Functioning:
Once the date, time and location coordinates are entered into the screen, with the buttons, the sun tracker is set.
Form this moment on, the tracker is working. Each X amount of minutes (between 1 and 90, according to what has been programmed), it calculates the position and moves the tracker if necessary.
At the moment that the sun sets, in other words, when the inclination of the sun over the horizon is negative, the tracker returns to the east and sets near the horizon again (some 80 degrees regarding the vertical).
At the time that the sun comes up, the tracker goes back to an almost vertical position. From this moment on it carries out its normal daily movement.