Raspberry Pi is a revolutionary

2021/05/21

The Raspberry Pi is a revolutionary device for the world of makers. 1.

The Smog was a human-created issue caused by farmers in nearby Indonesia.

If youre unsure how to do this, theres guidance on the Raspberry Pi website.

We divide the result by ten, because the SDS011 returns data in units of tens of grams per metre cubed and we want the result in that format aio.send is used to push data to Adafruit IO. A re you curious how you can contribute to a citizen science initiative? You can now run your sensor with: There are a variety of particulate sensors on the market.

the 404 is likely because you havent created the feeds so adafruit is trying to put them on your particular page but cant find them.

The other attraction of the Raspberry Pi is the community of independent hardware vendors who make add-ons called HATs. I mightvtry that too.

Human-driven industrial activity (e.g., factories, transportation, agricultural burning) and climate change (e.g., larger, more frequent fires) are further exacerbating the problem.

We will be building an at-home air quality monitor using Raspberry Pi and Enviro +.

Connect the SDS011 USB adapter to your Raspberry Pi.

So we can have some fun and learn together Ive chosen a path that is on the more accessible end but still requires some DIY electronics, building, and coding. , so you dont need to do any soldering at all! 9. y other countries have equivalent public networks. Since we wont be using our Raspberry Pi as a traditional computer, the Lite version is better.

Obviously, this is something thats important to know about, but its something that here in the UK we have relatively little data on. A way to read/write to your SD card from your computer.

The easiest method of calibration is to test it against an accurate sensor, and most cities here in the UK have monitoring stations as part of Defras Automatic Urban and Rural Monitoring Network. aio.send(AirQuality25pm, pmtwofive) However, that doesnt mean that air quality isnt a concern in Australia; substantial pollen blooms during springtime and extreme weather create risky scenarios such as thunderstorm-triggered asthma attacks. Most of this can be found at a DIY store, so pick what works for you, but Ill show you what I did later on. Can't navigate to IP address as per the last instruction in the tutorial.

Congratulations, youve (hopefully) successfully assembled the hardware and softwarePat yourself on the back.

Its a version of the operating system that does not have a desktop environment, meaning we wont be using applications on it like a browser, etc.

The next piece of hardware were going to use is. You can store your data wherever you like on the SD card, or upload it to some cloud service. These easy connections encouraged many manufacturers to create modules that can slot into the header and add some superpowers to the Raspberry Pi. you can buy HackSpace mag directly from us, https://luftdaten.info/en/construction-manual/, https://openschoolsolutions.org/measure-particulate-matter-with-a-raspberry-pi/, http://www.airqualityontario.com/aqhi/locations.php, https://www.hackster.io/damancuso/air-quality-measurements-and-analysis-in-a-spreadsheet-9fa887. Clone the repository with example code.

aio = Client(midnightbg, 588f599f68014fdf8445935ff56fba38), pmtwofive = int.from_bytes(b.join(data[2:4]), byteorder=little) / 10 time.sleep(10), It keeps giving me a : The SDS011 is only rated to work up to 70% humidity. New York, HackAIR has a formula for attempting to correct for this, but its not reliable enough to neutralise the effect completely. Here in Germany, some rental contracts require you to open your windows for 10 minutes a day to get Frische luft for good health. Being compact means it is less powerful, saving energy and space (but still more than powerful enough for our needs).

The one caveat is that the results are unreliable when the humidity is at the extremes (either very high or very low). In general, air quality in the southern hemisphere is better due to it being less populated than the northern hemisphere. Enter the command: With the code and electronic setup working, your sensor will need somewhere to live. Heres how to do it.

See their website for more details: Once youre monitoring your PM2.5 data, what should you look out for? However, that doesnt mean that air quality isnt a concern in Australia; substantial pollen blooms during springtime and extreme weather create risky scenarios such as. Share your progress and answers to the questions with me in the comments, I look forward to reading them.

Today we welcome guest author Ganesh Shankar, tinkerer and engineer. We will need to ensure that we put our device into a weather-proof container while still allowing air sampling access.

Its unlikely youll be able to find the same type of piping in all parts of the world, so just find some PVC drainpipe that you can assemble to hold the device. Scientific instruments were considered specialised instruments to manufacture, and sharing data with the world was a significant challenge.

Firstly, its cheap enough for many makers to be able to buy and build with. This may take a bit of time depending on your Raspberry Pi. 6.1 Go to devices.sensor.community and log in.

return self.create_data(feed, payload) File /home/pi/.local/lib/python3.7/site-packages/Adafruit_IO/client.py, line 154, in send_data Scientists need your help in collecting global air quality data. Ryder Damer is a Freelance Writer for Tom's Hardware US covering Raspberry Pi projects and tutorials.

Similarly, clean air is important to our health and wellbeing. The Raspberry Pi runs a Linux operating system and has networking, video, audio, and USB built-in so you can plug it into power, a screen, monitor, and keyboard and write programs for it from the device itself! Now, because we installed Raspberry Pi OS Lite, there are a couple of additional configuration steps we want to do to preconfigure the device so we can remotely access it when we power it up. Would you mind sharing where I can learn how use Adafruit?

Any help would be greatly appreciated.

What factors contribute to air quality (good or bad) in your home region? Sorry, I'm a noob!

Mount the SDS011 sensor and your Raspberry Pi to a small block of wood. Now lets democratise air quality data so we can make better decisions about the places we live.

3. At this point, everything should work and you can set about running your sensor, but as one final point, lets set it up to start automatically when you turn the Raspberry Pi on. I was thrilled to find this project and share it with you.

Ive always been a giant nerd, fascinated with taking technology apart and building computers from a young age. However, I remember distinctly from my childhood an annual phenomenon called The Smog when asthmatics and those with respiratory issues were told to stay indoors.

We picked the SDS011 for a couple of reasons.

https://openschoolsolutions.org/measure-particulate-matter-with-a-raspberry-pi/ in 2018, For those in Ontario, Canada, there are 39 monitoring stations you could use to help calibrate or check your readings. The very simplest way of using this is to connect it to a computer. PM stands for particulate matter and the number after is the amount of micrometers, 2.5 or 10. Without it, you could still make a pretty fun sensor package.

You will need to push a little but double-check to make sure its oriented the right way (the HAT should sit over the board) and with all pins aligned and dont force it! When it comes to small, low-power boards with USB ports, theres one that always springs to mind the Raspberry Pi. You might want to choose a more geographically relevant name. First, youll need a Raspberry Pi (any version) thats set up with the latest version of Raspbian, connected to your local network, and ideally with SSH enabled. Before we dive into the project, I want to share a bit of background on the technology were working with and why we live in such an exciting time for citizen science and technology projects. Particles of PM2.5 are particularly bad for your health if they contain toxic substances. First, it reads ten bytes of data over the serial port exactly ten because thats the format that the SDS011 sends data in and sticks these data points together to form a list of bytes that we call data. Add a sensor and some Python 3 to your Raspberry Pi to keep tabs on your local air pollution, in the project taken from Hackspace magazine issue 21. Now that we know our Raspberry Pi and air quality sensors are working, its time to contribute to the world of science!

I found that removing two screws from the right side of the Pibow case (dont worry, it wont open) and using a wire clipper to strip off some of the bend protection on my micro-USB cable (we actually do want it to bend here) helped me make it fit snugly. on attaching your Enviro + Air Quality Hat and testing its functions.

We used a Tupperware box with a hole cut in the bottom mounted on the wall, with a USB cable carrying power out via a window. I am brand new to this, so Im sure Im doing something wrong.

1.5 Select Choose SD Card and pick the micro SD card you inserted (you might need to format it). pmten = int.from_bytes(b.join(data[4:6]), byteorder=little) / 10

The Envirohat looks pretty neat!

**Note, if you get an error when trying to run the command: You might be missing a required Python module Requests, simply run the following command: Once I ran the command, the error resolved. 6.3 Click on Show on Map to see the air quality data for your local area, centred on your device.

Yeah, that does look good. When I type in this line import serial, time I get the following bash: import: command not found. You can. You may want to take precautions to prevent birds/animals from building nests in there too.

time.sleep(10). and airing out your place is essential to keeping you in good health? Navigate to your Pis IP address on port 8000 to view the web server, and a small graph of recent measurements of air quality.

The one caveat is that the results are unreliable when the humidity is at the extremes (either very high or very low).

This step is optional, you can also use a case, but I like the open air look of the system.

this project would be great for universities to use all they need is to give a location for people to upload the data and maybe allow those nearby to calibrate the sensors. So I encourage you to search for modifications that work for you.

I would recommend purchasing this model, which comes with the Header (the rows of pins) pre-installed, so you dont need to do any soldering at all!

Go to devices.sensor.community and follow their prompts to get set up and start contributing to citizen science. Make sure your SD Card is inserted (as you wont be able to get to it again quickly once you build the case), I assembled the Pibow Zero W as per this guide. The first command is the feed value you want the data to go to. when I put it in the terminal of the raspberry pi (via VNC on my MBP) I dont get very far before I get an error.

Once youre monitoring your PM2.5 data, what should you look out for? However, even these might not be safe. There are links to articles in this comment thread that cover that.

Perhaps theres an issue with the sensor, or perhaps theres a problem with the code.

Its about 78% nitrogen, 21% oxygen, and 1% argon, and then theres the assorted other bits and pieces many of which have been spewed out by humans and our related machinery. This project is su much more easy with an ESP8266. Human-driven industrial activity (e.g., factories, transportation, agricultural burning) and climate change (e.g., larger, more frequent fires) are further exacerbating the problem. If youre able to successfully run the examples at the end (my favourite is the one that powers the little screen with data), then you are almost done! However, I remember distinctly from my childhood an annual phenomenon called The Smog when asthmatics and those with respiratory issues were told to stay indoors. Am I putting the code in the wrong place? If you want it outside, itll need a waterproof case (but include some way for air to get in).

document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); Here at Curiosity Saves the Planet, we hope to inspire your curiosity to learn about our planet and the environment. During lockdown in Germany, I noticed that my apartments air quality was declining, likely because my partner and I were home more often. Think of it as the same way a computer has a hard drive. aio = Client(user,key), while True:

data = []

The next piece of hardware were going to use is the Enviro + Air Quality HAT sensor HAT created by Pimoroni. You can skip most of the guide as we configured almost everything in Part 3, but make sure to review Installing the Enviro+ software as there is an additional step at the end of it. for our project.

We convert these from bytes to integer numbers with the slightly confusing line: pmtwofive = int.from_bytes(b.join(data[2:4]), byteorder=little) / 10. from_byte command takes a string of bytes and converts them into an integer.

[Optional] A case for your Raspberry Pi like the, , which protects it but leaves the header exposed so we can add the HAT, If you dont want a case, I recommend getting four, I used a Pi Zero W Starter Kit for convenience, but note that this kit requires some basic soldering to attach the Pi Zero W board header. See their website for more details: hsmag.cc/DhKaWZ. Make sure its waterproof and aimed downwards so air can still get in, but water cant. 2.1 [If Required] Attach your header to the Raspberry Pi Zero W. I used a Pi Zero W Starter Kit for convenience, but note that this kit requires some basic soldering to attach the Pi Zero W board header. datum = ser.read()

aio.send(AirQuality25pm, pmtwofive) We used kingswoodtwofive and kingswoodten, as the sensor is based in Kingswood.

, as the sensor is based in Kingswood. The easiest method of calibration is to test it against an accurate sensor, and most cities here in the UK have monitoring stations as part of Defras Automatic Urban and Rural Monitoring Network.

HATs have a row of slots to place on top of the Raspberry Pi.

unless you want to, of course. This pollution is linked with respiratory illness, heart disease, and lung cancer.

The beauty of the Raspberry Pi is that it is cheap with a low barrier to entry; if you can use a computer, then you can use a Raspberry Pi.

You should try it, its loads of fun and a great citizen science project. from Adafruit_IO import Client Ive been more concerned about the quality of air in my house recently. Secondly, its been reasonably well studied for accuracy. Were doing great, hope you all are well too Ganesh. I hope Ive convinced you to at least become more interested in the air quality around you. You can use any data platform you like. You can see more details athsmag.cc/DiYPfgand hsmag.cc/Luhisr. You can read this serial connection directly if youre using a controller with a UART, but the sensors also usually come with a USB-to-serial connector, allowing you to plug it into any modern computer and read the data.

I have a soldering iron at home and was keen to dust off my skills, but if youre not comfortable working with solder (its like a mix of hot glue and welding), then I recommend just buying the.

Sounds very interesting. 2. I like the new format. That said, the flow was ~90% the same. File /home/pi/.local/lib/python3.7/site-packages/Adafruit_IO/client.py, line 127, in _post Similarly, clean air is important to our health and wellbeing.

We will use the compact Raspberry Pi Zero W for our project. I discuss both options below.

arduino temperature logger sd computer card data projects iot humidity log using internet things raspberry pi esp8266 Ganesh Shankar is a Curious Animal of the nerdiest kind.

Weve opted to upload it to Adafruit IO, an online service for storing data and making dashboards. Since its early years, the Raspberry Pi has gone through four iterations of the design, resulting in a larger format B model, and a compact Zero model.

I hope you found the same joy from learning a little about the world of electronics and citizen science data collection.

8.

1.1 Visit https://www.raspberrypi.org/software/, 1.2 Install the Raspberry Pi Imager onto your computer, 1.3 Insert your micro SD card into your computer via an SD Card reader, 1.4 Open the Raspberry Pi Imager and click Choose OS. You.

For the last six years, Ive been living in Munich, Germany, where my sensitivity to pollen and smoke has been at its lowest. According to the WHO, air pollution kills an estimated 7 million people every year. There are a variety of particulate sensors on the market. The SDS011 is only rated to work up to 70% humidity. The World Health Organisation air quality guideline stipulates that PM2.5 not exceed 10g/m, 24-hour mean; and that PM10 not exceed 20g/m, Now youve got your monitoring station up and running, how do you know that its running properly?

The Raspberry Pi is a low-cost computing device designed by an open-source foundation looking to promote basic computer science teaching in developing countries.

You might want to choose a more geographically relevant name.

If youre just interested in reading data occasionally, this is a perfectly fine way of using the sensor, but we want a continuous monitoring station and we didnt want to leave our laptop in one place, running all the time. Both the hackAIR and InfluencAir projects have compared the readings from these sensors with more expensive, better-tested sensors, and the results have come back favourably. self._handle_error(response) The Raspberry Pi Foundation makes this super easy. Time to fire up our device and see how it works.

However, its useful for recording outdoor air quality and sending data on the particulate matter to Sensor.community allowing us to measure, A computer to set up and configure the Raspberry Pi, Micro USB Power supply for your Raspberry Pi (an old phone USB charger should do, but you can also get an. Why is air quality important to you whats the quality like where you live? Ive also opened terminal and SSHd to the raspberry pi on my MBP and get the same error. (formerly Luftdaten), a global network of DIY environmental sensors. return Data.from_dict(self._post(path, data._asdict())) Tom's Hardware is part of Future US Inc, an international media group and leading digital publisher.

Unless there is no other option, we would caution against using crowdsourced data for calibration, as these sensors arent themselvescalibrated.

4.

Airing out of your house or apartment can be critical to health. If you look at the Raspberry Pi board, youll see a double-row of pins sticking out from one side. We picked the SDS011 for a couple of reasons. After that, Ill be putting this in a water proof box to measure air quality outside, to give me an idea of how it varies over time.

aio.send(AirQuality10pm, pmten) **Note: When assembling the case, it might be a little challenging to push the Raspberry Pi with its power cable into the pipe, especially if you used the same case and pipe.

Run the installation command after descending into the repository. Air is the very stuff we breathe. Also, hotter and drier weather driven by climate change leads to more frequent and more significant bushfires in summer, another primary air pollution source in Australia. Welcome to the wonderful world of Engineering humour The HATs allow for easy customisation and the magical ability to turn a Raspberry Pi for all sorts of citizen projects. You can now run your sensor with: assuming you called the Python file airquality.py I was thrilled to find this project and share it with you. One thing to be aware of is that Adafruit IO only holds data for 30 days (on the free tier at least). NY 10036. Particulate Matter Sensor added to the Enviro+. 1.6 Select Write and wait until the Raspberry Pi Imager says its done. http://www.airqualityontario.com/aqhi/locations.php.

4.2 Register your sensor on Sensor Community, Use the number on the LCD while running: python luftdaten.py. sensor HAT created by Pimoroni. We set out to monitor our environment to see how concerned we should be about our local air. Standard advice for locating your sensor is that it should be outside and four metres above ground level. Perhaps theres an issue with the sensor, or perhaps theres a problem with the code.

Youll need a free account, which you can sign up for onthe Adafruit IO website youll need to know your Adafruit username and Adafruit IO key in order to run the code below.

Connect the SDS011 sensor to the USB adapter it comes with using the provided jumper cable. Being an asthmatic makes you very aware of the air quality around you, as irritants like pollution, smoke, pollen, and dust can quickly leave you out of breath and possibly even in a life-threatening situation. The World Health Organisation air quality guideline stipulates that PM2.5 not exceed 10g/m3 annual mean, or 25g/m3 24-hour mean; and that PM10 not exceed 20g/m3 annual mean, or 50g/m3 24-hour mean. That said, the flow was ~90% the same. Well use Python 3 for our code, and we need two modules one to read the data from the SDS011 and one to push it to Adafruit IO.

Air pollution kills about 7 million people a year.

As you can see, many factors influence the air quality in your region. 5. So, if you live in any of the other continent It would be super cool if you set one of these up and added your data. What was your favourite part of this project?

Get the whole family involved! Unlike the rest of our project, you can feel free to be creative here.

I followed the Mounting your Enviro+ in the weatherproof housing section of the same Pimoroni Guide as Step 4. These pins allow access to power and input/output control signals from the device itself, making attaching custom hardware to the computer trivial. Thankfully, a few innovations over the past 10 years have lowered the barrier to entry, meaning that its relatively easy to create basic electronics projects and have a lot of fun along the way.

And if youd like to own a handy digital version of the magazine,you can also download a free PDF.

The second phase of our project involves assembling the Raspberry Pi, Enviro + HAT, and case if you have one.

, which will plug and play with our Enviro + board.

We chose Adafruit IO because its easy to use, lets you share visualisations (in the form of dashboards) with others, and connects with IFTTT to perform actions based on values (ours tweets when the air pollution is above legal limits). File /home/pi/.local/lib/python3.7/site-packages/Adafruit_IO/client.py, line 254, in create_data Best!

Most of us know inherently how vital a healthy diet is. Before getting started on the code, we also need to set up a data repository.