mbed Blog

Wallbot BLE on sale!

We are excited to share the JKSoft's new mbed-enabled platform, Wallbot BLE.


The Wallbot BLE (Bluetooth® Low Energy) is a programmable mbed-enabled wheeled robotic kit that has the ability to not only drive on the ground, but walls as well. When the Wallbot BLE is place on a magnetic surface such as a whiteboard, fridge, etc., the robot can drive in the vertical direction. It is not an Arduino form factor platform, but you can use on-board sensor devices by your code.

The kit features as follows:

  • Nordic semiconductor nRF51822 BLE device (ARM® Cortex™-M0 16MHz)
  • Flash 128kB, RAM 16kB
  • Controlled by iOS Apps (RCBController)
  • USB drag and drop programming
  • USB Virtual COM port for serial terminal
  • CMSIS-DAP interface for programming and debugging
  • Micro SD Card slot
  • Built-in LiPo battery and charging circuit
  • On-board sensors
    • MPU-6050 - 3D accelerometer and 3D gyro
    • 2 encoders (speed sensor)
    • 4 sensors for line tracing


You can get this robotic kit from the Switch-Science international online store now!


CSR and ARM mbed webinar: Helping you to connect everything

On Thursday February 12, ARM mbed’s Chris Styles, Application Engineering Manager, and Rohit Grover, Staff Engineer, will be joining Simon Finch, Head of Systems Integration at CSR in a webinar to discuss how you can use the ARM mbed platform and CSR shields to create Internet of Things (IoT) devices.


The webinar will cover:

  • An introduction to mbed – what the ecosystem is, how it can help you and how you can join
  • An overview of CSR’s mbed-enabled shields with a video demonstration of:
  • The chance to get your questions answered live about the platform and CSR shields

The webinar will take place twice on Thursday 12th February, click to register for a session:

Whether you are a developer who wants to build a consumer wireless home security system or you require connection for sensors to an industrial control system, you will want to be at this webinar.

It’ll help you discover how you can ease your efforts in getting your connected products to market quickly, easily and cost-effectively.

100,000 developers, a TLD, join the team!

This is the sort of blog that I feel very lucky to be able to write...

100,000+ developers!

That's right! Over 100,000 developers have signed up to mbed, which is a pretty insane number for embedded development!


We've also achieved supporting loads of platforms from different vendors, and lots of shared code and component libraries - thanks for everyone's efforts in all these contributions that make things so productive.

I remember when starting out, I had an estimate in my head there were about 200-300k embedded developers in the world based on various stats the industry uses. The same stats now say 800-900k, but I'm pretty convinced that they is wrong or perhaps more correctly, aren't relevant; IoT is going to make sure of it!

It is clear to me now that IoT will be a new industry unto itself, where the rules of how to get things done change, and the diversity of people working with "embedded" technology explodes. Bring it on!

A TLD to match!

Some of you remember when mbed first went live in private beta, we were @ mbed.co.uk


By the time we actually went live properly, I'd managed to get hold of mbed.org, and that is where we've been running ever since. But now I'm very pleased to say we've finally acquired the big one we've always been aiming for:

We now own mbed.com!

We're currently setting up some certificates and doing a bit of work on the developer site, so when the time is right, we'll be turning that on. All existing links will continue to work so there will be no disruption, but we will have finally made our ascent to the top of the internet TLDs!

Yet it feels like we may just be at the start of our journey...

Help build what's coming!

The next big OS to rock the world will be little - and we're building it!

IoT is a disruptive opportunity in technology of a scale that doesn't come around that often, and being in a position to work with a team of amazingly talented and passionate people at the centre of that disruption is pretty unique.


I've just had the pleasure of putting up over 15 new open positions in our team, and more will be coming in the next few weeks. We're looking to recruit from Low-level Embedded all the way up to Cloud-scale Devops, in Cambridge/UK and Oulu/Finland, but also in Austin/Texas, San Jose/California and Shanghai/China - so take a look! Maybe you know someone who should be part of our team?

For those interested and in Cambridge, we're also running an evening of Tech Talks to go in to more details:

Please do pass it on!

SparkFun mbed Starter Kit

Late last year Sparkfun introduced the ‘mbed Starter Kit’ and it's finally back in stock! This kit was pulled together in conjunction with Georgia Tech who use if for several classes and is designed to be an introduction to microcontroller based electronics! The kit includes the LPC1768 platform and all the components necessary to complete 10 tutorials created by SparkFun. Best of all, no soldering is required!

The tutorials cover embedded concepts such as:

  • LEDs (what good microcontroller project doesn't?)
  • Pulse-width modulation (PWM)
  • Interrupt-driven events
  • LCD graphics
  • Communication protocols (I2C, SPI, and UART)
  • Sensors (accelerometer and temperature)
  • Connecting to the Internet (IoT)
  • USB (device and host)
  • Logging data to an SD card
  • Playing sounds

Note: A keyboard and an Ethernet-based Internet connection are needed for two of the tutorials.

The kit can be purchased from Sparkfun and is a great introduction to mbed. Many of the concepts from the tutorials can be integrated into your own microcontroller projects.

Ö Bluetooth Ring

Wearable technology is a hot topic right now and it seems like a new smartwatch or fitness tracker is announced every other day! But what about having a tiny computer on your finger? What would you want it to control? I recently came across one of the smallest mbed projects we have ever seen before, the Ö Bluetooth Ring. This tiny personal computer was created by Kevin Bates, the founder of the company Arduboy, and we got a chance to chat with him while on his business travel in route to Shenzhen, China via Hawaii.

This 3D printed, bluetooth ring features a 64x32 monochrome OLED display, and touch button. 4+ hours of battery life with the display on and 24+ hours when in standby. It was prototyped using the Seeed Arch BLE, is programmed with mbed and the final design uses the Nordic nRF51822 SoC wrapped up in a Seeed Micro BLE Module.


This ring allows you to receive and reply to notifications from your cell phone, show fun animations, display digital and analog clocks and much more. Bates is currently working on the final design and ring assembly. He plans to move to the CSP (chip scale package), which will decrease the size of the ring making it more comfortable for daily wear. We are looking forward to seeing how this project progresses and are eager to try it out ourselves.



If you've taken a project from prototype to production (or are in pre-production) we'd love to hear about it. Send a message to support@mbed.org and tell us about it!