I am totally new to robotics and I need some helpful advice for the project I'm working on. It is a very simple robotic arm with 2degrees of freedom powered by two motors. I want it to execute a very simple sequence of about four steps, activated by the push of a button. What is the best type of kit or system to use? I am thinking about using a basic stamp, but I really have no preference. My budget is no more than $500. Also, I mentioned that input would come by a button, but I would like to try and have it be voice-activated. The only way I think I could do this is by having a simple software program that is voice-activated which would control this robotic arm. Is it very complicated to have all input for control be activated by software?