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    A New Chapter for MagicMirror: The Community Takes the Lead
    Read the statement by Michael Teeuw here.

    MMM-DHT22

    Scheduled Pinned Locked Moved Utilities
    27 Posts 9 Posters 5.9k Views 9 Watching
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    • L Offline
      lif @lif
      last edited by

      Thanks, not the end of the world if I can’t use it.

      wishmaster270W 1 Reply Last reply Reply Quote 0
      • wishmaster270W Offline
        wishmaster270 Module Developer @lif
        last edited by

        @lif Hi. Great you want to try one of my modules.

        Can you try installing a additional python system package with

        sudo apt install python3-rpi-lgpio
        

        I tried the scripts on my newly installed system with Bookworm and everything worked as expected.
        Maybe the missing package had been installed with something else I installed on my system.

        L 1 Reply Last reply Reply Quote 0
        • L Offline
          lif @wishmaster270
          last edited by

          @wishmaster270 said in MMM-DHT22:

          @lif Hi. Great you want to try one of my modules.

          Can you try installing a additional python system package with

          sudo apt install python3-rpi-lgpio
          

          I tried the scripts on my newly installed system with Bookworm and everything worked as expected.
          Maybe the missing package had been installed with something else I installed on my system.

          Thanks, that was already installed

          sudo apt install python3-rpi-lgpio
          Reading package lists... Done
          Building dependency tree... Done
          Reading state information... Done
          python3-rpi-lgpio is already the newest version (0.6-0~rpt1).
          0 upgraded, 0 newly installed, 0 to remove and 1 not upgraded.
          
          

          This is on Bookworm

          wishmaster270W 1 Reply Last reply Reply Quote 0
          • wishmaster270W Offline
            wishmaster270 Module Developer @lif
            last edited by

            @lif
            That’s strange…Can you try to start with a new, fresh virtual python environment and install the needed libs again?

            Remove old virtual environment:

            rm -rf /home/pi/MagicMirror/modules/MMM-Temperature/scripts/py-venv
            

            Install the needed system libs:

            sudo apt -y update && sudo apt -y install python3-venv libgpiod2
            

            Re-Create the virtual environment:

            cd ~/MagicMirror/modules/MMM-Temperature/scripts
            ./venvWrapper.py --verbose --venv-name py-venv --create
            

            Re-Install the libs:

            cd ~/MagicMirror/modules/MMM-Temperature/scripts
            ./venvWrapper.py --venv-name py-venv --install-libs adafruit-circuitpython-dht
            

            Run the test again:

            cd ~/MagicMirror/modules/MMM-Temperature/scripts
            ./venvWrapper.py --venv-name py-venv --run ./dht22
            

            If it fails again. Can you please provide the output of

            cd ~/MagicMirror/modules/MMM-Temperature/scripts
            source py-venv/bin/activate
            pip freeze
            deactivate
            

            The output should look something like:

            Adafruit-Blinka==8.66.1
            Adafruit-Blinka-Raspberry-Pi5-Neopixel==1.0.0rc2
            adafruit-circuitpython-busdevice==5.2.13
            adafruit-circuitpython-connectionmanager==3.1.5
            adafruit-circuitpython-dht==4.0.9
            adafruit-circuitpython-requests==4.1.13
            adafruit-circuitpython-typing==1.12.2
            Adafruit-PlatformDetect==3.83.2
            Adafruit-PureIO==1.1.11
            binho-host-adapter==0.1.6
            lgpio==0.2.2.0
            pyftdi==0.57.1
            pyserial==3.5
            pyusb==1.3.1
            rpi-ws281x==5.0.0
            RPi.GPIO==0.7.1
            sysv-ipc==1.1.0
            typing_extensions==4.15.0
            
            S 1 Reply Last reply Reply Quote 0
            • S Offline
              sdetweil @wishmaster270
              last edited by

              @wishmaster270 AND you must enable the virtual env in the script if pm2 starts MagicMirror

              Sam

              How to add modules

              learning how to use browser developers window for css changes

              wishmaster270W 1 Reply Last reply Reply Quote 0
              • wishmaster270W Offline
                wishmaster270 Module Developer @sdetweil
                last edited by

                @sdetweil Hi sam. My wrapper script will use the python binary in the virtual environment folder. This way the environment will be activated automatically.

                S 1 Reply Last reply Reply Quote 0
                • S Offline
                  sdetweil @wishmaster270
                  last edited by

                  @wishmaster270 cool, you have the venv in the module folder

                  Sam

                  How to add modules

                  learning how to use browser developers window for css changes

                  1 Reply Last reply Reply Quote 0
                  • L Offline
                    lif
                    last edited by

                    @wishmaster270 said in MMM-DHT22:

                    source py-venv/bin/activate

                    Same failure on install.

                    from RPi import GPIO
                    ModuleNotFoundError: No module named 'RPi'
                    ```, 
                    
                    The output of pip freeze is ```
                    MagicMirror/modules/MMM-Temperature/scripts $ source py-venv/bin/activate
                    (py-venv) pi@mm:~/MagicMirror/modules/MMM-Temperature/scripts $ pip freeze
                    Adafruit-Blinka==8.66.2
                    adafruit-circuitpython-busdevice==5.2.13
                    adafruit-circuitpython-connectionmanager==3.1.5
                    adafruit-circuitpython-dht==4.0.9
                    adafruit-circuitpython-requests==4.1.13
                    adafruit-circuitpython-typing==1.12.2
                    Adafruit-PlatformDetect==3.84.0
                    Adafruit-PureIO==1.1.11
                    binho-host-adapter==0.1.6
                    pyftdi==0.57.1
                    pyserial==3.5
                    pyusb==1.3.1
                    sysv-ipc==1.1.0
                    typing_extensions==4.15.0
                    (py-venv) pi@mm:~/MagicMirror/modules/MMM-Temperature/scripts $ deactivate
                    pi@mm:~/MagicMirror/modules/MMM-Temperature/scripts $ 
                    

                    The only difference from yours is mine is missing the second line.

                    Hope this helps

                    1 Reply Last reply Reply Quote 0
                    • L Offline
                      lif
                      last edited by

                      Hi,

                      I’ve gone through your procedure again and this time it works.

                      The only difference is that I run a python3 script to control screen blanking using a PIR before starting Magic Mirror, this time I didn’t start that script.

                      With the PIR script and MagicMirror running I get:

                      pi@mm:~/MagicMirror/modules/MMM-Temperature/scripts $ ./venvWrapper.py --venv-name py-venv --run ./dht22
                      {"temperature_c": 23.5, "humidity": 53.7, "temperature_f": 74.30000000000001, "error": false}
                      pi@mm:~/MagicMirror/modules/MMM-Temperature/scripts $ ./venvWrapper.py --venv-name py-venv --run ./dht22
                      {"temperature_c": 23.5, "humidity": 53.7, "temperature_f": 74.30000000000001, "error": false}
                      pi@mm:~/MagicMirror/modules/MMM-Temperature/scripts $ ./venvWrapper.py --venv-name py-venv --run ./dht22
                      {"temperature_c": 0.0, "humidity": 0.0, "temperature_f": 32.0, "error": true}
                      pi@mm:~/MagicMirror/modules/MMM-Temperature/scripts $ ./venvWrapper.py --venv-name py-venv --run ./dht22
                      {"temperature_c": 23.6, "humidity": 53.5, "temperature_f": 74.48, "error": false}
                      pi@mm:~/MagicMirror/modules/MMM-Temperature/scripts $ ./venvWrapper.py --venv-name py-venv --run ./dht22
                      {"temperature_c": 0.0, "humidity": 0.0, "temperature_f": 32.0, "error": true}
                      pi@mm:~/MagicMirror/modules/MMM-Temperature/scripts $ ./venvWrapper.py --venv-name py-venv --run ./dht22
                      {"temperature_c": 23.7, "humidity": 53.3, "temperature_f": 74.66, "error": false}
                      pi@mm:~/MagicMirror/modules/MMM-Temperature/scripts $ ./venvWrapper.py --venv-name py-venv --run ./dht22
                      {"temperature_c": 23.8, "humidity": 53.2, "temperature_f": 74.84, "error": false}
                      pi@mm:~/MagicMirror/modules/MMM-Temperature/scripts $ 
                      
                      

                      I can live with that.

                      Thanks for all your help

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