LED matrix with MAX7219 are very versatile and can be used in several projects with Arduino.In this case, I used it to simulate an analog clock without its hands with very interesting results.The hours and minutes are placed around the center of matrix giving a familiar look of analogs clocks.The code I have developed applies a little of trigonometry (sine and cosine) to calculate the coordinates of hours and minutes to be shown into LED matrix.With that I saved many lines of coding.The assembly is very simple using few components and you will have no problems to work on it.Let’s do it !!”