Nuvoton NuMicro NuMaker-IoT-M487 Quick start guide

Connect NuMaker-IoT-M487 device
to your Azure IoT services
Table of Contents
Introduction
Prerequisites
Prepare the Device.
Integration with Azure IoT Explorer
Connect to Azure IoT Central
Additional information
Additional Links
Introduction
About this document
This document describes how to connect NuMaker-IoT-M487 to Azure IoT
Hub using the Azure IoT Explorer with certified device application and device
models.
IoT Plug and Play certified device simplifies the process of building devices
without custom device code. Using Solution builders can integrate quickly
using the certified IoT Plug and Play enabled device based on Azure IoT
Central as well as third-party solutions.
This getting started guide provides step by step instruction on getting the
device provisioned to Azure IoT Hub using Device Provisioning Service (DPS)
and using Azure IoT Explorer to interact with device's capabilities.
The NuMaker-IoT-M487 development board integrates common components
and built-in multi-axis sensor. It also provides compatible Arduino UNO and

mikroBUS™ interfaces, which means GPIO, UART, ADC, PWM, SPI, I2C, etc. can
be connected. The built-in Nuvoton NuMaker Brick I2C interface is also
available. A unique simulated image sensor interface can connect to the CMOS
image sensor to capture image for analysis. Combined with the NAU88L25
audio codec, the development board provides high-quality recording and
playback. The external SPI Flash and microSD card socket provide additional
data storage.
NuMaker-IoT-M487 provides multiple networking, interfaces, image sensing,
audio recording, playback functions, and flexible extended data storage.
Whether you need a sensor node or a light-weight gateway, the
NuMaker-IoT-M487 is an ideal choice for IoT applications.
Prerequisites
You should have the following items ready before beginning the process:
Azure Account
Azure IoT Hub Instance
Azure IoT Hub Device Provisioning Service
Azure IoT Public Model Repository
Prepare the Device.
Development Environmental setup
IoT Plug and Play Certification is certifying specific device code
implementation against specific device model. Device builders should either
pre-install device code or make the binary download-able.
NuMaker-IoT-M487 is a development board with onboard Ethernet and WiFi
module. The following figure shows each part of the hardware resources on
this board.

1. Features implemented of the device
Telemetry data acceleration of X/Y/Z sent from multi-axis sensor
Telemetry data temperature sent from multi-axis sensor
Telemetry data sent from button
LED control
Reported device information
Reboot command
2. Power supply by USB cable
3. Configure connecting with IoT Hub via DPS in mbed_app.json, set DPS
parameters as below (Note : DPS ID scope should be configured w/o
recompiling the embedded code)
mbed_app.json:

4. Configure device network interface over Wifi or Ethernet.
Ethernet: Need no further configuration.
WiFi: Configure WiFi SSID/PASSWORD
mbed_app.json:
5. To install compiler toolchain for Mbed CLI from
https://os.mbed.com/docs/mbed-os/v6.5/build-tools/install-and-set-up
.html
6. To build the code on NUMAKER_IOT_M487 target and ARM toolchain:
Target ARMCC tool chain:
$ mbed compile –m NUMAKER_IOT_M487 –t ARM
Target GCC tool chain:
$ mbed compile –m NUMAKER_IOT_M487 –t GCC_ARM
7. Flash by drag-n-drop'ing the built image file below
onto NuMaker-IoT-M487 board
BUILD/NUMAKER_IOT_M487/ARM/NuMaker-mbed-Azure-IoT-CSDK-PnP-example.b
in
Integration with Azure IoT Explorer
Connect the IoT Plug and Play device with Azure IoT Explorer
1. Click Add connection and provide IoT hub connection string.

2. Click View devices in this hub to list registered devices.
3. Click target device to interact with.

4. Click IoT Plug and Play components to interact with
5. On failure to find IoT Plug and Play model file, configure the path for it.

6. Then you can find Default, BMX055, and DeviceInformation
components to interact with.
Property
Go to DeviceInformation component, On Properties (read-only) tab,
you would see device information of the device.

Go to Default component. On Properties (writable) tab, you can turn
on/off LED and check the corresponding result on the device.
Telemetry
Go to Default component. On Telemetry tab, click Start. After a few
seconds, you would see buttons1/2 state (0/1 for un-pressed/pressed).

Go to BMX055 component. On Telemetry tab, click Start. After a few
seconds, you would see Acceleration stream data.
Command
Go to Default component. On Command tab, you can reboot the device after
e.g. 5s.

Connect to Azure IoT Central
Connect the IoT Plug and Play device with Azure IoT Central
1. Click Devices label and press New to prompt Create a new device window
in Azure IoT Central web page.
2. Click Create to generate one device.