A Step by Step Guide to Develop Temperature Sensor IoT Application Using IBM Bluemix

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A Step by Step Guide to Develop Temperature
Sensor IoT Application Using IBM Bluemix
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• What is IBM Blue-mix?
• IMB Bluemix provides readily available
  environment for applications, infrastructure and
  services. Integrated with IBMWatson, it offers
  possibilities of cognitive services as well.
• We have developed an IoT application using IBM
  Bluemix, Raspberry PI 3 and a virtual device
  that sends email notifications to user as and
  when there is a fluctuation in temperature.
• Process flow Virtual device will be placed at
  desired location gtgt If temperature at that
  location rise more than 21 degree centigrade, the
  user will simply get notification about it by
  email.
• This blog is a step by step guide to develop
  temperature sensor IoT application and it
  includes
• Virtual device Raspberry PI integration with
  IBM Blue-mix
• Register Virtual Device and analyze the device
  data
• Register Raspberry PI 3 and analyze the device
  data
• Linking Raspberry PI with our device through IBM
  Bluemix

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You register Raspberry PI 3 with Blue Mix. Up
to scertain extent the process of registering and
adding Raspberry PI 3 will be quite similar to
registering and adding virtual device that you
have gone through in first phase of this blog.
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Step by Step Virtual device Raspberry PI
integration with IBM Blue-mix

1. Open www.bluemix.net
2. Create free trail account in blue-mix
3. Once the registration email verification
   process gets completed, you can login in to
   blue-mix.

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• 4. While you log in for the first time, you need
  to complete several formalities such as
• Provide your organization name / create your
  organization
• Create Space (The spac where you can manage your
  applications and services)

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5. Then, click on Catalog and it will display
the list of services provided by IBM Blue-mix.
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6. You need to follow the path Services gtgt
Internet of things gtgt Internet of Things Platform.
7. Write down the name of service you are trying
to create in the field Service Name and click the
Create button
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8. Once your service has been created, you will
be able to see Launch button that will navigate
you to IoT service dashboard
 9. From this IoT service dashboard you can
manage your devices, schema, charts etc. We will
start with registering our virtual devices and
analyzing the data.
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You register Raspberry PI 3 with Blue Mix. Up
to ascertain extent the process of registering
and adding Raspberry PI 3 will be quite similar
to registering and adding virtual device that you
have gone through in first phase of this blog.
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1. From the dashboard, go to Device and click on
Add Device. You need to choose your device type
there from a dropdown list. If you have not
defined any device, click on Create Device Type
button to define it.
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• 2. Once you have defined device type through
  Create Device Type, you will able to
  see device type in the drop-down.

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3. Then you need to provide Device ID, which can
be any friendly name.
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4. Once the device is created, IBM will provide
your device credentials. Please save it in safer
place.
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5. Once your device has been added, youll see
your device in listing panel.
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6. Your device status will be displayed as
disconnected. To connect your virtual device to
IoT platform, use the url below, which is the IBM
virtual simulator. http//watson-iot-sensor-simul
ator.mybluemix.net/?cm_spdw-bluemix-_-recipes-_-d
evcenter
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7. You need to key in the device credentials here
which are provided to you by IBM.
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For example Organization ID rri9kn Device
Type virtualdevice Device ID
virtualdevice123 Authentication Method
token Authentication Token eOTP?4zGr-LYo
Rmn8
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8. Now IoT sensor simulator will try to connect
with IBM blue-mix
(You can see that in device listing panel your
device status has been updated as Connected with
IBM blue-mix in device listing panel.)
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9. Click on device to view json data received by
IBM blue-mix from Recent Events tab.
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10. Now go to Boards gtgt Create one board.
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11. Click on add chart.
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12. Click on Donut chart gtgt Select your device
and add data set.
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13. Now youll able to see donut chart on your
dashboard.
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14. Now, if you change the temperature in
simulator, you will be able to see the changes in
charts as well. 15. If there is requirement to
perform any actions based on data analysis of
collected data, there is flexibility to define
relevant notifications settings in Blue-mix. It
means, we can get notifications by mail or by
phone in accordance with settings. 16. For
notifications settings, you need to create schema
first. For that follow the path Device gtgt Manage
Schema Tab gtgt Create Schema
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Select details for device and move to next
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17. Now, you need to add properties to schema,
hence, click on Add property. Please note that,
you need to design our schema based on json we
are getting from the device. For example
"d""name""virtualdevice123","temperature"19,"
humidity"57,"objectTemp"23
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18. First we will add d as parent property
based on our json, and then we will add child
properties.
19. Click on Finish to add schema.
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20. Now go to Rules gtgt Create Cloud Rule
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21. Click on Next to create cloud rule.
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22. Click on Edit condition to set cloud
condition. Then select Temperature property from
drop-down and provide static value as 21.
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23. Follow the path Edit action gtgt Add action
24. Click on Activate to add activate the
rule. 25. Now go to simulator and change device
temperature to 21 to get email alert.
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26. Go to Boards gtgt Rule-Centric Analytics
Alert details will be displayed here in
different boards
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• Dashboard gtgt Device gtgt Add Device gtgt Create
  Device Type gtgt IBM will share credentials for the
  Raspberry PI 3 device gtgt Raspberry PI 3
  device will be displayed in device listing with
  disconnected status gtgt Connect the
• Raspberry PI 3 device
• 2. In the list you can see our Raspberry PI
  device status is disconnected.

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3. Setting up Watson IoT on Raspberry PI To
setup Watson IoT platform, you need to download
Watson IoT platform installer from IBMs Github.
Run below command in Raspberry PI terminal to
download Watson IoT platform installer. curl -LO
https//github.com/ibm-messaging/iot-raspberrypi
/releases/download/1.0.2.1/iot_1.0-2_armhf.deb 4.
Once installer has been downloaded, run below
command to install it. sudo dpkg -i
iot_1.0-2_armhf.deb
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5. Run below command to verify iot service
status. service iot status 6. If you can see
message as shown below, youre good to
go. iot.service - LSB IoT service Loaded
loaded (/etc/init.d/iot) Active active
(running) since Fri 2017-05-26 214209 IST 51s
ago CGroup /system.slice/iot.service
-2730 /opt/iot/iot /dev/null
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1. To link the Raspberry PI with your virtual
device in IBM Bluemix, first of all you need to
IoT service running in Raspberry pi. Run the
below command to stop it. sudo service iot
stop 2. Type the below command to device
configuration file. sudo nano /etc/iotsample-rasp
berrypi/device.cfg
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3. Copy and paste the device information to
device.cfg file. You have received this
information while getting registered with IBM
Bluemix. Device configuration file org
p29vg0 type RaspberryPI3 id
PiBrain auth-method token auth-token
3)DPXWaNFQlZgjs End of Configuration file
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4. The newer version of Raspberry PI has already
come up with Node-RED and Watson IoT. If you are
using the newer version, run following command to
update Raspberry PI sudo apt-get update sudo
apt-get dist-upgrade 5. Type below command to
start Node-RED. node-red
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6. Once your node-red server has started, you can
see it from below url.
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7. IBM offers set of nodes that we can use
potentially. Open below url and copy JSON from
it. https//raw.githubusercontent.com/ibm-messagi
ng/iot-device-samples/master/node-red/device-sampl
e/quickstart.json
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8. In Node-RED editor go to Menu gtgt Import gtgt
Clipboard
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9. Paste JSON value to import nodes
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10. Double click on Event node
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11. A pop-up will appear, select Registered
radio button and click on edit button.
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12. Add the data which have configured in our
device.cfg file.
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13. Click on Add button to save the data which
help to connect to IBM Bluemix. 14. Click on
Deploy button to connect your device with IBM.
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15. Now your device is connected.
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You can conform the connection status through
device listing
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Now as your Raspberry PI is connected to IBM
bluemix, you can create your charts, schemas and
rules as we have created for the virtual
device. In fact, if cleverly utilized, IBM
Bluemix can be the enabler of more than 150
different services being offered by IBM, other
service and software providers and several
communities. Due to its Composable Service
Approach and support to virtual machine
deployments, there are unlimited possibilities to
explore its potential for development of
innovative IoT products. As a programmer, I see
it as a next big thing.
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Original Source http//www.azilen.com/blog/step-
by-step-guide-to-develop-iot-application-using-ibm
-bluemix/ Originally Published _at_ www.azilen.com
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