1. visitor
    22. July 2019 @ 20:18

    Thanks, some instructions are confusing though:

    build-essential – more parameters needed?
    # Datei no-rto.conf anlegen – german? + typo (rto = rtl)
    # ergänzen um diese drei Zeilen – german?
    rtl-sdr doxygen – typo(?) (rtl-sdr = rtl_sdr)
    program:rtl_433] – not sure but should this be [rtl_433] instead of rtl_433] ?


    • admin
      29. July 2019 @ 13:31

      Thank you for the corrections. They should be in by now.


      • Rick Tracer
        14. November 2019 @ 17:37

        Correction still needed of rtl-sdr doxygen to rtl_sdr doxygen


  2. Juergen Schubert
    1. September 2019 @ 10:10

    Hey Andreas, great content and great help. Anyhow I tried your approach and had issues with the rtl_433 command to mqtt so I modified your’s a little while I created a shell file with the RTL_433 command which I entered into the rtl_433.conf. So the solution is working now.

    sudo nano /home/pi/my-scripts/rtl433.sh

    /usr/local/bin/rtl_433 -F json -R 3 -R 32 -R 86 -R 109 | /usr/bin/mosquitto_pub -h -u -P -i RTL_433 -l -t RTL_433/JSON

    I also modified your
    sudo nano /etc/supervisor/conf.d/rtl_433.conf
    Enter into file:


  3. edy
    9. November 2019 @ 2:07

    I have been able to get a message from the 433 mhz temperature sensor on the ltx terminal, but rtl-power on the red node cannot receive the message, please help


    • admin
      5. December 2019 @ 14:03

      Unfortunately, I cannot do remote debugging. I do not have the time for that.


  4. ercan
    7. January 2020 @ 6:10

    Hi Andreas;
    works fine on raspberry pi for 2 or 3 minutes but, after get an error.

    cb transfer status: 1, canceling…
    LIBUSB_ERROR_NOT_FOUND: Entity not found!
    Check your RTL-SDR dongle, USB cables, and power supply.
    WARNING: async read failed (-5).
    Library error -5, exiting…


    • admin
      9. January 2020 @ 16:53

      Maybe you log an issue on GitHub. I do not know the program in detail, I am just a user.


  5. SomeoneOnInternet
    12. June 2020 @ 21:28

    Hi Andreas,
    I dusted off my Raspberry Pi lately, and stumbled across your YouTube channel. I loved it.
    You are full of useful tips, and I did find myself going from “where do I start?” to “I can’t believe I did that and it all works”.
    From my point of view, you represent B-U-I-L-D “Better Understanding Involves Learning and Doing”.
    Thank you so much. Good luck with the QO-100


  6. TheGuyWithTheGermanAccent
    26. July 2020 @ 13:28

    this was very helpful! Thank you a lot 🙂


  7. Dave
    15. August 2020 @ 13:51

    Shut down switch question
    I have a real time clock that uses pin 3 , what is the best way to get around this. I am a ham radio operator, and using KM4ACK build a pi 3 script as seen on YouTube.

    Thank you,
    Dave, K4UZM


    • admin
      4. September 2020 @ 13:37

      I would ask KM4ACK to add such a feature to his build. I assume not only you have this problem. I saw python programs which used other pins than GPIO3


  8. IT guy
    16. November 2020 @ 1:52

    Surely this is passing the Mqtt credentials unencrypted?


    • admin
      16. November 2020 @ 12:21

      I assume you are right. I do not care because it is behind my firewall.


  9. Charles Darwall
    8. January 2021 @ 2:41

    I’m a Swiss-born adult male now living in Chicago. I love your accent. Love the Gruzi! Love the projects.

    danke vielmal!

    PS where is the download for the beer

    Charles (Karl)


    28. June 2021 @ 17:36

    I have set up the weather station and added to homeassistant, My question is about the wind speed/ gust. The figures I would assume are in MPH or possibly KMH how do I find out which. On the RTL_433 it states the figures are in M/s but I don’t this is correct as 9M/s is really windy and when this speed was reported there was hardly a breeze.

    Top work BTW.


    • admin
      30. June 2021 @ 8:53

      AFAIK my values come in 10 x km/h. The only way you can check is to use a wind speed meter in parallel and compare the values.


Leave a Reply

This site uses Akismet to reduce spam. Learn how your comment data is processed.