Interfacing seven segment to microcontroller


Posted on Jan 13, 2013

The Tutorial shows how to interface 7-segment display to a microcontroller. Also explains how do display more than one 7-segment on same data lines using scanning method. 7 Seg displays are are basically 7 LED's. It will be much easier to understand if you first read Interfacing LED's to Microcontroller.


Interfacing seven segment to microcontroller
Click here to download the full size of the above Circuit.

Figure 1 shows how to interface 7-seg display to a microcontroller. Now we create a lookup table containing the seven segment pattern to display the corresponding hex digits. e.g. consider we have to display '1' from the above figure we come to know tha





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