Best tools for multimedia reporting Mon, 01 Aug 2016 13:37:30 +0000 en-US hourly 1 https://s0.wp.com/i/webclip.png 32 32 239681374 https://geojournalism.org/2015/09/dustduino-cookbook-recipes-for-configuring-hardware/ Willie Shubert Thu, 10 Sep 2015 20:15:56 +0000 Crowdsourcing Data Data collection DustDuino Sensors https://geojournalism.org/?p=1468 <p>The DustDuino is a customization of Arduino designed to help makers create&#160;low-power, highly customizable sensor projects. By basing the system on Arduino,&#160;the DustDuino can use &#8220;out of the box&#8221; block of code to program the&#160;device to do a number of tasks. Those blocks of code are known as libraries.&#160;For more information and background on Arduino, [&#8230;]</p> <p>The post <a href="https://geojournalism.org/2015/09/dustduino-cookbook-recipes-for-configuring-hardware/">DustDuino Cookbook: Recipes for Configuring Hardware</a> appeared first on <a href="https://geojournalism.org">geojournalism.org</a>.</p> <p>The DustDuino is a customization of Arduino designed to help makers create low-power, highly customizable sensor projects. By basing the system on Arduino, the DustDuino can use “out of the box” block of code to program the device to do a number of tasks. Those blocks of code are known as libraries. For more information and background on Arduino, visit the free <a href="https://www.arduino.%20cc/en/Guide/Introduction" target="_blank">Intro to Arduino</a> guide.</p> <p>The first step in preparing the DustDuino is to download the Arduino IDE on to your computer. IDE stands for “Integrated Development Environment.” This is the software needed to directly program the board. You can <a href="https://www.arduino.cc/en/Main/Software" target="_blank">download the latest version of the Arduino IDE</a> for your operating system.</p> <p>The DustDuino currently supports 3 different configurations for sending and/or storing the data generated by the dust sensor.  All of the custom code needed to process, transmit, and store particulate matter data is available for download on the <a href="https://www.arduino.cc/en/Main/Software" target="_blank">DustDuino website</a> ,the <a href="https://github.com/opendustmap" target="_blank">OpenDustMap GitHub</a> repository, or from this tutorial.</p> <p>These programs are referred to as a “sketches,” and each configuration recipe listed below corresponds to a sketch available to download and install on your DustDuino. Sketches that are built inside the Arduino IDE may be saved with the “.ino” file extension.</p> <h2 class="summary-item" id="read-dust-levels-directly-on-your-computer"><a href="#read-dust-levels-directly-on-your-computer">Read dust levels directly on your computer</a></h2> <p><a href="https://geojournalism.org/wp-content/uploads/2015/09/IMG_1248.jpg"><img alt="DustDuino Serial_Hello World" class="alignnone size-large wp-image-1489" decoding="async" fetchpriority="high" height="575" sizes="(max-width: 1024px) 100vw, 1024px" src="https://geojournalism.org/wp-content/uploads/2015/09/IMG_1248-1024x575.jpg" srcset="https://geojournalism.org/wp-content/uploads/2015/09/IMG_1248-1024x575.jpg 1024w, https://geojournalism.org/wp-content/uploads/2015/09/IMG_1248-300x168.jpg 300w" width="1024"/></a></p> <p>Making sure that your DustDuino and the dust sensor are communicating properly is an important first step before setting setting up other configurations. The DustDuino board comes pre-loaded with the following sketch so you only need to programming the following steps if you’re using another Arduino compatible board.</p> <a class="small-button smallblue" href="https://github.com/dustduino/dustduinoserial" target="_blank">Download DUSTDUINO Serial Sketch</a> <ol> <li>Attach UartSBee programmer to DustDuino</li> <li>Attach UartSBee to computer using USB cable</li> <li>Open the Arduino IDE</li> <li>Find and select the correct serial port where your DustDuino and UartSBee<br/> are connected</li> <li>Open the DustDuinoSerial sketch in the Arduino IDE</li> <li>Compile the DustDuinoSerial sketch and upload to the DustDuino</li> <li>Open the serial monitor to watch the output from the DustDuino</li> </ol> <p>To visualize data copy your dust readings and paste into a spreadsheet program, such as Microsoft Excel or Google Sheets, to save and graph your dust readings.</p> <h2 class="summary-item" id="log-dustduino-readings-on-an-sd-card"><a href="#log-dustduino-readings-on-an-sd-card">Log DustDuino readings on an SD card</a></h2> <p> </p> <a class="small-button smallblue" href="https://github.com/dustduino/DustDuinoSD" target="_blank">Download DUSTDUINO SD Card Sketch</a> <ol> <li>Attach UartSBee programmer to DustDuino</li> <li>Attach UartSBee to computer using USB cable</li> <li>Program DustDuino with the SD card sketch using the UartSBee</li> <li>Attach SD card shield</li> <li>Attach dust sensor</li> <li>Insert SD card</li> <li>Power with 5 volts</li> </ol> <h2 class="summary-item" id="transmit-dustduino-readings-over-the-internet-wirelessly"><a href="#transmit-dustduino-readings-over-the-internet-wirelessly"> Transmit DustDuino readings over the internet wirelessly</a></h2> <p>The DustDuino can be configured to connect with wireless networks, so that it can send data to remote servers, which can then store and visualize the data.</p> <p>To use the DustDuino to connect and transmit data over a wireless network using, some setup of the wireless module is required.  The advantage is the DustDuino can be set up and as long as the network remains the same, it will stay connected. The Xbee wireless module, not the DustDuino microcontroller chip, does the vast majority of the work when it comes to connecting to networks and sending data.</p> <h2 class="summary-item" id="set-up-a-wi-fi-connected-dustduino"><a href="#set-up-a-wi-fi-connected-dustduino">Set up a Wi-Fi Connected DustDuino</a></h2> <p><a href="https://geojournalism.org/wp-content/uploads/2015/09/DSC_0345.jpg"><img alt="Programmer + WifiBee" class="alignnone size-large wp-image-1491" decoding="async" height="678" sizes="(max-width: 1024px) 100vw, 1024px" src="https://geojournalism.org/wp-content/uploads/2015/09/DSC_0345-1024x678.jpg" srcset="https://geojournalism.org/wp-content/uploads/2015/09/DSC_0345-1024x678.jpg 1024w, https://geojournalism.org/wp-content/uploads/2015/09/DSC_0345-300x199.jpg 300w" width="1024"/></a></p> <a class="small-button smallblue" href="https://github.com/dustduino/" target="_blank">Download DUSTDUINO WiFi Sketch</a> <ol> <li>Make sure the UartSBee is in both programmer mode and is set to provide 5 volts</li> <li>Attach the RN-XV to the UartSBee programmer, and connect the UartSBee <div class="wp-caption alignright" id="attachment_1492" style="width: 160px"><img alt="5V_Programmer UartSBee" aria-describedby="caption-attachment-1492" class="wp-image-1492 size-thumbnail" decoding="async" height="150" sizes="(max-width: 150px) 100vw, 150px" src="https://geojournalism.org/wp-content/uploads/2015/09/IMG_1236-150x150.jpg" srcset="https://geojournalism.org/wp-content/uploads/2015/09/IMG_1236-150x150.jpg 150w, https://geojournalism.org/wp-content/uploads/2015/09/IMG_1236-260x260.jpg 260w" width="150"/><p class="wp-caption-text" id="caption-attachment-1492">The switches are at the bottom of the UartSBee.</p></div> <p>programmer to your computer using a USB cable.</p></li> <li>Launch the Arduino IDE, and locate the correct serial port.</li> <li>Once the correct serial port is designated, open the serial monitor.</li> <li>Select “no line ending” in the serial monitor</li> <li>Enter “$$$”</li> <li>RN-XV will respond with “CMD”</li> <li>Change serial monitor to “carriage return”</li> <li>Send “set wlan ssid &lt;id&gt;” (when entering your network’s ID here, substitute<br/> any spaces with the character “$”)</li> <li>Send “set wlan phrase &lt;phrase&gt;”</li> <li>Send “save”</li> <li>Send “reboot”</li> </ol> <p>The RN-XV should return something like the following:</p> <div class="et-box et-info"> <div class="et-box-content">*Reboot*WiFly Ver 2.38, 12-11-2012 on RN-171 MAC Addr=##:##:##:##:##:## Auto-Assoc ssid chan=5 mode=WPA2 SCAN OK Joining ssid now.. *READY* Associated! DHCP: Start DHCP in 3195ms, lease=86400s IF=UP DHCP=ON IP=###.###.#.##:#### NM=###.###.###.# GW=###.###.#.### Listen on ####</div></div> <p>If the red LED on your RN-XV disappears after the reboot, congratulations! You’ve connected to the network. Now, time to load the actual sketch for your sensor node or what have you:</p> <ol> <li>Exit the Arduino IDE</li> <li>Unplug your UartSBee from the computer</li> <li>Detach the WiFi module from the UartSbee</li> <li>Program the DustDuino board separately by installing the WiFi DustDuino<br/> sketch</li> <li>Attach the the WiFi module and dust sensor to the DustDuino board</li> <li>Plug DustDuino into 5V power source</li> <li>Enjoy!</li> </ol> <div class="et-box et-info"> <div class="et-box-content">because you are sending your DustDuino data to a server that will store your unique information, you need to make sure that the DustDuino is sending the right identifying information and credentials. Only you will know this identifing information, and the DustDuino sketches provided online do not contain your specific credentials. Therefore your DustDuinoWiFly sketch will need to be edited inside the Arduino IDE to include your unique information, such as a Feed ID, API Key, server address, and/or Arduino Key. See the README.md documentation or the comments inside the sketch for information on how to include your credentials in the sketch.</div></div> <meta content="text/html; charset=utf-8" http-equiv="Content-Type"/> <p>The post <a href="https://geojournalism.org/2015/09/dustduino-cookbook-recipes-for-configuring-hardware/">DustDuino Cookbook: Recipes for Configuring Hardware</a> appeared first on <a href="https://geojournalism.org">geojournalism.org</a>.</p> 1468 https://geojournalism.org/2014/04/dustduino-arduino-uno-edition/ Matthew Schroyer Mon, 07 Apr 2014 20:18:05 +0000 Crowdsourcing Data Mobile Data collection environmental data Open Hardware Particulate Matter Sensors https://geojournalism.oeco.org.br/?p=1025 <p>Why Focus on Particulate Matter? The World Health Organization (WHO) took a major step by announcing that air pollution is carcinogenic to humans.WHO also announced they are considering particulate matter, a major component of indoor and outdoor air pollution, as carcinogenic to humans as well. International Agency for Research on Cancer announced today: outdoor&#160;#airpollution&#160;is leading [&#8230;]</p> <p>The post <a href="https://geojournalism.org/2014/04/dustduino-arduino-uno-edition/">DIY air pollution monitoring with DustDuino: Arduino Uno Edition</a> appeared first on <a href="https://geojournalism.org">geojournalism.org</a>.</p> <h1 class="summary-item" id="why-focus-on-particulate-matter"><a href="#why-focus-on-particulate-matter">Why Focus on Particulate Matter?</a></h1> <p>The World Health Organization (WHO) took a major step by announcing that air pollution is carcinogenic to humans.WHO also announced they are considering particulate matter, a major component of indoor and outdoor air pollution, as carcinogenic to humans as well.</p> <p style="padding-left: 60px;">International Agency for Research on Cancer announced today: outdoor <a href="https://twitter.com/search?q=%23airpollution&amp;src=hash">#airpollution</a> is leading environmental cause of <a href="https://twitter.com/search?q=%23cancer&amp;src=hash">#cancer</a> deaths</p> <p style="padding-left: 60px;">— WHO (@WHO) <a href="https://twitter.com/WHO/statuses/390771647461859328">October 17, 2013</a></p> <p>The <a href="https://www.iarc.fr/">International Agency for Research on Cancer</a> (IARC), a special unit inside WHO tasked with promoting international collaborations on cancer research, reached that conclusion after reviewing more than 1000 scientific papers on the carcinogenicity of air pollutants.</p> <p>Air pollution and particulate matter will be included in IARC’s Monograph, which is an encyclopedia of known carcinogens. Particulate matter will be classified as a Group 1 carcinogen, along with tobacco smoke and asbestos. In an IARC press release, the Deputy Head of the Monographs Programme, Dr. Dana Loomis, said that the group’s goal was to “evaluate the air everyone breathes rather than focus on specific air pollutants.”</p> <p>“The results from the reviewed studies point in the same direction: the risk of developing lung cancer is significantly increased in people exposed to air pollution,” he said. This finding elevates the urgency to clean up the air, both outdoors and indoors. But how does one find out the condition of the air in the first place? How healthy is your air?</p> <p><a name="more"></a>Finding that answer can be difficult and expensive. Most Environmental Protection Agency-quality particulate matter monitors send air through a filter, which must be precisely weighed, and produce only one reading a day. Other EPA monitors that sample continuously cost more than <a href="https://wireless.ece.drexel.edu/research/sd_air_quality.pdf">$14,000 each to deploy</a>.</p> <p>Mass concentration is the norm for quantifying airborne particulate matter worldwide, and is usually expressed in micrograms of particulates per cubic meter of air (μg/m3). However, there are an increasing number of affordable particulate sensors coming on the market which rely instead on lasers and LEDs to count the number of particles instead.</p> <p>For <a href="https://www.mentalmunition.com/2013/09/understanding-air-pollution-with-simple.html">more background</a> on the specifics of particulate matter sensing, <a href="https://www.mentalmunition.com/2013/05/dustduino-plan-to-crowdsource.html">please refer</a> to earlier work on Mental Munition regarding particle counting sensors. This post will focus on hacking together your own <a href="https://www.mentalmunition.com/2013/05/dustduino-plan-to-crowdsource.html">DustDuino</a> prototype, which will allow you to monitor dust levels in your home (or back yard) from anywhere you have internet access, for about $100.</p> <p>What will the end product look like, online? <a href="https://xively.com/feeds/499600824">It will look a little like this (my own live DustDuino feed).</a></p> <h1 class="summary-item" id="required-materials"><a href="#required-materials">Required Materials</a></h1> <p>To make a DustDuino, you will need:</p> <div><a href="https://2.bp.blogspot.com/-4VxDLuDJfP8/UmCoqUufsLI/AAAAAAAABzE/03lt24VK5H4/s1600/DustDuino+guts.jpg"><img alt="" border="0" decoding="async" height="215" loading="lazy" src="https://2.bp.blogspot.com/-4VxDLuDJfP8/UmCoqUufsLI/AAAAAAAABzE/03lt24VK5H4/s640/DustDuino+guts.jpg" style="border: 0px;" width="384"/></a></div> <p>1) A WiFi network in your home<br/> 2) <a href="https://www.sparkfun.com/products/11021">Arduino Uno development board</a><br/> 3) <a href="https://www.mouser.com/ProductDetail/Arduino/A000064/?qs=Cvel0QnFNSJK4W8LtutgWg%3D%3D&amp;gclid=CLvD8cGAn7oCFeYWMgodYEEAtA">Arduino Wireless Proto Shield</a><br/> 4) <a href="https://www.seeedstudio.com/depot/grove-dust-sensor-p-1050.html">Shinyei PPD-42 Dust Sensor </a><br/> 5) <a href="https://www.sparkfun.com/products/10822">Sparkfun Roving Networks RN-XV WiFi module</a><br/> 6) <a href="https://www.seeedstudio.com/depot/typeb-usb-cable-for-arduino-diecimila-and-freeduino-p-130.html?cPath=98_100">USB type B cable</a> (for programming the Arduino)<br/> 7) <a href="https://www.seeedstudio.com/depot/wall-adapter-power-supply-9vdc-1a-p-1509.html?cPath=1_4">9V DC power supply</a> (or a 5V USB cell phone charger along with your USB-B cable)<br/> 8) <a href="https://www.sparkfun.com/products/11367">22AWG solid core hookup wire</a> (M/M jumper wires can be used in a pinch)<br/> 9) Soldering equipment (soldering iron, solder, and soldering paste)<br/> 10) Arduino sketch from the <a href="https://github.com/NodeJournalism/DustDuino">DustDuino GitHub repository</a> (<a href="https://github.com/NodeJournalism/DustDuino/archive/master.zip">zipped repo</a> also contains background literature on the PPD-42, mass concentration algorithms, and the DustDuino logo).</p> <h2 class="summary-item" id="step-1-program-the-wifi-module"><a href="#step-1-program-the-wifi-module">Step 1: Program the WiFi module</a></h2> <div><a href="https://2.bp.blogspot.com/-vOlrwmM9lwE/UQ6lUWp4pAI/AAAAAAAAAvQ/4WUGJ2uioMM/s1600/RNXV_PIC.jpg"><img alt="" border="0" decoding="async" height="215" loading="lazy" src="https://2.bp.blogspot.com/-vOlrwmM9lwE/UQ6lUWp4pAI/AAAAAAAAAvQ/4WUGJ2uioMM/s640/RNXV_PIC.jpg" style="border: 0px;" width="384"/></a></div> <p>For the DustDuino to transmit any data, it needs to be connected to your home WiFi network. <a href="https://www.mentalmunition.com/2013/06/step-by-step-guide-to-programming-rn-xv.html">Consult my post on programming the RN-XV for details</a>.</p> <p>Like the Arduino Uno, which serves as the DustDuino’s “brain,” the RN-XV will be on constantly. The RN-XV is set up to connect to your home’s WiFi network as soon as power is connected, and it will remain connected so long as there is power.</p> <h2 class="summary-item" id="step-2-hook-up-the-shinyei-ppd-42-particulate-sensor"><a href="#step-2-hook-up-the-shinyei-ppd-42-particulate-sensor">Step 2: Hook up the Shinyei PPD-42 particulate sensor</a></h2> <div><a href="https://4.bp.blogspot.com/-iyoKpH_NNzA/UmCm11WKsHI/AAAAAAAABy0/SAm5evZGfVQ/s1600/PPD42+connector.jpg"><img alt="" border="0" decoding="async" height="215" loading="lazy" src="https://4.bp.blogspot.com/-iyoKpH_NNzA/UmCm11WKsHI/AAAAAAAABy0/SAm5evZGfVQ/s640/PPD42+connector.jpg" style="border: 0px;" width="384"/></a></div> <p>When you order the Shinyei sensor, it will come packaged with a connector to interface with the <a href="https://www.seeedstudio.com/depot/base-shield-v13-p-1378.html?cPath=132_134">Seeedstudio Grove Shield</a>. Instead of purchasing a whole new shield just to attach a single sensor, I recommend simply sticking either jumper wires, or stripped 22AWG solid core wire into the end of the Grove connector.</p> <p>The black wire on the Grove cable corresponds to ground, so that wire should be connected to GND on the Arduino Wireless Shield. The red wire on the Grove cable will be connected to 5V on the Wireless Shield, while the remaining white wire will be plugged into the digital “8” pin on the Shield.</p> <div><a href="https://3.bp.blogspot.com/-V66NnhE8Y1A/UmCngtjIpCI/AAAAAAAABy8/AtYVdVgDVD8/s1600/PPD42+solder+P2.jpg"><img alt="" border="0" decoding="async" height="215" loading="lazy" src="https://3.bp.blogspot.com/-V66NnhE8Y1A/UmCngtjIpCI/AAAAAAAABy8/AtYVdVgDVD8/s640/PPD42+solder+P2.jpg" style="border: 0px;" width="384"/></a></div> <p>There’s another issue with using the included Grove connector: it doesn’t make use of all the sensor’s available channels. The included connector will only make use of the Shinyei’s P1 channel, which is for counting particles between 1 and 10 microns. But the PPD-42 also has a P2 channel, which counts particles between 2.5 and 10 microns.</p> <p>By measuring both P1 and P2 channels, it’s possible for the DustDuino to differentiate between the PM2.5 and PM10, which are the two major ranges of particles recognized by the EPA and similar agencies. The smaller particulates that measure 2.5 microns and under are of special concern, since those have the potential to enter the blood stream and<a href="https://www.epa.gov/air/urbanair/"> cause the most harm</a>.</p> <p>To measure the P2 channel, strip a solid core 22AWG wire and solder the end of the wire to the second pin on the PPD-42. This is the pin located between GND and 5V. It might be a good idea to use a little hot glue to insulate the connection and provide a little strength.</p> <p>Your new P2 channel will be connected to the digital “9” pin on the Wireless Shield.</p> <h2 class="summary-item" id="step-3-set-up-a-xively-account"><a href="#step-3-set-up-a-xively-account">Step 3: Set up a Xively account</a></h2> <div><a href="https://1.bp.blogspot.com/-eYhwnKz5Le0/UmF-2p8u6-I/AAAAAAAABzw/VNvtQPSwIh0/s1600/xively1.jpg"><img alt="" border="0" decoding="async" height="240" loading="lazy" src="https://1.bp.blogspot.com/-eYhwnKz5Le0/UmF-2p8u6-I/AAAAAAAABzw/VNvtQPSwIh0/s640/xively1.jpg" style="border: 0px;" width="384"/></a></div> <p>All that data being produced by the DustDuino will have to go somewhere, and it might as well go somewhere you can easily access. Xively is a service that <a href="https://xively.com/whats_xively/">markets itself</a> as a “public cloud specifically for the internet of things,” which allows you to view your sensor data from home computer, tablet, or smartphone.</p> <p>That service can get quite expensive, but you can <a href="https://xively.com/signup/">sign up for a free developer account</a>, which can store up to 30 channels of data across five devices (a channel is a single stream of data — like temperature, or humidity, or PM2.5 or PM10). With a free Xively account, any data older than 30 days will be deleted.</p> <p>Xively can walk you through the process of <a href="https://xively.com/dev/tutorials/xively/">setting up an account</a>, but there are some specific things you’ll need to do to make sure it’s set up to receive DustDuino data.</p> <p>You will need to create a device with four channels, named:</p> <ul> <li>PM10</li> <li>PM10count</li> <li>PM25</li> <li>PM25count</li> </ul> <p>PM10count and PM25count channels will store the number of PM10 and PM2.5 particles counted by the Shinyei PPD-42 sensor, while PM10 and PM25 channels will store mass concentration as calculated by the DustDuino code.</p> <p>Record the Feed ID for this device, which you’ll need to insert into the Arduino code later. Also save the name of the device, which you’ll also need for the Arduino code.</p> <p>The last thing you’ll need to do here is to create an API key which will give your DustDuino permission to store data on your Xively account. Every time the DustDuino sends data to Xively, it needs send along this unique key. To make a new API key, or find an existing key, go to “settings,” and then click “Master Keys.”</p> <p>Copy and paste this API key somewhere easy to find, as you’ll need to manually insert it into the Arduino code in our next step.</p> <h2 class="summary-item" id="step-4-code-the-arduino"><a href="#step-4-code-the-arduino">Step 4: Code the Arduino</a></h2> <p>The Arduino is fairly capable “out of the box,” but for more complicated tasks like getting the RN-XV to connect to the Xively server, it’s helpful to have blocks of code already written out. Those blocks of code are known as <a href="https://arduino.cc/en/Reference/Libraries">libraries</a>.</p> <p>Fortunately there’s only one library you’ll need for the DustDuino, and that’s the <a href="https://github.com/harlequin-tech/WiFlyHQ">WiFlyHQ library</a>. The Arduino website has instructions on how to <a href="https://arduino.cc/en/Guide/Libraries">install Arduino libraries</a>.</p> <p>After installing the WiFlyHQ library, open up the DustDuino.ino file in the Arduino IDE. Find the #define APIKEYcode and replace the hash signs with your API Key.</p> <p>Find the very next line, which begins #define FEEDID, and replace the hash signs with the Feed ID.</p> <p>Finally, in the very next line, which begins #define USERAGENT, replace the hash signs with the device name.</p> <p>Save the sketch, and with the Wireless Shield detached from the Arduino Uno, upload the sketch to the Arduino. After the sketch is uploaded, you may re-connect the Wireless Shield. Make sure the switch on the Wireless Shield is set to “Micro” before connecting your DustDuino to a power source.</p> <p>You have several options for powering your DustDuino. You can purchase a separate “wall wart” style 9-volt DC adapter for the Arduino, or you can run power through the Arduino Uno’s USB-B port.</p> <p>If you do decide to supply power through the USB-B port, you may do so with a universal cell charging adapter that has a female USB connector. Most of these chargers supply 5 volts, but just to be sure, make sure to read any text on your cell charger. Another easy way to power the Arduino Uno is to keep it plugged in to your computer’s USB port, but you have to keep your computer powered at all times.</p> <h2 class="summary-item" id="step-5-keep-everything-together"><a href="#step-5-keep-everything-together">Step 5: Keep everything together</a></h2> <div><a href="https://2.bp.blogspot.com/-ePbhNS-BMe4/UmCpWWtqESI/AAAAAAAABzQ/Av7xqDICOV0/s1600/DustDuino+unboxed.jpg"><img alt="" border="0" decoding="async" height="358" loading="lazy" src="https://2.bp.blogspot.com/-ePbhNS-BMe4/UmCpWWtqESI/AAAAAAAABzQ/Av7xqDICOV0/s640/DustDuino+unboxed.jpg" width="640"/></a></div> <p>The Shinyei PPD-42 must be placed upright to work correctly. In other words, it must be placed on a vertical surface, with the connector must be pointing down, and the chrome part of the sensor pointing up.</p> <p>This placement is important to drive air into the sensor. Inside the sensor chamber, at the bottom, is a resistor that heats up when power is connected. With this resistor, the sensor creates a warm updraft of air, which is meant to circulate dust inside the chamber.</p> <p>According to an email from Shinyei customer service, the sensor doesn’t need any kind of fan to blow air inside the sensor chamber. But the chamber must be open to the air you wish to sense.</p> <p>The container doesn’t have to be elaborate. One solution is to secure the sensor to the side of a cardboard box with a pushpin (the sensor has a convenient hole at the top of its circuit board for this kind of thing). If you have a cork board or other board that can be stuck with pins, you also can mount your sensor on a wall.</p> <div><a href="https://2.bp.blogspot.com/-xWLes9mtr2I/UmCsyJYz7eI/AAAAAAAABzY/FFZlGrbmGnM/s1600/dustduino+proto+2+on+wall.jpg"><img alt="" border="0" decoding="async" height="640" loading="lazy" src="https://2.bp.blogspot.com/-xWLes9mtr2I/UmCsyJYz7eI/AAAAAAAABzY/FFZlGrbmGnM/s640/dustduino+proto+2+on+wall.jpg" width="480"/></a></div> <p>At the beginning of this post is a picture of a work in progress: an acrylic cube in which to store the DustDuino. The sides of this cube were cut from an 1/8th inch acrylic sheet using a 50-watt CO2 Epilog laser engraver at the <a href="https://cucfablab.org/">CU Community Fab Lab</a>. The design is not yet perfected, but when finished, the pattern will be made available as a PDF for download.</p> <p>Please note that if you intend to deploy this sensor in your backyard, you will need to make a waterproof housing that still allows the sensor to sample air. You must also ensure the power source to your DIY housing is waterproof, as well. Like the indoor acrylic housing, this is a work in progress.</p> <h2 class="summary-item" id="one-last-word-about-this-prototype"><a href="#one-last-word-about-this-prototype">One last word about this prototype</a></h2> <div><a href="https://1.bp.blogspot.com/-Aav6lLpRvGQ/UmF9eGri4XI/AAAAAAAABzo/STmOFct3W-Y/s1600/dustduino+logo.jpg"><img alt="" border="0" decoding="async" height="230" loading="lazy" src="https://1.bp.blogspot.com/-Aav6lLpRvGQ/UmF9eGri4XI/AAAAAAAABzo/STmOFct3W-Y/s640/dustduino+logo.jpg" style="border: 0px;" width="230"/></a></div> <p>The DustDuino is a work in progress. I cannot make any guarantees as to whether your particular project will work. Having said that, this device has worked great for me so far. So given my personal success, and the recent WHO and IARC findings about particulate matter being carcinogenic, I felt it was time to release instructions and code into the wild.</p> <p>If you put together a DustDuino have it working correctly, or have any suggestions, feel free to drop me a line at mschroyer@gmail.com.</p> <p>Also, if this device has proven useful for you, please consider donating to MentalMunition.com. Funds will go to develop ready-to-deploy DustDuino devices.</p> <div class="author-shortcodes"> <div class="author-inner"> <div class="author-image"> <img alt="" src="https://cucfablab.org/sites/cucfablab.org/files/images/MattSchroyer.jpg"/> <div class="author-overlay"></div> </div> <!-- .author-image --> <div class="author-info"> Matthew Schroyer is a drone and data journalist based in Urbana, Illinois. He is developing drone technology and small Unmanned Aerial Vehicles (sUAV) for use in journalistic enterprises. To this end, he has founded the Professional Society of Drone Journalists (PSDJ), located at DroneJournalism.org. </div> <!-- .author-info --> </div> <!-- .author-inner --> </div> .author-shortcodes <meta content="text/html; charset=utf-8" http-equiv="Content-Type"/> <p>The post <a href="https://geojournalism.org/2014/04/dustduino-arduino-uno-edition/">DIY air pollution monitoring with DustDuino: Arduino Uno Edition</a> appeared first on <a href="https://geojournalism.org">geojournalism.org</a>.</p> 1025 https://geojournalism.org/2013/10/field-papers-how-to-make-digital-maps-with-a-pen-and-paper/ Emir Hartato Sun, 20 Oct 2013 17:36:05 +0000 Crowdsourcing Data Data collection Easy Hand Drawn Low-tech https://geojournalism.oeco.org.br/?p=747 <p>What are Field Papers? As this set of tutorials demonstrates, there are many ways to collect data for use in mapping. For most circumstances a smartphone or a GPS unit will provide connectivity in even the remotest of places but each has its limits. This is where field papers can fill the gaps. Using simple [&#8230;]</p> <p>The post <a href="https://geojournalism.org/2013/10/field-papers-how-to-make-digital-maps-with-a-pen-and-paper/">Field Papers: Make Digital maps with a Pen and Paper</a> appeared first on <a href="https://geojournalism.org">geojournalism.org</a>.</p> <h1 class="summary-item" id="what-are-field-papers"><a href="#what-are-field-papers">What are Field Papers?</a></h1> <p>As this set of tutorials demonstrates, there are many ways to collect data for use in mapping. For most circumstances a smartphone or a GPS unit will provide connectivity in even the remotest of places but each has its limits. This is where field papers can fill the gaps. Using simple pen and paper, you can quickly draw points, lines, and polygons then upload them to a digital format by simply taking a picture of your drawing.</p> <p><a href="https://fieldpapers.org/" target="_blank">Field Papers</a>, which was created by <a href="https://stamen.com/" target="_blank">Stamen Design</a> and is the update of a tool called <a href="https://walking-papers.org/" target="_blank">Walking Papers</a>, allows us to print a map of a selected area, draw on it, add notes to it, and then open it in an OpenStreetMap editor like iD to digitize the drawing.</p> <h1 class="summary-item" id="how-do-field-papers-work"><a href="#how-do-field-papers-work">How do Field Papers Work</a></h1> <p><a href="https://geojournalism.org/wp-content/uploads/2013/10/QR_Code.png"><img alt="QR_Code" class="wp-image-783 alignleft" decoding="async" height="71" loading="lazy" src="https://geojournalism.org/wp-content/uploads/2013/10/QR_Code.png" width="73"/></a>When you print a Field Paper, the paper comes with a square QR code on the bottom of the page.  This bar code allows Field Papers to determine the exact location of the map that you are using to survey.  Later, when you load the paper back into JOSM, all the objects that you drew will be in shown in their actual locations, or at least quite close, which is good enough for us.</p> <h1 class="summary-item" id="using-field-papers"><a href="#using-field-papers">Using Field Papers</a></h1> <p><b style="font-size: 1.5em;">Create your paper atlas:</b></p> <p>Locate the area you want to map on the Field Papers website.  Print out a map of this area.  You can choose to print the current map of the area with OpenStreetMap, or you can choose to print aerial imagery, if it is available in your area.</p> <ul> <li>Open your web browser – this may be Firefox, Chrome, Opera, or Internet Explorer.</li> <li>In the address bar at the top of the window, enter the following text and press Enter: <a href="https://walkingpapers.hotosm.org/">https://fieldpapers.org/</a></li> <li>The website should look something like this:</li> </ul> <p style="text-align: center;"><a href="https://fieldpapers.org/" target="_blank"><img alt="Field_Papers_Welcome_Page" class="wp-image-785 aligncenter" decoding="async" height="410" loading="lazy" sizes="auto, (max-width: 595px) 100vw, 595px" src="https://geojournalism.org/wp-content/uploads/2013/10/Field_Papers_Welcome_Page.png" srcset="https://geojournalism.org/wp-content/uploads/2013/10/Field_Papers_Welcome_Page.png 991w, https://geojournalism.org/wp-content/uploads/2013/10/Field_Papers_Welcome_Page-300x206.png 300w" width="595"/></a></p> <ul> <ul> <ul> <li>Click on “Make yourself an Atlas.”</li> </ul> <ul> <li>Enter a place where you would like to print out a map, and press Enter.  Here we will search for “Jakarta.”</li> </ul> </ul> </ul> <p style="text-align: center;"><a href="https://fieldpapers.org/make-step1-search.php" target="_blank"><img alt="Location_Box_Field_Papers" class="wp-image-772 aligncenter" decoding="async" height="405" loading="lazy" sizes="auto, (max-width: 785px) 100vw, 785px" src="https://geojournalism.org/wp-content/uploads/2013/10/Location_Box_Field_Papers.png" srcset="https://geojournalism.org/wp-content/uploads/2013/10/Location_Box_Field_Papers.png 981w, https://geojournalism.org/wp-content/uploads/2013/10/Location_Box_Field_Papers-300x154.png 300w" width="785"/></a></p> <ul> <ul> <ul> <li>Now you are presented with an interface where you can define the boundaries of your Field Papers.  The map that you see shows the area that you would like to print on paper.  You can print multiple pages, zoom in and out, and drag the papers to cover specific boundaries on the map.</li> </ul> </ul> </ul> <p style="text-align: center;"><a href="https://fieldpapers.org/make-step2-geography.php?zoom=12&amp;lat=-6.17149&amp;lon=106.82753" target="_blank"><img alt="Field_Papers_Jakarta" class="wp-image-771 aligncenter" decoding="async" height="298" loading="lazy" sizes="auto, (max-width: 614px) 100vw, 614px" src="https://geojournalism.org/wp-content/uploads/2013/10/Field_Papers_Jakarta-1024x497.png" srcset="https://geojournalism.org/wp-content/uploads/2013/10/Field_Papers_Jakarta-1024x497.png 1024w, https://geojournalism.org/wp-content/uploads/2013/10/Field_Papers_Jakarta-300x145.png 300w, https://geojournalism.org/wp-content/uploads/2013/10/Field_Papers_Jakarta.png 1919w" width="614"/></a></p> <div class="et-box et-info"> <div class="et-box-content"><p><b>HINT: Zoom In!</b></p> <p>Field Papers work best when you are at a very local (high-zoom) level. Since the details in the map are much greater at the local level you can create more accurate drawings. If you print out a page with most of the city in it, you can really only make general features.</p></div></div> <p></p><p><b style="font-size: 1.5em;">Customizing the printed atlas using the following buttons:</b></p> <p>The box below is what you will use to determine the size of your atlas including the number of pages and what map features will be printed on each page. Click on the various buttons to see what each does</p> <p style="text-align: center;"><a href="https://geojournalism.org/wp-content/uploads/2013/10/Page_Maker_Boxes.png"><img alt="Page_Maker_Boxes" class="size-full wp-image-781 aligncenter" decoding="async" height="366" loading="lazy" sizes="auto, (max-width: 523px) 100vw, 523px" src="https://geojournalism.org/wp-content/uploads/2013/10/Page_Maker_Boxes.png" srcset="https://geojournalism.org/wp-content/uploads/2013/10/Page_Maker_Boxes.png 523w, https://geojournalism.org/wp-content/uploads/2013/10/Page_Maker_Boxes-300x209.png 300w" width="523"/></a></p> <p><b><a href="https://geojournalism.org/wp-content/uploads/2013/10/AddSub_Pages.png"><img alt="AddSub_Pages" class="alignnone wp-image-773" decoding="async" height="39" loading="lazy" src="https://geojournalism.org/wp-content/uploads/2013/10/AddSub_Pages.png" width="59"/></a></b>.  To add or subtract a page, we can click on the + and – buttons on the map.</p> <p><a href="https://geojournalism.org/wp-content/uploads/2013/10/Expand_Box_UI.png"><img alt="Expand_Box_UI" class="alignnone size-full wp-image-774" decoding="async" height="50" loading="lazy" src="https://geojournalism.org/wp-content/uploads/2013/10/Expand_Box_UI.png" width="50"/></a> Expand or decrease the area of the papers by dragging the button in the lower right corner.</p> <p><a href="https://geojournalism.org/wp-content/uploads/2013/10/Move_Pages_Field_Papers.png"><img alt="Move_Pages_Field_Papers" class="alignnone size-full wp-image-775" decoding="async" height="50" loading="lazy" src="https://geojournalism.org/wp-content/uploads/2013/10/Move_Pages_Field_Papers.png" width="50"/></a>You can move the paper by clicking and dragging the button in the upper left corner.</p> <p>You can adjust the paper orientation and type of map using the controls at the top. If you are in an area without much OpenStreetMap data, consider choosing the satellite imagery</p> <p style="text-align: center;"><a href="https://geojournalism.org/wp-content/uploads/2013/10/Top_Bar_Selections.png"><img alt="Top_Bar_Selections" class="size-full wp-image-776 aligncenter" decoding="async" height="54" loading="lazy" sizes="auto, (max-width: 587px) 100vw, 587px" src="https://geojournalism.org/wp-content/uploads/2013/10/Top_Bar_Selections.png" srcset="https://geojournalism.org/wp-content/uploads/2013/10/Top_Bar_Selections.png 587w, https://geojournalism.org/wp-content/uploads/2013/10/Top_Bar_Selections-300x27.png 300w" width="587"/></a></p> <ul> <ul> <ul> <li>When you’re finished, click “Next.”</li> </ul> <ul> <li>Now you can give your map a name, and if you want, you can add notes to be printed on the map, such as questions you want to remember to answer or specific places you want to identify.  After you fill out the form, again click “Next.”</li> </ul> <ul> <li>Finally choose your layout.  You can indicate whether you want pages only for your maps, or if you want notes on the same page.  If you choose the notes option, then half of your page will be left for taking notes, and the other half will contain your map.</li> </ul> </ul> </ul> <p style="text-align: center;"><a href="https://geojournalism.org/wp-content/uploads/2013/10/Layout_Selection.png"><img alt="Layout_Selection" class="wp-image-777 aligncenter" decoding="async" height="415" loading="lazy" sizes="auto, (max-width: 571px) 100vw, 571px" src="https://geojournalism.org/wp-content/uploads/2013/10/Layout_Selection.png" srcset="https://geojournalism.org/wp-content/uploads/2013/10/Layout_Selection.png 952w, https://geojournalism.org/wp-content/uploads/2013/10/Layout_Selection-300x217.png 300w" width="571"/></a></p> <ul> <ul> <ul> <li>Notes can be useful for adding place names or other notations that you can add when you digitize your hand-drawn map.</li> </ul> <ul> <li>It may take a few minutes to prepare your Field Papers.</li> </ul> <ul> <li>When your print is ready, scroll to the bottom and click “Download PDF.”  The Field Paper should begin downloading.   If it loads in your browser, you may need to save it by going to File -&gt; Save.</li> </ul> <ul> <li>When the download is finished, open the PDF file.  Connect your computer to a printer and print the page.  If everything goes well, you should now have your map printed on paper.</li> </ul> </ul> </ul> <p style="text-align: center;"><a href="https://geojournalism.org/wp-content/uploads/2013/10/field-paper-Jakarta-Reservoir-example-2.jpg"><img alt="field-paper-Jakarta Reservoir " class="wp-image-763 aligncenter" decoding="async" height="475" loading="lazy" sizes="auto, (max-width: 614px) 100vw, 614px" src="https://geojournalism.org/wp-content/uploads/2013/10/field-paper-Jakarta-Reservoir-example-2-1024x791.jpg" srcset="https://geojournalism.org/wp-content/uploads/2013/10/field-paper-Jakarta-Reservoir-example-2-1024x791.jpg 1024w, https://geojournalism.org/wp-content/uploads/2013/10/field-paper-Jakarta-Reservoir-example-2-300x231.jpg 300w" width="614"/></a></p> <h2 class="summary-item" id="drawing-maps-with-field-papers"><a href="#drawing-maps-with-field-papers">Drawing Maps with Field Papers</a></h2> <ul> <ul> <ul> <li>Take your Field Papers outside, and use it as a guide to walk and identify new places that are not on the map.</li> </ul> <ul> <li>You can also work in a team with Field Papers. If you print our many atlas pages, you will also see a page that looks like this:</li> </ul> </ul> </ul> <p style="text-align: left;"><a href="https://geojournalism.org/wp-content/uploads/2013/10/field-paper-Jakarta-Reservoir-example-1.jpg"><img alt="field-paper-Jakarta Reservoir Grid" class="wp-image-764 aligncenter" decoding="async" height="475" loading="lazy" sizes="auto, (max-width: 614px) 100vw, 614px" src="https://geojournalism.org/wp-content/uploads/2013/10/field-paper-Jakarta-Reservoir-example-1-1024x791.jpg" srcset="https://geojournalism.org/wp-content/uploads/2013/10/field-paper-Jakarta-Reservoir-example-1-1024x791.jpg 1024w, https://geojournalism.org/wp-content/uploads/2013/10/field-paper-Jakarta-Reservoir-example-1-300x231.jpg 300w" width="614"/></a></p> <ul> <ul> <ul> <li>The grid on the front page of your atlas lets you know how each individual paper fit together. If you want to cover a large area it is helpful to work as a team. Each person or small group can take one page and fill out information for just that area. At the end of the day, everyone can meet up and upload their pen and paper edits online to synthesize the work of the group.</li> </ul> <ul> <li>Draw lines for roads, shapes for buildings, and so forth.  Write notes about each location directly on the map, or write numbers on the map that relate to numbers in your notebook, where you can write more detailed information about each feature.</li> </ul> </ul> </ul> <p style="text-align: center;"><a href="https://geojournalism.org/wp-content/uploads/2013/10/walking-paper-snapshot.jpg"><img alt="walking-paper-snapshot" class="wp-image-768 aligncenter" decoding="async" height="395" loading="lazy" sizes="auto, (max-width: 600px) 100vw, 600px" src="https://geojournalism.org/wp-content/uploads/2013/10/walking-paper-snapshot.jpg" srcset="https://geojournalism.org/wp-content/uploads/2013/10/walking-paper-snapshot.jpg 1000w, https://geojournalism.org/wp-content/uploads/2013/10/walking-paper-snapshot-300x197.jpg 300w" width="600"/></a></p> <ul> <ul> <ul> <li>When you are satisfied with your additions on the paper map, then you can add them digitally into OpenStreetMap.</li> </ul> </ul> </ul> <h2 class="summary-item" id="scan-and-upload"><a href="#scan-and-upload">Scan and Upload</a></h2> <ul> <ul> <ul> <li>Field Papers are very useful for mapping with nothing more than paper, but they are not 100% magic.  We will still need to upload our paper to FieldPapers.org, add our information digitally, and save our changes on OpenStreetMap.</li> </ul> <ul> <li>The first step is to scan your Field Paper into your computer.  You can do this by attaching a scanner to your computer, scanning the paper, and saving it as an image file.  If you don’t have a scanner, you can take a photography of the paper, but you should be carefully to take a very good photo.  Make sure that the paper is flat and your camera is directly in front of it.  Be sure to include the QR code in the image, as Field Papers will not work without it.  Here is an example of a scanned/photographed image:</li> </ul> <ul> <li>Once you have your Field Papers scanned and saved on the computer, open your web browser and return to <a href="https://walkingpapers.hotosm.org/">https://fieldpapers.org/</a>, just as before.</li> </ul> <ul> <li>Click on the “Upload” tab at the top of the page.</li> </ul> </ul> </ul> <p style="text-align: center;"><a href="https://fieldpapers.org/upload.php" target="_blank"><img alt="Field Papers Upload_Box" class="wp-image-770 aligncenter" decoding="async" height="360" loading="lazy" sizes="auto, (max-width: 603px) 100vw, 603px" src="https://geojournalism.org/wp-content/uploads/2013/10/Upload_Box.png" srcset="https://geojournalism.org/wp-content/uploads/2013/10/Upload_Box.png 914w, https://geojournalism.org/wp-content/uploads/2013/10/Upload_Box-300x178.png 300w" width="603"/></a></p> <ul> <ul> <ul> <li>Click “Choose File” and navigate to the file where you scanned/photographed your Field Papers.</li> </ul> <ul> <li>Click “Upload.”  It may take a few minutes for your paper to upload, depending on the speed of your internet connection.</li> </ul> </ul> </ul> <p style="text-align: center;"><a href="https://geojournalism.org/wp-content/uploads/2013/10/Processing_Bar.png"><img alt="Processing_Bar" class="wp-image-780 aligncenter" decoding="async" height="118" loading="lazy" sizes="auto, (max-width: 454px) 100vw, 454px" src="https://geojournalism.org/wp-content/uploads/2013/10/Processing_Bar.png" srcset="https://geojournalism.org/wp-content/uploads/2013/10/Processing_Bar.png 649w, https://geojournalism.org/wp-content/uploads/2013/10/Processing_Bar-300x78.png 300w" width="454"/></a></p> <ul> <ul> <ul> <li>At this stage, you’ll be able to add additional notes to your Field Paper in digital form. The simplest way to do so is the click on the “Edit in iD” link.</li> </ul> </ul> </ul> <p style="text-align: center;"><a href="https://geojournalism.org/wp-content/uploads/2013/10/Editing_From_Field_Papers_001.png"><img alt="Editing_From_Field_Papers_001" class="wp-image-782 aligncenter" decoding="async" height="430" loading="lazy" sizes="auto, (max-width: 564px) 100vw, 564px" src="https://geojournalism.org/wp-content/uploads/2013/10/Editing_From_Field_Papers_001.png" srcset="https://geojournalism.org/wp-content/uploads/2013/10/Editing_From_Field_Papers_001.png 940w, https://geojournalism.org/wp-content/uploads/2013/10/Editing_From_Field_Papers_001-300x228.png 300w" width="564"/></a></p> <h2 class="summary-item" id="congratulations"><a href="#congratulations">Congratulations!</a></h2> <p>In this tutorial you learned the process of using Field Papers and how they work.  You learned how to print, map, and scan a Field Paper. Next, you can use iD editor to add the places that we mapped into OpenStreetMap. Check out the next tutorial and you will have learned the complete process.</p> <div class="author-shortcodes"> <div class="author-inner"> <div class="author-image"> <img alt="" src="https://geojournalism.org/wp-content/uploads/2013/10/Emir_Bio.png"/> <div class="author-overlay"></div> </div> <!-- .author-image --> <div class="author-info"> Emir Hartato has been working on the Humanitarian OpenStreetMap (HOT) Indonesian team since June 2011. During his senior year at the University of Indonesia, Emir joined HOT as an intern. Kate Chapman, Jeff Haack, Vasanthi Harygono and Emir were the initial four to teach OSM under HOT. He has traveled extensively throughout Indonesia teaching OpenStreetMap to government workers, NGOs and other humanitarian organizations. </div> <!-- .author-info --> </div> <!-- .author-inner --> </div> .author-shortcodes <meta content="text/html; charset=utf-8" http-equiv="Content-Type"/> <p>The post <a href="https://geojournalism.org/2013/10/field-papers-how-to-make-digital-maps-with-a-pen-and-paper/">Field Papers: Make Digital maps with a Pen and Paper</a> appeared first on <a href="https://geojournalism.org">geojournalism.org</a>.</p> 747