New $12.95 mbed-enabled Freescale board!

We're very pleased to announce the new mbed-enabled Freescale FRDM-KL25Z board!

FRDM-KL25Z is now mbed-enabled

We've been working with Freescale on the development of their new range of ultra-low-cost boards, and from today you can upgrade them for free to be mbed-enabled and get free access to the mbed online compiler and development platform.

It is great to be able to welcome Freescale to the mbed project!

About the FRDM-KL25Z board

The FRDM-KL25Z Freescale Freedom development board uses the Kinetis L series of MCUs, the industry’s first microcontrollers built on the ARM® Cortex™-M0+ core. The board is based on the KL25Z128VLK, a tiny KL2 family device that runs at 48 MHz, has 128 KB of flash, a full-speed USB controller and various analog and digital peripherals. The FRDM-KL25Z hardware is form-factor compatible with the Arduino™ R3 pin layout, so it'll work with lots of existing shield designs. The board includes some bonus features of an RGB LED, a 3-axis digital accelerometer and a capacitive touch slider.

Freescale FRDM-KL25Z supported in the mbed platform!

We've been working with Freescale to add support in the mbed SDK, HDK and Online Tools for the KL25Z, so now you can use the FRDM-KL25Z board with the mbed development platform for free!

We'll be introducing additional mbed-enabled development platforms from Freescale (and others) in 2013.

Get yours now!

You can get the FRDM-KL25Z development platform from Farnell/Newark/Element14 for a suggested resale price of $12.95 (USD):

For more information on the board, see:

If you are new to mbed, why not explore why you should base your next project on the mbed platform:

30 comments on New $12.95 mbed-enabled Freescale board!:

26 Feb 2013

Wow this is amazing!

26 Feb 2013

wow ....low cost....mbed rocking........

26 Feb 2013

Very Sweet! Keep up the amazing work!

27 Feb 2013


27 Feb 2013

just tried to order, but i am living in Thailand :) on eBay they charge double prices 25 USD, why ?

01 Mar 2013

I see that the link takes me to Farnell in the UK/Europe. I can also buy this board from a couple of USA based distributors. Are they the same board?

01 Mar 2013

Holy S*! Now I need a cheap WiFi solution to automate the world!

01 Mar 2013

This is simply AMAZING!!!!!!

Here in Brazil, the LPC1768 mbed board costs aprox. $142 =-O!!!!!!!!!!!!!!!!

This board here costs $23...

Very very sweet!

01 Mar 2013

Hi Douglas,

Yes, the FRDM-KL25Z is a common board available from a few places.


01 Mar 2013

i got one today from RS and looking forward to the exercises ,that will all work ,unlike the hassles with arduino and PIC . long may they prosper . if it works out OK i will get the NXP board and motherboard as well .

01 Mar 2013

I was planning to get one of these boards. However, the deal with Farnell is not very attractive to me. When I try to get one from Farnell in the UK the minimum order sale is 20 pounds plus shipping. When I try to order with Farnell in the Netherlands they dont seem interested at all in doing business with non-corporate customers: the minimum order is 50 Euros (plus VAT, plus shipping, plus some other conditions)!

Mouser: 9.90 Euros, Shipping 20 Euros..

Ebay: 19 Euros, free shipping from China.

RS: 22,63 Euros (incl VAT and shipping)

01 Mar 2013

USA Ordered FRDM-KL25Z @

Product Search: FRDM-KL25Z

02 Mar 2013

try RS in the UK .. i walked in and paid cash at the trade counter .

05 Mar 2013

For those of us in North America - Canada - Digikey has these boards too!

05 Mar 2013

[quote] Mouser: 9.90 Euros, Shipping 20 Euros.. Ebay: 19 Euros, free shipping from China. RS: 22,63 Euros (incl VAT and shipping) [/quote]

Pre-order @ (

Price: 15€ + Shipping (3.50€ Europe, 5€ América, África and Ásia, 6€ Oceania)

06 Mar 2013

For the few dollars less than Our Legendary mbed.. Hmmm....

Looks like I'll -not- Sacrifice the Original mbed Horse Power (Extra MIPS) for that one.. !

However.. Keep up the Amazing Work.. !

PS. Sometimes, I can't help it and get to use arduino.. -Unfortunately.. !!

10 Mar 2013


Just bought 2 pcs of FRDM-KL25Z from Farnel UK (and one plastic box to fill that requirement of minimum 20£ order). Anyhow now the question, in the getting started with mbed instructions is said: "All mbed hardware appears as USB mass storage device. To start, simply plug it in, open the MBED.HTM file on the drive that appears and you’ll be able to register on the site." but in my case the MBED.HTM file is missing from the hardware. In this case how to get started ? No matter if i boot it to BOOTLOADER or to FRDM-KL25Z mode (This does not boot as 'MBED' as described on the getting started instructions).

I did also made an upgrade using the file mbed_if_v2.0_frdm_kl25z.s19 and it was succeeded as i can see 'Ready' after booting to FRDM-KL25Z mode

Br Vesku

10 Mar 2013

Hi Vesa,

Did you follow these instructions to upgrade your FRDM-KL25Z? You have to enter in BOOTLOADER mode and then drag n drop the mbed_if_v2.0_frdm_kl25z.s19 file. When you then unplug/plug the board again, the board should appear as MBED.

Cheers, Sam

12 Mar 2013

How to upgrade this one in ubuntu ? All instruction not working in Winsows and ubuntu !!!!!

12 Mar 2013

Hello again,

I made a retry to update the firmware and now it appparently appear as a 'MBED' after USB re-plugging, great. Previously it was functional all the way but it just did not appear as 'MBED' and therefore I did not make any further trials of mbed. (I was able to build, flash and incircuit debug software using IAR IDE).

Roman: I assume there is no matter if using Ubuntu or Windows, if we are talking about the firmware update using mbed_if_v2.0_frdm_kl25z.s19. There is just need to see a USB MMC device in file system on any computer/operating system. Anyhow good luck :)

Br Vesku

14 Mar 2013

Hi guys This board is exceptional, runs all my existing LPC1768 code without trouble even though half the CPU speed.

A little concerned with the production life of the Mbed LPC1768, hope this continues against the competition of this board.

I have one question that I have asked in another thread today.

I also bought the FRDM-KL05Z

simply because of the low CPU pin count. Ideal for building into projects after prototyping as it will be easier to solder to a PCB similar to the Atmega 32 pin CPU.

I have loaded the Mbed firmware and it does flash the green led if I load an Mbed Bin file, but it does not work. It uses the same core M0+ CPU.

Any ideas if it can be used with Mbed? the CPU only cost £1.19 +vat and would be ideal for use after prototyping. Products

20 Mar 2013

I am trying to use the mbed-rtos library on the FRDM-KL25Z, it seems that the mbed-rtos library isn't support this target board yet, right?

31 Mar 2013

This is very great news! I always wanted to try mbed but the financial investment is too great with the original one.. this Freedom board will be a good stepping stone to try out the mbed platform. If this works well then there will be less hesitation in buying the real mbed.

I understand that there are already alot of library for mbed developers. Are there any getting started examples for this Freedom board? E.g. making use of the LED, accelerometer, and capacitive sensor already on the board? This will be a great introduction to newbie like me to jump into the exciting mbed world. Thanks in advance.

31 Mar 2013
31 Mar 2013

Thank you Erik!

Now I'm waiting for the approval seal from the Accounting Department ;)

24 Apr 2013

Snaku Lee wrote:

I am trying to use the mbed-rtos library on the FRDM-KL25Z, it seems that the mbed-rtos library isn't support this target board yet, right?

We added RTOS support for the KL25Z in Rev 10.

Cheers, Emilio

13 May 2013

I am a mac user and bought 2 of the FRDM-KL25Z boards. I thought it would be easy as I have used the MBED board for a lot of projects with success! As I am retiring and no longer have access to Windows XP PC I am stuck with no resolve in using the new boards. I tried to get the Bootloader to work in my Windows but the device drivers etc. won't recognize the device without errors. Totally frustrated and had to let some know that.


05 Jun 2013


Ordered one today

I paid approximately $ 36.00 (with shipping)

Just wondering if it comes with headers double row ... Anyone knows!

Thank you!

24 Jul 2013

Exelente!! =D

07 May 2014

One suggestion to Freescale, the USB connectors should have some kind of mechanical latch to the PSB. One of the onboard USB connector in my KL25Z just came out.

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