How to adapt module from 1.5 to 2.1 opencart?

Question

opencart

Guys, can you tell me the recipe for adapting the opencart 1.5=>2.1 module "Categories of goods on the main" such a trouble, you need a module that would display goods from categories, an example of the category bicycles and the product is displayed from the category bicycles .... can there be such a module for the version 2.x tell me, I didn’t find it, but on 1.5 there is one, but then you need to adapt ... but how xs

Answer 1

Search for modules by Category wall.
Example