B-L475E-IOT01A.md

B-L475E-IOT01A

Integrate your B-L475E-IOT01A Discovery kit board.

Prerequisites

• The B-L475E-IOT01A board with a USB cable.
• Installed minicom (for Linux) or RealTerm or PuTTy (for Windows) or other serial communication program.
• Installed ST-Link or OpenOCD debugger.
• A user with access to the {{ coiote_long_name }}.

Prepare Anjay client application

Use an already built binary

To get the latest binary file and flash it to the board:

0. Go to Anjay-zephyr-client.
1. Download the demo_B-L475E-IOT01A1_merged.bin file.
2. To flash the board, open your File manager and drag the downloaded .bin file to your DIS_L4IOT external device.
3. You will see a blinking diode on your board. The diode will stop blinking as soon as the flashing is finished.

Start development using samples

!!! Note This step is optional. If you've gone through the Use an already built binary step, you can jump to Connect to the LwM2M Server.

Part 1: Get Zephyr and Python dependencies

To get the Zephyr SDK and dependencies follow the first 4 steps of the instruction provided by the Zephyr Project.

Part 2: Clone the Anjay zephyr repository

Enter the command line interface on your machine, then paste and run the following command:

git clone https://github.com/AVSystem/Anjay-zephyr-client

Part 3: Build binary and flash the board

0. Connect the B-L475E-IOT01A board to a USB port of your machine.

1. Set West manifest path to Anjay-zephyr-client/demo, and manifest file to west.yml and do west update:

   west config manifest.path Anjay-zephyr-client/demo
   west config manifest.file west.yml
   west update
   

2. Compile the project for B-L475E-IOT01A using west build -b disco_l475_iot1 in the demo directory.

3. Flash the board using west flash.

Connect to the LwM2M Server

To connect to {{ coiote_long_name }}, please register at [{{ coiote_site_link }}]({{ coiote_site_link }}).

To connect the board:

1. Log in to {{ coiote_short_name }} and from the left side menu, select Device Inventory.
2. In Device Inventory, click Add device.
3. Select the Connect your LwM2M device directly via the Management server tile. 3. In the Device credentials step: - In the Device ID enter your board endpoint name, e.g. test_device. - In the Security mode section, select the PSK (Pre-Shared Key) mode: - In the Key identity field, type the same name as in the Endpoint name field. - In the Key field, type the shared secret used in the device-server authentication. 4. Click the Add device button and Confirm in the confirmation pop-up. 5. In the Connect your device step, follow the next section to run the client and connect it to the server.

Configure the Client

0. With the board still connected to a serial port interface, open your serial communication program.

1. Use the anjay command to list possible options:

   uart:~$ anjay
   anjay - Anjay commands
   Subcommands:
   start   :Save config and start Anjay
   stop    :Stop Anjay
   config  :Configure Anjay params
   

   !!! tip To show available subcommands, use the Tab key.

2. Check your default credentials by following the instructions in the program: {:style="float: left;margin-right: 1177px; margin-top: 7px; margin-bottom: 17px;"}

   !!! note Use the anjay stop command to stop LwM2M Client and change credentials.

   If your default credentials are different from device credentials provided in {{ coiote_short_name }}, change them using the anjay config set <possible_option> <value> command.
   {:style="float: left;margin-right: 1177px;margin-top: 7px; margin-bottom: 17px;"}

3. Use the anjay start command to run the Client.

4. Go to {{ coiote_short_name }} to check if your device is connected. Click Next, then Go to Summary, then Finish. You will see your Device Center view:

!!! tip LwM2M Server URI, endpoint name and other information can be found in the Configuration tab.