To set up a DHT11 sensor on a Raspberry Pi according to the article, you’ll need to use the following commands: (use DHT11 module and pin 1,6,7)

1. Update and Upgrade:

sudo apt-get update
sudo apt-get upgrade

2. Install Python Packages:

sudo apt-get install python3-pip python3-dev

3. Install DHT11 Python Library:

pip3 install Adafruit_DHT
pip3 install RPi.GPIO

4. Run a test script: To test the sensor, you can create a Python script and run it. The article provides the following code to save as dht11-test.py:

import Adafruit_DHT
import time

# Set the sensor type and GPIO pin number
sensor = Adafruit_DHT.DHT11
pin = 4

# Attempt to get a sensor reading
try:
    while True:
        humidity, temperature = Adafruit_DHT.read_retry(sensor, pin)

        # Print the data to the console
        print('Temp={0:0.1f}*C  Humidity={1:0.1f}%'.format(temperature, humidity))
        
        # Wait for 3 seconds before the next reading
        time.sleep(3)

except RuntimeError as error:
    # Errors happen, but sometimes a good retry is all you need.
    print(error.args[0])
    time.sleep(2.0)

except KeyboardInterrupt:
    print('Exiting the script.')

To run the script, save the file and use this command:

python3 dht11-test.py