raspberry-pi

Watson IoT Platform getting started guides

This sample application is included as a component in a set of Getting Started guides that step through the basics of developing a ready-for-production, end-to-end IoT prototype system with Watson IoT Platform.

Developers who are new to working with Watson IoT Platform can use the step-by-step processes in the Getting Started guides to develop and deploy a solution that demonstrates one or more Watson IoT Platform features.

For more information about the getting started guides, see the Watson IoT Platform documentation.

Connect a device to Watson IoT Platform

In this lesson, you will learn how to connect a Raspberry Pi device to the Watson IoT Platform. You will learn how to interface a motor with the Raspberry Pi and then connect the Raspberry Pi with Watson IoT Platform

Requirements

Hardware

1. Raspberry Pi(2/3) with Raspbian OS v 4.4+
2. L298N Dual H Bridge Motor Driver Board
3. 9v DC motor
4. 9v Battery

Software

1. python 2.7.9 and above(pre-installed with Raspbian OS)
2. Watson IoT Python library

Step 1 : Hardware configuration

You will need all the hardware present in the requirements for this step

Below is the schematic diagram for the circuit.

Connections are

• Raspberry pi 's pin 2 to +5v of L298N board
• Raspberry pi 's pin 6 to GND of L298N board
• Raspberry pi 's pin 13 to IN1 of L298N board
• Raspberry pi 's pin 15 to IN2 of L298N board
• +9v of Battery to +12v of L298N board
• -9v of Battery to GND of L298N board
• Motor's +ve node to OUT1 of L298N board
• Motor's -ve node to OUT2 of L298N board

Step 2 : Getting the code from repository and configure

Open the terminal or ssh to your Raspberry pi.

(Optional) If you do not have git installed in your Raspberry Pi, you can install it with the following command

$ sudo apt-get install git

• Git Clone this repository in your Raspberry Pi

$ git clone https://github.com/ibm-watson-iot/guide-conveyor
$ cd guide-conveyor/raspberry-pi

• You may need to make shell script executable use this command sudo chmod +x setup.sh
• Run the setup.sh and fallow the instruction given in that

$ ./setup.sh

Step 3 : Run the program

python deviceClient.py -t 2

For help run

python deviceClient.py -h

Now this client program will start your motor connected and publish the device sensor data to the Watson IoT platform every second, it will stop after 2 minutes as per given parameter.

Useful links

IBM Bluemix
IBM Bluemix Documentation
IBM Bluemix Developers Community
IBM Watson Internet of Things
IBM Watson IoT Platform
IBM Watson IoT Platform Developers Community