Thanks for you reply. Actually I would like to create my own hadrware design. I have posted this question because I realized that the software was working correctly on the simulation while on the hardware I faced with many other issues ( the most due the lack of components or wrong cabling). That's why I tought let's work with a board with a proto-area where I can extend my design and then when the firmare works as expected I would create my own pcb board. Let's assume that my firmware works with the demo board...how do I migrate the project to a new board starting from zero? With the demo board i will also get the orginal schematic circuit? I was thinking to create my project using two pics, one for rs485 (as master handling all slaves data) and another for ethernet (sending data to a remote server) and splt the tasks between them, using a consumer/producer model. Are there any board that fit with my goal? Thanks in advance.