Newer batch doesn't work! RFLink does not recognize. If I press tx button many times sometimes RFLink shows Alecto V4 but temperature and humidity are wrong.
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20;40;DEBUG;Pulses=76;Pulses(uSec)=480,3780,390,1860,390,1860,390,3780,390,3780,390,1860,420,3780,420,1860,390,1860,420,3780,420,3780,390,3780,390,1860,420,3780,390,1860,390,3780,420,1860,390,1860,390,1860,420,1860,390,3780,420,3780,420,3780,390,3780,390,1860,390,3780,390,3780,390,1860,420,1860,390,1860,390,3780,390,1860,390,1860,390,3780,420,3780,390,3780,390,3810,420,6990;
20;41;DEBUG;Pulses=44;Pulses(uSec)=450,1740,360,1770,390,1800,390,1860,390,3780,420,3780,420,3780,390,3780,390,1860,420,3780,390,3780,390,1860,420,1860,390,1860,390,3780,390,1860,390,1860,420,3780,390,3780,390,3780,390,3810,420,6990;
20;42;DEBUG;Pulses=58;Pulses(uSec)=450,3570,390,3600,390,3780,390,1860,420,3780,390,1860,420,3780,420,1860,390,1860,420,1860,420,1860,390,3780,420,3780,420,3780,390,3780,390,1860,420,3780,390,3780,390,1860,420,1860,390,1860,420,3780,420,1860,390,1860,420,3780,420,3780,390,3780,390,3810,420,6990;
20;43;DEBUG;Pulses=52;Pulses(uSec)=450,1740,390,3630,390,1860,420,3780,420,1860,390,1860,420,1860,420,1860,390,3780,420,3780,420,3780,390,3780,390,1860,420,3780,390,3780,390,1860,420,1860,390,1860,390,3780,420,1860,390,1860,390,3780,420,3780,390,3780,390,3810,420,6990;
20;44;DEBUG;Pulses=54;Pulses(uSec)=450,3600,390,1800,420,3780,390,1860,420,3780,390,1860,390,1860,390,1860,420,1860,390,3780,420,3780,420,3780,390,3780,390,1860,420,3780,390,3780,390,1860,420,1860,390,1860,420,3780,420,1860,390,1860,420,3780,420,3780,390,3780,390,3810,420,6990;
20;45;DEBUG;Pulses=54;Pulses(uSec)=450,3600,390,1740,390,3780,390,1860,420,3780,420,1860,390,1860,420,1860,420,1860,390,3780,420,3780,420,3780,390,3780,420,1860,420,3780,390,3780,390,1860,420,1860,390,1860,420,3780,420,1860,390,1860,420,3780,390,3780,390,3780,390,3810,420,6990;
20;46;DEBUG;Pulses=52;Pulses(uSec)=450,3600,390,1740,390,3780,390,1860,420,3780,420,1860,390,1860,420,1860,420,1860,390,3780,420,3780,420,3780,390,3780,390,1860,390,3780,390,3780,390,1860,420,1860,390,1860,420,3780,390,1860,390,1860,390,3780,420,3780,390,3780,390,6990;
Biltema sensor Art. 84-0820, fits weather station Art. 84-0866
Doesn't work! RFLink does not recognize.
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20;A1;DEBUG;Pulses=76;Pulses(uSec)=390,3780,390,1860,390,1860,390,3780,390,3780,390,3780,390,1860,390,1860,390,3780,390,3780,390,1860,390,1860,390,1860,390,3780,390,1860,390,3780,390,1860,390,1860,390,1860,390,3780,390,1860,390,1860,390,1860,390,1860,390,3780,390,1860,390,1860,390,3780,390,1860,390,1860,390,3780,390,1860,390,3780,390,3780,390,3780,390,1860,390,3810,420,6990;
20;A2;DEBUG;Pulses=44;Pulses(uSec)=270,1770,360,1770,360,1770,360,3750,390,1860,390,1860,390,1860,390,1860,390,3780,390,1860,390,1860,390,3780,390,1860,390,1860,390,3780,390,1860,390,3780,390,3780,390,3780,390,1860,390,3810,420,6990;
20;A3;DEBUG;Pulses=58;Pulses(uSec)=450,3600,390,1770,390,1860,390,1860,390,3780,390,1860,390,3780,390,1860,390,1860,390,1860,390,3780,390,1860,390,1860,390,1860,390,1860,390,3780,390,1860,390,1860,390,3780,390,1860,390,1860,390,3780,390,1860,390,3780,390,3780,390,3780,390,1860,390,3840,420,6990;
20;A4;DEBUG;Pulses=52;Pulses(uSec)=450,1770,360,3600,360,1830,390,3780,390,1860,390,1860,390,1860,390,3780,390,1860,390,1860,390,1860,390,1860,390,3780,390,1860,390,1860,390,3780,390,1860,390,1860,390,3780,390,1860,390,3780,390,3780,390,3780,390,1860,390,3810,420,6990;
20;A5;DEBUG;Pulses=56;Pulses(uSec)=450,1770,360,1770,360,1770,360,3750,390,1860,390,3780,390,1860,390,1860,390,1860,390,3780,390,1860,390,1860,390,1860,390,1860,390,3780,390,1860,390,1860,390,3780,390,1860,390,1860,390,3780,390,1860,390,3780,390,3780,390,3780,390,1860,390,3810,420,6990;
20;A6;DEBUG;Pulses=54;Pulses(uSec)=150,1770,390,1770,360,3600,420,1860,390,3780,390,1860,390,1860,390,1860,390,3780,390,1860,390,1860,390,1860,390,1860,390,3780,390,1860,390,1860,390,3780,390,1860,390,1860,390,3780,390,1860,390,3780,390,3780,390,3780,390,1860,390,3840,420,6990;
20;A7;DEBUG;Pulses=52;Pulses(uSec)=450,1770,390,1770,360,3690,390,1860,390,3780,390,1860,390,1860,390,1860,390,3780,390,1860,390,1860,390,1860,390,1860,390,3780,390,1860,390,1860,390,3780,390,1860,390,1860,390,3780,390,1860,390,3780,390,3780,390,3780,390,1860,390,6990;
Biltema sensor Art. 84-0870, fits weather station Art. 84-0863 and 84-0864
Doesn't work! RFLink does not recognize.
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20;71;DEBUG;Pulses=76;Pulses(uSec)=450,3780,390,1860,420,1860,390,3780,390,3780,420,3780,420,3780,390,3780,420,1860,420,3780,390,3780,390,3780,420,1860,390,3780,390,3780,420,1860,390,1860,390,1860,390,1860,390,1860,420,3780,420,3780,390,3780,390,3780,390,3780,420,1860,390,3780,390,3780,420,1860,390,1860,390,3780,420,1860,390,3780,420,1860,420,3780,390,3780,420,3810,420,6990;
20;72;DEBUG;Pulses=46;Pulses(uSec)=450,1770,390,1770,390,1860,390,1860,420,1860,390,3780,420,3780,420,3780,390,3780,390,3780,420,1860,420,3780,390,3780,420,1860,420,1860,390,3780,420,1860,420,3780,390,1860,420,3780,420,3780,390,3810,420,6990;
20;73;DEBUG;Pulses=60;Pulses(uSec)=450,1740,390,3600,390,3720,420,3780,420,1860,390,3780,420,3780,420,1860,390,1860,420,1860,390,1860,390,1860,390,3780,420,3780,390,3780,420,3780,420,3780,390,1860,420,3780,420,3780,390,1860,420,1860,420,3780,390,1860,420,3780,420,1860,390,3780,420,3780,420,3810,420,6990;
20;74;DEBUG;Pulses=54;Pulses(uSec)=450,3600,390,1770,360,3750,390,3780,420,1860,420,1860,390,1860,420,1860,390,1860,420,3780,420,3780,390,3780,390,3780,420,3780,420,1860,420,3780,420,3780,420,1860,390,1860,420,3780,420,1860,390,3780,390,1860,420,3780,390,3780,390,3810,420,6990;
20;75;DEBUG;Pulses=56;Pulses(uSec)=450,3570,390,3630,390,1860,420,3780,420,3780,390,1860,420,1860,420,1860,390,1860,420,1860,390,3780,390,3780,420,3780,420,3780,390,3780,390,1860,420,3780,390,3780,390,1860,420,1860,420,3780,390,1860,420,3780,390,1860,420,3780,420,3780,420,3810,420,6990;
20;76;DEBUG;Pulses=54;Pulses(uSec)=450,3570,390,1830,390,3780,420,3780,420,1860,420,1860,420,1860,420,1860,390,1860,420,3780,390,3780,390,3780,420,3780,420,3780,390,1860,420,3780,420,3780,390,1860,390,1860,420,3780,420,1860,420,3780,420,1860,390,3780,390,3780,420,3810,420,6990;
20;77;DEBUG;Pulses=54;Pulses(uSec)=450,3600,390,3630,420,1860,420,3780,390,3780,390,1860,420,1860,390,1860,420,1860,390,1860,390,3780,420,3780,420,3780,390,3780,420,3780,420,1860,390,3780,390,3780,420,1860,390,1860,390,3780,390,1860,390,3780,390,1860,420,3780,390,3780,390,6990;
Debug logs are catured when pressing tx button. Temperature should be around 23 C and humidity 30 %.
More info
I tried to decode the pulses with help of this
https://github.com/merbanan/rtl_433/blo ... prologue.c . There's nothing different in the first lines between different sensors. Looks like some ID values are not detected.
/* Prologue sensor protocol
* also FreeTec NC-7104 sensor for FreeTec Weatherstation NC-7102.
*
* the sensor sends 36 bits 7 times, before the first packet there is a sync pulse
* the packets are ppm modulated (distance coding) with a pulse of ~500 us
* followed by a short gap of ~2000 us for a 0 bit or a long ~4000 us gap for a
* 1 bit, the sync gap is ~9000 us.
*
* the data is grouped in 9 nibbles
* [model] [id0] [id1] [flags] [temp0] [temp1] [temp2] [humi0] [humi1]
*
* model is 1001 (9) or 0110 (5)
* id is a random id that is generated when the sensor starts, could include battery status
* the same batteries often generate the same id
* flags(3) is 0 the battery status, 1 ok, 0 low, first reading always say low
* flags(2) is 1 when the sensor sends a reading when pressing the button on the sensor
* flags(1,0)+1 forms the channel number that can be set by the sensor (1-3)
* temp is 12 bit signed scaled by 10
* humi0 is always 1100 (0x0C) if no humidity sensor is available
* humi1 is always 1100 (0x0C) if no humidity sensor is available
*
* The sensor can be bought at Clas Ohlson
*/
More info 2
Looks like the 5th bit has to be 0. This means that the sencod hex number of the ID from the left has to be lower than 8. For example ID 9521 is OK because that number 5 is lower than 8.
I have been trying to get that 5th bit to 0 by pressing reset button but it takes some time.
More info 3
The lowest humidity value for those Biltema sensors are 20 %. When humidity goes below this sensors are sending 0 % and weather stations shows humidity level 20 %. RFLink ignores all transmissions with zero humidity and you don't get any values to Domoticz.
More info 4
Update interval is 50 seconds.