Octoglass chemists and engineers conducted hundreds of experiments involved dozens of pieces of equipment and devoted several months to building a model of electrochromic devices. Now, thanks to simulation we can simulate various states occurring in an electrochromic device, and analyze the processes that occur there with the accuracy available to the mathematical apparatus used. And as a result of the work done we have developed controllers that allow you to quickly and safely control our glasses with electrochromic tinting. Controllers KDS-2, KDS-2 Mini and KDS-2 nano were designed in such a way that they can be installed in hard-to-reach places.