This article is the example to how to implement MQTT by using the compiler, named Swordfish. In case of user who is using PIC, he can follow up this example easily by programming with BASIC language in Swordfish enviroment.
This explains how to use the Arduino Ethernet Shield with AMICUS18 Open source hardware board based on PIC MCU and how to develop with CrownHill’s Proton BASIC.
Matrixtsl makes the E-block board series with many kind MCU such as PIC, AVR and ARM and provides them. One of them is Eblock internet board which provides the internect connectivity with W5100 and WizFi610 of WIZnet Products.