Hi, I am new to this forum. :) I need help for designing a project which title is, "A control system to keep a solar panel pointing towards the sun". It is basically a sensor & microcontroller based project. I have found a related block diagram on the internet which is shown below. The processor is a microcontroller. What is the X and Y position sensor used for? Is it use to move the solar panel vertically and horizontally? For the motor portion, what type of motor should I used? ???