Modulus is a robot designed for adaptation to the widest possible range of applications with its modular Techno-Cake system, robot parts and accessories. Modularity, hence its name, is one of its principal characteristics. Available in three configurations - Base, Service & Security, and Moddy. Moddy is the third and most advanced version of the robot. It is obtained by adding a torso, two arms, and a head onto the Techno-Cake and Base. Its Techno-Cake is fitted with a phonemes synthesizer, speech recognition, infra-red communication, memory expansion, and a home security module that allows the robot to signal the presence of smoke, gas, and intruders. At the first sign of danger, it can inform a computer or trigger a siren or preset vocal message with the phonemes synthesizer module. Two arms with ample freedom of movement and considerable gripping power can be used to carry trays or other items. Its head and big eyes makes it a really human character, reliable, and a companion to play with.