Problem with testWirelessSensors.py

mikemcdonald
New Member

Posts: 25

Problem with testWirelessSensors.py Feb 26, 2021 14:33:42 GMT -8

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Post by mikemcdonald on Feb 26, 2021 14:33:42 GMT -8

Can't figure out what I am doing wrong here. I used the prebuilt SD card image and hooked everything up. All other tests run just fine. But this one doesn't. Here's what happens:

pi@WeatherStation:~/SDL_Pi_SkyWeather2 $ sudo python3 testWirelessSensors.py

Starting Wireless Read

rtl_433 version -128-NOTFOUND branch master at 202010011416 inputs file rtl_tcp RTL-SDR

Use -h for usage help and see triq.org/ for documentation.

Trying conf file at "rtl_433.conf"...

Trying conf file at "/root/.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"...

quiet option (-q) is default and deprecated. See -v to increase verbosity

Consider using "-M newmodel" to transition to new model keys. This will become the default someday.

A table of changes and discussion is at github.com/merbanan/rtl_433/pull/986.

Registered 2 out of 147 device decoding protocols [ 146-147 ]

usb_claim_interface error -6

Jason
Senior Member

Posts: 482
Raspberry Pi: Yes

Problem with testWirelessSensors.py Feb 27, 2021 5:19:28 GMT -8

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Post by Jason on Feb 27, 2021 5:19:28 GMT -8

I’m pretty sure I’ve seen this error before. If memory serves me correctly, it occurs when two separate processes are trying to access the radio at the same time. The easiest way to figure out if that is the case would be to reboot the Pi and run the following command:

ps aux | grep ‘rtl_433’
If the output looks similar to the screenshot, your radio has already been claimed by a running process.

Jason

SDL Global Moderator Posts: 5,655 Raspberry Pi: Yes Other Device: PC, arduino, beagleBone	Problem with testWirelessSensors.py Feb 28, 2021 10:04:48 GMT -8 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by SDL on Feb 28, 2021 10:04:48 GMT -8 Jason is right. That's almost for sure what is going on. BP

mikemcdonald New Member Posts: 25	Problem with testWirelessSensors.py Mar 2, 2021 16:26:22 GMT -8 SDL and Jason like this Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by mikemcdonald on Mar 2, 2021 16:26:22 GMT -8 That got it. Thanks

lokki New Member Posts: 7	Problem with testWirelessSensors.py Sept 13, 2021 16:51:57 GMT -8 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by lokki on Sept 13, 2021 16:51:57 GMT -8 How does one fix this?

doxidad
Senior Member

Posts: 272
Raspberry Pi: Yes

Problem with testWirelessSensors.py Sept 14, 2021 4:01:48 GMT -8

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Post by doxidad on Sept 14, 2021 4:01:48 GMT -8

Sept 13, 2021 16:51:57 GMT -8 lokki said:

How does one fix this?

If you are going to run any of the test programs make sure you don't have SkyWeather2.py or WeatherSense.py executing. Either one of those will connect to the radio and claim it. If you do have one of them running, stop it before running the test program.

SDL Global Moderator Posts: 5,655 Raspberry Pi: Yes Other Device: PC, arduino, beagleBone	Problem with testWirelessSensors.py Sept 15, 2021 12:09:56 GMT -8 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by SDL on Sept 15, 2021 12:09:56 GMT -8 Doxidad is correct (as usual) That is the most common error. I have, in rare conditions, had to reboot the Pi to clear the USB usage of the SDR. BP

Post by mikemcdonald on Feb 26, 2021 14:33:42 GMT -8

Post by Jason on Feb 27, 2021 5:19:28 GMT -8

Post by SDL on Feb 28, 2021 10:04:48 GMT -8

Post by mikemcdonald on Mar 2, 2021 16:26:22 GMT -8

Post by lokki on Sept 13, 2021 16:51:57 GMT -8

Post by doxidad on Sept 14, 2021 4:01:48 GMT -8

Post by SDL on Sept 15, 2021 12:09:56 GMT -8

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