Tag Archives: leshan

Remote management of an ARM mbed device using LwM2M, Wakaama & Leshan

One of the great strengths of LightweightM2M (LwM2M) is to be… ahem… lightweight! The fact that it relies on CoAP for the communication, and that all the standard resources are meant to be very concise really helps making very small implementations that can fit in constrained devices.

In the video below, you can see how Eclipse Wakaama (a C implementation of LwM2M) has been ported to an mbed NXP LPC1768 – a device with just 32KB of RAM! – and is controlled from Eclipse Leshan, a LwM2M server in Java.

What I really like in this video is that it shows how simple yet powerful LwM2M actually is, and how efficiently you can fit advanced features like firmware upgrade in very constrained devices.

View the video on YouTube

Manage all the things, small and big, with open source LwM2M implementations @ FOSDEM 2015

Here is the recording of my presentation on Device Management with LwM2M at FOSDEM’15.

Abstract: LwM2M is a standard for device management that solves many of the issues M2M and IoT solutions makers have faced in the past (or, let’s be realistic, are still facing), with custom protocols or even standards like OMA-DM: complex workflows, high bandwidth usage, lack of open-source implementations… Join this talk to get an overview of the LwM2M protocol, and to learn how you can start managing an embedded device with Eclipse Wakaama (yes, it fits in an Arduino, and yes, there will be a live demo!), or build your own device management server with Eclipse Leshan.

Leshan and Wakaama in action at FOSDEM 2015

A nice video recorded by John Alexander at FOSDEM earlier this month. It shows a live demo of Wakaama and Leshan used to remotely manage (including over-the-air firmware upgrade!) an mbed NXP LPC1768.

Thanks John!