6-digit 7 segment 5 displays interface with 8051

Rk_on_edaboard · Oct 9, 2014

I want to interface five 7segment displays with 8051
each display is of 6 digit.
It is possible using only one 8051 ? if yes then how?

Total 30 digits to interface or glow using one microcontroller 8051.

amayilsamy · Oct 9, 2014

8051 is not enough for your application, Because it's less port pins.

You need minimum 38 pins, 8051 have 32 I/O lines.

So you go with some other controllers.

https://www.electroons.com/8051/electroons/seven_segment.html

Refer the given. How to interface the 7-segment with micro controller

Venkadesh_M · Oct 9, 2014

It can be also done with external demux or decoder of 1:32 and with 13pins of 8051. but the refreshing rate will be poor.
you can do in 24 pin mode with two 1:16 line decoders.

If you feel more comfortable with the 8051, you can use it. also if you take any controller you will do in the same way.

amayilsamy · Oct 9, 2014

Yes, I Agree with Venkadesh..

6-digit 7 segment 5 displays interface with 8051

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6-digit 7 segment 5 displays interface with 8051

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