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ubuntu-CPS-MC341-ADSC2-c.md

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platform device language
Ubuntu 10.04LTS
CPS-MC341-ADSC2
c

Run a simple C sample on CPS-MC341-ADSC2 device running Ubuntu 10.04LTS

Table of Contents

Introduction

About this document

This document describes how to connect CPS-MC341-ADSC2 device running ubuntu10.04LTS with Azure IoT SDK. This multi-step process includes:

  • Configuring Azure IoT Hub
  • Registering your IoT device
  • Build and deploy Azure IoT SDK on device

Step 1: Prerequisites

You should have the following items ready before beginning the process:

  • By connecting a serial cable from host PC to CONPROSYS through the serial port (Diameter 3.5 MINI-JACK), you can log in from the console to the product. See the setting details below.

    • Baud rate:115200 bps
    • Data bit:8bit
    • Parity:none
    • Stop bit:1bit
    • Hardware flow:none

  • We recommend the following serial cable for connecting the host PC to CONPROSYS.Download appropriate driver software to match OS of PC serial monitoring.

    • TTL-232R-3V3 AJ by FTDI (included when purchasing the package version)
    • URL for driver can be found here
    • Default log-in and password are
      • Log-in:conprosys
      • Password:contec

  • Computer with Git client installed and access to the azure-iot-sdks GitHub public repository.

  • CPS-MC341-ADSC2 device.

  • Download and install DeviceExplorer.

  • Set up your IoT hub.

Create a device on IoT Hub

Write down device credentials

  • Make note of the Connection String for your device by following the instructions in "Get device connection string or configuration data" section of DeviceExplorer Usage document.

Step 2: Prepare your Device

  • Default network setting is listed below:

    • LAN A (eth0): 10.1.1.101
    • LAN B (eth1): 192.168.1.101 (for 2 LAN Type setting only)

  • If you would like to change the network setting, edit the file on target at location etc/network/interfaces

      Example)  Set "eth0" to "dhcp".
  auto eth0
  iface eth0 inet dhcp

  • On the board, system reboot.

  • Set the time synchronization using the ntpdate command.

  • Install the uuid-dev

    sudo apt-get install uuid-dev

Step 3: Build and Run the sample

3.1 Build SDK and sample

  • Download the Microsoft Azure IoT Device SDK for C to the board by issuing the following command on the board::

    git clone --recursive https://github.com/Azure/azure-iot-sdks.git

  • Edit the following file using vi editor:

    {{For AMQP protocol:}}

    azure-iot-sdks/c/iothub_client/samples/iothub_client_sample_amqp/iothub_client_sample_amqp.c

    {{For HTTPS protocol:}}

    azure-iot-sdks/c/iothub_client/samples/iothub_client_sample_http/iothub_client_sample_http.c

  • Find the following place holder for device connection string:

    static const char* connectionString = "[device connection string]";

  • Replace the above placeholder with device connection string you obtained in Step 1 and save the changes.

  • Set the time synchronization using the ntpdate command.

  • Edit the following file using vi editor:

    azure-iot-sdks/c/build_all/linux/build.sh

  • Find the following place holder:

    CORES=$(grep -c ^processor /proc/cpuinfo 2>/dev/null || sysctl -n hw.ncpu)

  • Edit as follows, and then save the changes:

    CORES=1

  • Edit the following file using vi editor:

    azure-iot-sdks/c/c-utility/tests/condition_unittests/CMakeLists.txt

  • Add, and then save the changes:

    Set(CMAKE_CXX_FLAGS "-lrt")

  • Build the SDK samples using the following command:

    sudo -E ./azure-iot-sdks/c/build_all/linux/build.sh

3.2 Send Device Events to IoT Hub:

  • Run the sample by issuing following command:

    {{If using AMQP protocol:}}

    azure-iot-sdks/c/cmake/iotsdk_linux/iothub_client/samples/iothub_client_sample_amqp/iothub_client_sample_amqp

    {{If using HTTPS protocol:}}

    azure-iot-sdks/c/cmake/iotsdk_linux/iothub_client/samples/iothub_client_sample_http/iothub_client_sample_http

  • On Windows, refer "Monitor device-to-cloud events" in DeviceExplorer Usage document to see the data your device is sending.

3.3 Receive messages from IoT Hub