The following video shows MQTT in action on FRDM-K64F and FRDM-K66F boards:
The uTasker MQTT User's Manual can be found here:
and binary files for experimenting with live MQTT on FRDM-K66F and FRDM-K64F boards can be found at
This turn-key solution means that there is no excuse for not making most of IoT cloud technology with Ethernet based devices. The MQTT service is being added to the Open Source version of the uTasker project and fully supported turn-key secure socket version (TLS1.2) is available for professional requirements. Video showing highly secure client side authentication with Amazon AWS to follow.
Just ask if you would like to see it on other boards since it works on any Kinetis Ethernet (or USB-RNDIS) enabled device and can be built with almost any IDE so environment constraints and porting nightmares are a thing of the past ;-)