platform	device	language
ubilinux 3.0	UP-board	c

Run a simple C sample on the UP-board running ubilinux 3.0

Introduction

About this document

This document describes the process of setting up an UP-board device to connect to an Azure IoT hub. This multi-step process includes:

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

Download the latest version of ubilinux 3.0 following this link
Install ubilinx 3.0 by following the Getting started guide
Login to your system using user ubilinux and same password and open a terminal.

Run the following commands in the terminal.

Download the Azure IoT device SDK:

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

Confirm that you now have a copy of the SDK under the directory ./azure-iot-sdks. Then cd to the directory:
```
cd azure-iot-sdks
```
Prepare your environment by running. Answer y when you are prompted to install the additional components needed to run the samples:
```
sudo c/build_all/linux/setup.sh
```
Edit the file ./c/iothub_client/samples/iothub_client_sample_http/iothub_client_sample_http.c and replace connection string placeholder with the connection string you obtained in the step above. (You can use the console-based text editor vim to edit the file):
```
static const char* connectionString = "[device connection string]";
```
Note: You can skip this step if you only want to build the samples without running them.
Finally, build the SDK and sample applications:
```
./c/build_all/linux/build.sh
```

Run the iothub_client_sample_http sample:

sudo ~/cmake/iothub_client/samples/iothub_client_sample_http/iothub_client_sample_http

This sample application sends simulated sensor data to your IoT Hub.

See Manage IoT Hub to learn how to observe the messages IoT Hub receives from the application.
See Manage IoT Hub to learn how to send cloud-to-device messages to the application.