Raspberry Pi

In this tutorial, you will connect a Raspberry Pi to WSO2 IoT Server and manage it. The following subsections explain how you can work with the Raspberry Pi device type:

Let's get started!

Start the Raspberry Pi

1. Sign in to the Device Management console.

    Click here for more information.

   Follow the instructions below to sign in to the WSO2 IoT Server device management console:

   1. If you have not started the server previously, start the server.

   2. Access the device management console.

      • For access via HTTP: 
http://<IOTS_HTTP_HOST>:9763/devicemgt/ 

        For example: http://localhost:9763/devicemgt/
      • For access via secured HTTP: 
        https://<IOTS_HTTPS_HOST>:9443/devicemgt/ 
For example: https://localhost:9443/devicemgt/ 

   3. Enter the username and password, and sign in.

      • The system administrator is able to log in using admin for both the username and password. However, other users will have to first register with WSO2 IoT Server before being able to log into the IoTS device management console. For more information on creating a new account, see Registering with WSO2 IoT Server.

      • If you are signing in as a different tenant user, the username needs to be in the following format <USERNAME>@<TENANT_DOMAIN>.

      

   4. Click LOGIN. The respective device management console will change, based on the permissions assigned to the user.
      For example, the device management console for an administrator is as follows:
      

2. Click Enroll New Device.
   
3. Click Raspberry Pi to enroll a device of the type Raspberry Pi.
   

4. Connect the DHT11 Temperature Sensor and the LED to the Raspberry Pi board.

5. Set up your Raspberry Pi device as shown in the schematic diagram. 

   Ensure that your Raspberry Pi Board is Internet enabled, either via Wi-Fi or Ethernet.

   

6. Download the device agent.
   1. Click Download Agent.
   2. Enter a preferred name on the download agent form.
   3. Click DOWNLOAD NOW to download the device agent on your machine.
7. Unzip the downloaded agent file and copy the unzipped file onto your Raspberry Pi board.

8. Navigate to the downloaded agent that is on the Raspberry Pi board.
   Example: 

   cd <RASPBERRY_PI_BOARD>/agent

9. Test to confirm that the agent is working as expected.

   ./testAgent.sh

   You can run the script on your local machine, on which the agent was downloaded.

   
   

    Click here to know more about testing the agent.

   Follow the steps given below to confirm that the agent is working as expected.

   1. You will be prompted to get the apt-get updates and continue. Enter Yes to get the updates or enter No to continue without the updates.
      Example: Continue without receiving the apt-get updates.

      Do you wish to run 'apt-get update' and continue? [Yes/No] No

   2. Enter the time interval that you require for the device to push data to WSO2 IoTS, in seconds.

      Example: Push data to the IoTS every 45 seconds.

      What's the time-interval (in seconds) between successive Data-Pushes to WSO2-IoTS (ex: '60' indicates 1 minute) > 45

   3. Run the test agent as a virtual agent. Enter Yes to run it as a virtual agent or enter No if you wish to run the test on the Raspberry Pi device itself.

      If the Raspberry Pi device is not connected to the IoT Server and if you enter No, you will run into errors as the server will not be able to find the device.

      Example: Running the agent as a virtual agent.

      Do you want to run this as a virtual agent? (Yes/No) Yes

   Once the virtual agent starts you can view the data being pushed to the IoT Server.

   Example:

   RASPBERRY_STATS: Temp=25.0*C  Humidity=28.0%
   send: 'POST /raspberrypi/controller/push_temperature/ HTTP/1.1\r\nHost: 10.100.7.35:9443\r\nAccept-Encoding: identity\r\nAuthorization: Bearer 88f4940a2c26ef2b7b5d02d2767182c7\r\nContent-Type: application/json\r\nContent-Length: 84\r\n\r\n'
   {"owner":"admin","deviceId":"1h7ldn73eha2f","reply":"10.100.7.35:5678","value":"25"}
   ~~~~~~~~~~~~~~~~~~~~~~~~ Pushing Device-Data ~~~~~~~~~~~~~~~~~~~~~~~~~
   send: '{"owner":"admin","deviceId":"1h7ldn73eha2f","reply":"10.100.7.35:5678","value":"25"}'
   reply: 'HTTP/1.1 204 No Content\r\n'
   header: Date: Wed, 20 Jan 2016 06:01:55 GMT
   header: Server: WSO2 Carbon Server
   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   RASPBERRY_STATS: 204
   RASPBERRY_STATS: No Content
   RASPBERRY_STATS: Response Message
   Date: Wed, 20 Jan 2016 06:01:55 GMT
   Server: WSO2 Carbon Server

10. Start and deploy the agent as a service on the Raspberry Pi board once you have tested the agent as explained in step 9.

    The registered service will be loaded on boot up.

    ./startService.sh

Control the bulb

Once you start and deploy the Raspberry Pi agent, follow the steps given below to turn on or turn off the bulb connected to the Raspberry Pi board.

1. Click Bulb On/Off under Operations on the Device Details page.
   
2. Enter On to switch the bulb on and click Send to Device. Enter Off to switch the bulb off.
   

View device analytics

Click  to monitor real-time data via the Device Details page.

Example:

What's next?

Follow the options given below to see what you can do next.

• Navigate to the Device Management page to view all the devices created by you.

   Click here for more information on navigating to the Device Management page.

  1. Sign in to the Device Management console.
  2. Click the menu icon.
     
  3. Click Device Management.
     
• Select a device from your device dashboard and check the available operations and monitor real-time data.