Blogging & Tech tipps

7-segment LED display are the widely used displays in many applications that can display any character or digital value. We have already discussed the 7-segment concept in our previous post which defines it as the combination of 8 LEDs forming "8" display and divided as the common cathode and common anode. Now, learn the concept of multiplexing by which you can connect many 7-segment displays to a single port of 8051 microcontroller. Earlier we discussed about the 7-segment up counter display in which 3 7-segments are connected to 3 different ports and up counter is running from 0-999. But, it had limitation. You can not connect many 7-segments to a single port. Multiplexing of 7-segment: - In the above diagram you can see how i have connected the 4 7-segment display to the port P2 of 8051 microcontroller. It is a schematic diagram which i have drawn in Proteus ISIS professional. But, in practical you can implement the same concept. Use 8 pins of any ...