MMM-DHT22

sdetweil

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

wishmaster270

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

sdetweil

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

lif

@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

lif

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