Probleme mit DHT22 Sensor

[westpole]

Hi

• Bevor ich mit meiner Frage starte, erstmal die Hardware:

• Pi 3b+

• Original 7 Zoll Touchscreen plus Gehäuse

• Hängt am Kabel

• Aktuelle MM2 Version

• DHT22 Sensor hängt an PIN 2 (vcc), 9 (gnd) & 11 (data)

• Modul von hier

Habe alles nach der Installationsanleitung gemacht. Aber beim Punkt

Test the Library (Optional):
cd examples
python3 AdafruitDHT.py 22 <GPIO_PIN>

wird mir folgendes angezeigt:

Traceback (most recent call last):
  File "/home/westpole/Adafruit_Python_DHT/examples/AdafruitDHT.py", line 41, in <module>
    humidity, temperature = Adafruit_DHT.read_retry(sensor, pin)
                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/dist-packages/Adafruit_DHT-1.4.0-py3.11-linux-aarch64.egg/Adafruit_DHT/common.py", line 94, in read_retry
    humidity, temperature = read(sensor, pin, platform)
                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/dist-packages/Adafruit_DHT-1.4.0-py3.11-linux-aarch64.egg/Adafruit_DHT/common.py", line 80, in read
    platform = get_platform()
               ^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/dist-packages/Adafruit_DHT-1.4.0-py3.11-linux-aarch64.egg/Adafruit_DHT/common.py", line 63, in get_platform
    raise RuntimeError('Unknown platform.')
RuntimeError: Unknown platform.

EGAL welchen GPIO oder PIN ich angebe. Es erscheint immer die selbe Meldung. Wenn ich dann per npm run start den MM starte, kommt folgende Fehlermeldung:

[ERROR] Python process error: Traceback (most recent call last):
  File "/home/westpole/MagicMirror/modules/MMM-DHT22/read_dht22_sensor.py", line 17, in <module>
 
[2024-05-09 20:10:23.911] [ERROR] Python process error:     humidity, temperature = read_dht22_sensor()
                            ^^^^^^^^^^^^^^^^^^^
  File "/home/westpole/MagicMirror/modules/MMM-DHT22/read_dht22_sensor.py", line 14, in read_dht22_sensor
    humidity, temperature = Adafruit_DHT.read_retry(SENSOR_TYPE, gpio_pin)
                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/dist-packages/Adafruit_DHT-1.4.0-py3.11-linux-aarch64.egg/Adafruit_DHT/common.py", line 94, in read_retry
 
[2024-05-09 20:10:23.913] [ERROR] Python process error:     humidity, temperature = read(sensor, pin, platform)
                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/dist-packages/Adafruit_DHT-1.4.0-py3.11-linux-aarch64.egg/Adafruit_DHT/common.py", line 80, in read
 
[2024-05-09 20:10:23.915] [ERROR] Python process error:     platform = get_platform()
               ^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/dist-packages/Adafruit_DHT-1.4.0-py3.11-linux-aarch64.egg/Adafruit_DHT/common.py", line 63, in get_platform
    raise RuntimeError('Unknown platform.')
RuntimeError: Unknown platform.
 
[2024-05-09 20:10:23.965] [LOG]   Python process exited with code 1

Prinzipiell löuft MM, aber der DHT Sensor zeigt eben nix an.
Wie kann ich das Problem lösen? :)

[sdetweil]

@westpole said in Probleme mit DHT22 Sensor:

Adafruit_DHT

did you install the library in python??>

can u tell us which module this is? i dont find DH222 Sensor with that python script

[westpole]

@sdetweil

Hi

That´s my Sensor , and that´s my config:

module: "MMM-DHT22",
			position: "top_left",
			config: {
			gpioPin: 17,
    			fontSize: '16px', // Font size for the header
                 fontFamily: 'Arial', // Font family for module text
                showThermometerIcon: true, // Show the thermometer icon
                showDropletIcon: true, // Show the droplet icon
                showTemperatureText: true, // Show the "Temperature" text
                showHumidityText: true, // Show the "Humidity" text
                headerText: 'Local Environment', // Header text displayed above the values
                updateInterval: 120, // Update interval in seconds for fetching sensor data
                temperatureIconColor: 'red', // Color of the temperature icon
                humidityIconColor: 'blue', // Color of the humidity icon
                temperatureFontSize: '18px', // Font size for temperature
                humidityFontSize: '14px', // Font size for humidity
                temperatureOffset: 0, // Temperature offset adjustment in degrees Celsius
                humidityOffset: 0,    // Humidity offset adjustment in percentage points
                temperatureUnit: 'C', // Default to Celsius ('C') or use 'F' for Fahrenheit
                layout: 'horizontal', // Default layout style ('horizontal' or 'vertical')