I'm kind of new to all this stuff and I'll be glad if you help me. I'm a senior electronics engineer student and my final project is about making "a light tracking vehicle". I decided to use an Arduino UNO for this project. There will be panel on the Rover 5 which can rotate in x- & y- axes. The panel should face to the light source and the mission of the vehicle is bring closer the panel to the light source. After reaching a determined voltage level, the vehicle'll stop. That's it.
Panel would have 4 light sensors on all 4 sides of it and with the help of voltage difference it will position it self to the light source (first it will look at the diffrence on the sensors which are on the horizontal line, the servo will turn to direction of the lowe leveled sensors until both sensors have no diffrence. This procedure is same for the ones on the vertical line.).
While searching for the "vehicle" part of my project, I come up with this Dagu Rover 5 and liked it very much. However I'not sure which model should I buy? I found 4 motored and 2 motored ones; I don't know which one is enough (If you ask me I would choose 2 motored) ? (I found 2 models of Rover 5 on hobbyking.com; one has 2 motor and 2 encoders and the other one has 2 motors and no encoders) And which kind of motors are they? Servo or DC motor? Also I don't any idea about that encoder stuff. What does it for? Is is useful or necessary for me? (I might have forgotten to tell you everything about my project, if I did please say and I'll explain)
Thanks in advance,
Ali Sercan KARTAL