Contents hide
1 Step 1: Gather the Necessary Components
2 Step 2: Connect the Sensors
3 Step 3: Install Required Libraries and Software
4 Step 4: Create the Weather Station Script

Monitoring the weather conditions in your local area can be an exciting and educational experience. With this Raspberry Pi weather station tutorial, you’ll learn how to create your very own personalized weather monitoring system using affordable, easy-to-find components. By following these simple steps, you’ll be able to track various weather parameters like temperature, humidity, and air pressure right from the comfort of your home.

Personalized Weather Monitoring System
Personalized Weather Monitoring System

Step 1: Gather the Necessary Components

To build your Raspberry Pi weather station, you’ll need the following components:

  • Raspberry Pi (any model with a 40-pin GPIO header, preferably a Raspberry Pi 3 or 4)
  • Micro SD card (at least 8 GB) with Raspbian OS installed
  • Power supply for Raspberry Pi
  • DHT22/AM2302 temperature and humidity sensor
  • BMP280/BME280 pressure sensor
  • Breadboard
  • Jumper wires (male-to-female and male-to-male)
  • Optional: Weatherproof enclosure and outdoor mounting solution

Step 2: Connect the Sensors

First, connect the DHT22 temperature and humidity sensor to the Raspberry Pi:

  1. Plug the sensor into the breadboard.
  2. Connect the 3.3V pin on the Raspberry Pi to the VCC (power) pin on the sensor using a male-to-female jumper wire.
  3. Connect a GPIO pin (e.g., GPIO4) on the Raspberry Pi to the data pin on the sensor using a male-to-female jumper wire.
  4. Connect a GND (ground) pin on the Raspberry Pi to the GND pin on the sensor using a male-to-female jumper wire.

Next, connect the BMP280/BME280 pressure sensor to the Raspberry Pi:

  1. Plug the sensor into the breadboard.
  2. Connect the 3.3V pin on the Raspberry Pi to the VCC (power) pin on the sensor using a male-to-female jumper wire.
  3. Connect the GND pin on the Raspberry Pi to the GND pin on the sensor using a male-to-female jumper wire.
  4. Connect the SDA pin on the Raspberry Pi to the SDA pin on the sensor using a male-to-female jumper wire.
  5. Connect the SCL pin on the Raspberry Pi to the SCL pin on the sensor using a male-to-female jumper wire.

Step 3: Install Required Libraries and Software

Power on your Raspberry Pi and update the software:

update the software
update the software

sudo apt-get update

sudo apt-get upgrade

Install the required libraries for DHT22 and BMP280/BME280 sensors:

Install the required libraries
Install the required libraries

sudo apt-get install build-essential python-dev python-pip

sudo pip install Adafruit_DHT

sudo pip install Adafruit_BMP

Step 4: Create the Weather Station Script

Create a new Python script:

new Python script
new Python script

nano weather_station.py

Copy and paste the following code into the script, replacing “GPIO4” with the GPIO pin you connected the DHT22 sensor to:

replacing GPIO4 with the GPIO pin
replacing GPIO4 with the GPIO pin

import time

import Adafruit_DHT

import Adafruit_BMP.BMP280 as BMP280

DHT_SENSOR = Adafruit_DHT.DHT22

DHT_PIN = 4  # Replace with your GPIO pin

bmp280 = BMP280.BMP280()

while True:

    humidity, temperature = Adafruit_DHT.read_retry(DHT_SENSOR, DHT_PIN)

    pressure = bmp280.read_pressure() / 100

    if humidity is not None and temperature is not None and pressure is not None:

        print(“Temperature: {:.1f}C, Humidity: {:.1f}%, Pressure: {:.2f}