Quand on le branche sur le pc:
$ dmesg
[101575.106304] usb 2-1.5: USB disconnect, device number 3
[101575.106692] usb 2-1.5: dvb_usb_v2: rc.query() failed=-71
[101575.151830] r820t 10-001a: destroying instance
[101575.152432] dvb_usb_v2: 'Realtek RTL2832U reference design:2-1.5' successfully deinitialized and disconnected
[101577.934613] usb 2-1.5: new high-speed USB device number 4 using ehci-pci
[101578.055016] usb 2-1.5: New USB device found, idVendor=0bda, idProduct=2838, bcdDevice= 1.00
[101578.055021] usb 2-1.5: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[101578.055023] usb 2-1.5: Product: RTL2838UHIDIR
[101578.055024] usb 2-1.5: Manufacturer: Realtek
[101578.055025] usb 2-1.5: SerialNumber: 00000001
[101578.062272] usb 2-1.5: dvb_usb_v2: found a 'Realtek RTL2832U reference design' in warm state
[101578.121186] usb 2-1.5: dvb_usb_v2: will pass the complete MPEG2 transport stream to the software demuxer
[101578.121192] dvbdev: DVB: registering new adapter (Realtek RTL2832U reference design)
[101578.121195] usb 2-1.5: media controller created
[101578.121414] dvbdev: dvb_create_media_entity: media entity 'dvb-demux' registered.
[101578.123639] i2c i2c-9: Added multiplexed i2c bus 10
[101578.123642] rtl2832 9-0010: Realtek RTL2832 successfully attached
[101578.123650] usb 2-1.5: DVB: registering adapter 0 frontend 0 (Realtek RTL2832 (DVB-T))...
[101578.123655] dvbdev: dvb_create_media_entity: media entity 'Realtek RTL2832 (DVB-T)' registered.
[101578.123728] r820t 10-001a: creating new instance
[101578.130888] r820t 10-001a: Rafael Micro r820t successfully identified
[101578.132635] rtl2832_sdr rtl2832_sdr.2.auto: Registered as swradio0
[101578.132637] rtl2832_sdr rtl2832_sdr.2.auto: Realtek RTL2832 SDR attached
[101578.132639] rtl2832_sdr rtl2832_sdr.2.auto: SDR API is still slightly experimental and functionality changes may follow
[101578.139777] Registered IR keymap rc-empty
[101578.139824] rc rc0: Realtek RTL2832U reference design as /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.5/rc/rc0
[101578.139917] rc rc0: lirc_dev: driver dvb_usb_rtl28xxu registered at minor = 0, raw IR receiver, no transmitter
[101578.139947] input: Realtek RTL2832U reference design as /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.5/rc/rc0/input27
[101578.140128] usb 2-1.5: dvb_usb_v2: schedule remote query interval to 200 msecs
[101578.152771] usb 2-1.5: dvb_usb_v2: 'Realtek RTL2832U reference design' successfully initialized and connected
Langage du code : PHP (php)Installer le packet
sudo apt install rtl-sdr rtl-433
Puis lancement du rtl_test:
$ rtl_test
Found 1 device(s):
0: Realtek, RTL2838UHIDIR, SN: 00000001
Using device 0: Generic RTL2832U OEM
Detached kernel driver
Found Rafael Micro R820T tuner
Supported gain values (29): 0.0 0.9 1.4 2.7 3.7 7.7 8.7 12.5 14.4 15.7 16.6 19.7 20.7 22.9 25.4 28.0 29.7 32.8 33.8 36.4 37.2 38.6 40.2 42.1 43.4 43.9 44.5 48.0 49.6
[R82XX] PLL not locked!
Sampling at 2048000 S/s.
Info: This tool will continuously read from the device, and report if
samples get lost. If you observe no further output, everything is fine.
Reading samples in async mode...
Allocating 15 zero-copy buffers
^CSignal caught, exiting!
User cancel, exiting...
Samples per million lost (minimum): 0
Reattached kernel driver
Langage du code : JavaScript (javascript)On arrive bien à chopper les trames du capteur de température lacrosse :
$ rtl_433 -f 433.92M
rtl_433 version 21.12 (2021-12-14) inputs file rtl_tcp RTL-SDR SoapySDR
Use -h for usage help and see https://triq.org/ for documentation.
Trying conf file at "rtl_433.conf"...
Trying conf file at "/home/fabien/.config/rtl_433/rtl_433.conf"...
Trying conf file at "/usr/local/etc/rtl_433/rtl_433.conf"...
Trying conf file at "/etc/rtl_433/rtl_433.conf"...
Registered 176 out of 207 device decoding protocols [ 1-4 8 11-12 15-17 19-23 25-26 29-36 38-60 63 67-71 73-100 102-105 108-116 119 121 124-128 130-149 151-161 163-168 170-175 177-197 199 201-207 ]
Detached kernel driver
Found Rafael Micro R820T tuner
Exact sample rate is: 250000.000414 Hz
[R82XX] PLL not locked!
Sample rate set to 250000 S/s.
Tuner gain set to Auto.
Tuned to 433.920MHz.
Allocating 15 zero-copy buffers
baseband_demod_FM: low pass filter for 250000 Hz at cutoff 25000 Hz, 40.0 us
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
time : 2026-09-05 11:50:40
model : LaCrosse-TX141THBv2 Sensor ID : fc
Channel : 00 Battery : 1 Temperature: 23.20 C Humidity : 66 % Test? : Yes Integrity : CRC
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
time : 2026-09-05 11:50:40
model : LaCrosse-TX141THBv2 Sensor ID : fc
Channel : 00 Battery : 1 Temperature: 23.20 C Humidity : 66 % Test? : Yes Integrity : CRC
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
time : 2026-09-05 11:50:43
model : LaCrosse-TX141THBv2 Sensor ID : fc
Channel : 00 Battery : 1 Temperature: 23.20 C Humidity : 66 % Test? : Yes Integrity : CRC
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
time : 2026-09-05 11:50:43
model : LaCrosse-TX141THBv2 Sensor ID : fc
Channel : 00 Battery : 1 Temperature: 23.20 C Humidity : 66 % Test? : Yes Integrity : CRC
Langage du code : JavaScript (javascript)
