The microcontroller is most flexible electronic device more likely a processor which can be programmed and setup compactly to control any kind of system.System can be a physical area with wide number of devices installed to a small electronic system having a small display,keypad.
7segment display consists of 8 LEDs embedded into a cuboid.These LEDs are either common anode or common cathode in nature.In common cathode,the respective pin needs high on it to turn it ON.Whereas in common anode the low on the pin turns the respective LED segment ON.
Now the interface of a 7segment LED display to a microcontroller is as shown in figure 2.
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Here is the video showing the working of microcontroller displaying 0,1,2,3,4,5,6,7,8,9,S,h,r,e,e,S,h continuously..
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