The Raspberry Pi Weather Station not only shows you how to get started in IoT, but also gives you an end product that’s useful as well.  This  project uses the Raspberry Pi Sense HAT in conjunction with the Pi3 and Initial state’s cloud service to build a weather station using the Sense HAT’s sensors to measure the external environment and send it to the cloud where you can view it on any web browser.

Project Video

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Step by Step Guide

For this project, you will need:

  • Raspberry Pi 3

  • SenseHAT Add-on board

  • Micro SD card with Rasbian OS

  • Raspberry Pi Power Supply

 

  • Insert the pre-programmed micro SD into Raspberry Pi 3 micro SD card slot

  • Connect the SenseHAT add-on board on top of the RPi GPIO pin header

  • Connect the RPI to the monitor, keyboard & mouse

  • Now connect the power supply and turn it ON

  • Wait for RPi to bootup

 

Initialstate Cloud Account Registration

  • Go to www.initialstate.com and sign up for a free account

  • Once logged into your account, go to my account.  
    Click on “Create a New Key” to generate your key which will be used to stream the data.  Write down your access key information.

Initialstate ISStreamer Installation

In order to install ISStreamer, open the Terminal window and type in the following commands:

\curl -sSL https://get.initialstate.com/python -o - | sudo bash

If asked, you may need to enter your Initialstate account credential password to proceed.

SenseHAT Installation

In Terminal window type in the following commands:

sudo apt-get update
sudo apt-get install sense-hat

Python Coding - Weather Station Code

  • Open a python editor and save the following code as pi_weather.py (or you can download the pi_weather.py file from below)

    from sense_hat import SenseHat
    
    	from ISStreamer.Streamer import Streamer
    
    	logger = Streamer(bucket_name="Sense Hat Environment Stream", access_key="YOUR_KEY_HERE")
    
    	import time
    
    	import sys
    
            sense = SenseHat()
    
    	sense.clear()
    
    	var = 30
    
    	while var > 0:
    
    	  temp = sense.get_temperature()
    
    	  temp = round(temp, 1)
    
    	  logger.log("Teperature C",temp)
    
    	  humidity = sense.get_humidity()
    
    	  humidity = round(humidity, 1)
    
    	  logger.log("Humidity :",humidity)
    
    	  pressure = sense.get_pressure()
    
    	  pressure = round(pressure, 1)
    
    	  logger.log("Pressure:",pressure)
    
    	  var = var -1
    
    	  time.sleep(30)
    
    	  if var == 0:
    
    	    sys.exit()
  • Replace the text “ENTER YOUR KEY” with your Access Key you wrote down from www.initialstate.com

  • Copy pi_weather.py to a USB drive

Code Executeiation

  • To run the weather station, type in the following into your terminal window:sudo python pi_weather.py

  • To monitor your weather data on your web browser, log in to your Initial State account and start monitoring the data.

 

Downloads

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