This application is the simplest one to utilize our mesh networking stack. It just joins your device to the unsecure 6LoWPAN-ND network. The canonical source for this example lives at

Example mesh application for Mbed OS

With this application, you can use our mesh networking stack. This application joins your device to the unsecure 6LoWPAN-ND network.


Building with Mbed CLI

If you'd like to use Mbed CLI to build this offline, then you should refer to the Mbed CLI documentation. The instructions here relate to using the Mbed Online Compiler

  1. Click `Import this application` button.
  2. Change the channel settings: See the file `mbed_app.json` for an example of defining an IEEE 802.15.4 channel to use.
  3. Compile the application

A binary is generated at the end of the build process.

Connect the RF shield to the board

By default, we are using the Atmel AT86RF233, which you can purchase. Place the shield on top of your board, and power it on.

Program the target

Drag and drop the binary to the target to program the application.

Update the firmware of the border router.

You can read the instructions on updating the firmware of your board working as 6LoWPAN border router here.

Please remember to connect the Ethernet cable between the border router and your router. Then, power up the board.


As soon as both the border router and the target are up and running, you can verify the correct behavior. Open a serial console, and see the IP address obtained by the device.

Note: This application uses a baud rate of 115200.


connected. IP = 2001:db8:a0b:12f0::1

You can use this IP address to ping from your PC and verify that the connection is working correctly.

Changing the radio driver (optional)

To run a 6LoWPAN-ND network, you need a working RF driver for Nanostack. This example uses the Atmel AT86RF233 by default.

To change the RF driver:

  1. Uninstall the Atmel RF driver.
  2. Install the new driver. (For example, for the FRDM-CR20A radio shield based on the MCR20A device.)
  3. Recompile your application.

3 weeks ago

File content as of revision 128:e7faff9c9fd9:

# Notes on different hardware

As this example runs on multiple different mbed OS development boards there might be combinations of board and RF shields that may, or may not, work together due to pin collision or other reasons.

This page aims to collect information regarding different hardware combinations.

## RF shields

Following RF shield have been used with mbed OS mesh examples.

* [Freedom Development Board for MCR20A](
* [DVK-NCS36510-MBED-GEVB]( Development board, contains internal RF chip.

## Tested development boards

Following table shows which development boards have been tested. It does not present our current testing infrastructure, so we cannot guarantee all combinations but we do our best to ensure it is up to date.

| board / RF shield | Atmel | MCR20A | X-NUCLEO-IDS01A4 |
| K64F | <span style='background-color: #5f5;'>Yes</span> | <span style='background-color: #5f5;'>Yes</span> | |
| <span style='background-color: #ff5;'>NUCLEO_F429ZI **(1)**</span> | <span style='background-color: #5f5;'>Yes</span> | <span style='background-color: #5f5;'>Yes</span> | <span style='background-color: #ff5;'>Modified, **(3)**</span> |
| NUCLEO_F401RE | <span style='background-color: #5f5;'>Yes</span> | | |
| UBLOX_EVK_ODIN_W2 | <span style='background-color: #5f5;'>Yes</span> | <span style='background-color: #f00;'>No. **(2)**</span> | |
| Onsemi NCS36510 <span style='background-color: #5f5;'>(internal RF)</span> | | | |
| NXP KW24D <span style='background-color: #5f5;'>(internal RF)</span> | | <span style='background-color: #5f5;'>Yes **(4)**</span> | |
| NXP KW41Z <span style='background-color: #5f5;'>(internal RF)</span> | | | |
| <span style='background-color: #ff5;'>NUCLEO_L476RG **(6)**</span> | <span style='background-color: #5f5;'>Yes</span> | | |


1. If ethernet driver is enabled, requires HW modifications if RF shield uses SPI1. See [Driver notes]( and [nanostack-borderrouter-private Issue #17](
2. Pin collision, see [mesh-minimal Issue 55](
3. X-NUCLEO-IDS01A4 expansion board required modifications to be used in mbed OS. See [Driver readme](
4. KW24D have MCR20A chip integrated. Use the same driver.
5. KW24D has limited amount of memory (two banks of 32 RAM). For example, for the Thread end device use ARM or GCC_ARM. And for GCC_ARM use [this heap configuration](
6. NUCLEO_L476RF have LEDs on same pins that are used by Atmel RF shield so those should not be used in Light control demo. (LED1 & SPI_SCK == PA_5)