A fan-shaped electronic clock designed by IT experts – a combination of clock and fan

This is quite amazing; I really want to know the principle behind it........

Let’s sit on the benches together and wait!

Explain it using just a little knowledge of microcontrollers. . . I’m not sure if it’s correct. . It primarily makes use of the principle of visual retention, which is the same principle behind the dynamic display of digital tubes in microcontrollers. . . First, it is necessary to know the rotational speed so that the period T can be calculated. Then, after displaying 0.01 seconds for each point, an interval of one period T passes, after which another 0.01 second is displayed (0.01 might be a bit long or a bit short). . ), this allows for static display during rotation. In the dynamic case, the second hand needs to move 6 degrees per second; based on the speed of rotation, it is possible to determine the time elapsed in that second. After the pointer shows 0.01 seconds at a certain moment, there is an interval of (T+t1) before it shows another 0.01 seconds, followed by an interval of T before showing yet another 0.01 second, and this cycle continues until 1 second has passed, after which there is again an interval of (T+t1) for a 0.01-second display, followed by an interval of T, and so on until 1 second is up. . And so on in a cycle. . This achieves a dynamic display of the second hand moving. . The same principle applies to the movement of the minute hand and the hour hand. . The main hardware required is a row of LED display lights. . . And the corresponding microcontroller motherboard. . . Mm-hm. . .

Why can’t I rate the digital version? :o @zhangqi1234