I guess it depends, the existing boards have a large online community and vast numbers of code available, along with tutorials (one linked to previously, which pretty much does what you want). microBus seems like overkill to me, what's wrong with just using wires? Considering how few things you'll actually need to hook up to this to achieve your goal. To name but a few:

• http://www.esp8266.com/
• http://esp8266.net/
• https://hackaday.com/?s=esp8266

I do think that your comment makes much sense.

With that my feedback I've just wanted to let you know about their explanation. Personally I am not familiar with all that, without any experience and I lack bigger picture

Thanks for the links, I will look at these.

Sure, thanks for the reply. Whatever you end up doing it's your project, your money and your time, there's sometimes a trade off between time & money when it comes to these things. When getting into electronics/hardware it's wise to spend as much time as you can afford on research and planning before you decide to invest in the products.