rtl_433
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rtl_433 | dsd | |
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172 | 14 | |
5,665 | 107 | |
- | - | |
9.3 | 3.3 | |
1 day ago | 21 days ago | |
C | C++ | |
GNU General Public License v3.0 only | GNU General Public License v3.0 or later |
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rtl_433
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Reverse engineering a car key fob signal
And there's a multiformat receiver block too: https://github.com/merbanan/rtl_433
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What is this signal?
Use https://github.com/merbanan/rtl_433 to decode
- Elster TPR11 water meter reader
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Building a Weather Station
Why wait?
Those fancy weather stations often transmit to the indoor LCD display using fairly simply messages sent in the 433 MHz band or the 915 MHz band. For many those message formats have been reverse engineered and decoders for them added to open source SDR software such as rtl_433 [1].
With a $30 USB RTL-SDR and rtl_433 you can then use the sensor units from many of those fancy units as inputs to your own display and analysis software. And you can often use your neighbors' sensors too. One of my neighbors--I still haven't figured out which--has an AcuRite 5-in-1 system and I can see its readings using my RTL-SDR and rtl_433.
If you build your own sensors it is cheap and easy to add a 433 MHz transmitter and define your own message format. Rtl_433 can be extended to cover new message formats by giving it a config file that describes the formats.
There's a driver for Weewx to let it use rtl_433 [3].
You can get an RTL-SDR and rtl_433 now, and start playing around with whatever sensors others in your neighborhood happen to have.
[1] https://github.com/merbanan/rtl_433
[2] https://www.acurite.com/shop-all/weather-instruments/weather...
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[Newb] Need help with wind speed\direction sension
Outside of that, any of the consumer weather stations (or cheaper rebadged options) that transmit via RF433 could be picked up with a cheap SDR dongle and converted to MQTT topics using rtl_433 for use within Tasmota.
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Monitoring My Weather at Home
Looks like you can skip the logger and get a cheap rtlsdr to log data wirelessly (using e.g. https://github.com/bemasher/rtldavis).
A cheaper still route would be to grab the outdoor sensors for a weather station supported by [rtl_433](https://github.com/merbanan/rtl_433) (or receive signals from a neighbor!)
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GitHub - merbanan/rtl_433: Program to decode radio transmissions from devices on the ISM bands (and other frequencies)
There are some notes in the docs https://triq.org/rtl_433/ANALYZE.html And some guides in the wiki https://github.com/merbanan/rtl_433/wiki
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Finally got something on 915MHZ
That report is a false positive which was fixed only 3 month ago: https://github.com/merbanan/rtl_433/pull/2214 You likely want to try the 22.11 release.
dsd
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Listen to DMR for free
Linux, librtlsdr and this port of DSD. FWIW, this port of DSD is newer and also has a Windows binary.
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How can we convert a DMR signal into clear voice by RTL_SDR?
In Linux, I use this particular port of DSD - this can be piped into from GQRX, rtl_fm+sox, SDR# or any other SDR software that can output the audio of said signal as raw, 44KHz PCM unsigned audio (mono).
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Having trouble following tutorial
I'd personally use this fork of DSD, has better TG/CC/DMR ID output... https://github.com/LouisErigHerve/dsd
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Best DMR decoding software.
I personally prefer This DSD client
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A list of things I could do with SDR
DMR, dPMR, Fusion and more with dsd
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Snap package for DSD
May want to try this fork; https://github.com/LouisErigHerve/dsd also supports dPMR.
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What's a good Linux-compatible multipurpose decoder of RF signals?
dsd for digital voice modes, dPMR, DMR, P25, Fusion, Yeasu etc.
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Use DSD and librtlsdr userland programs on Android without root!
Have suggested before that both DSD and the librtlsdr can work on Android without root. It does require Termux, however.
What are some alternatives?
rtl-wmbus - Software defined receiver for wireless M-Bus with RTL-SDR
rtlamr - An rtl-sdr receiver for Itron ERT compatible smart meters operating in the 900MHz ISM band.
sdrangel - SDR Rx/Tx software for Airspy, Airspy HF+, BladeRF, HackRF, LimeSDR, PlutoSDR, RTL-SDR, SDRplay RSP1 and FunCube
multimon-ng
ESPHome-VideoDoorbell - Doorbell made using ESPHome with a TTGO T-Camera
mayhem-firmware - Custom firmware for the HackRF+PortaPack H1/H2
mbelib - P25 Phase 1 and ProVoice vocoder
SDRPlusPlus - Cross-Platform SDR Software
gcc_termux - Gcc for termux with fortran scipy etc... Use apt for newest updates instructions in README.txt
shinysdr-docker - Docker build of debian, gnuradio and shinysdr with all plugins
adsb-exchange - ADS-B Exchange Linux Setup Scripts