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Wednesday, 17 September 2014

Convert Segments of a Cluster of 8 Common Cathode SSDs to 8*8 LED Matrix (Part 2)

by realfinetime  |  in Seven Segment Display at  09:33

<<<< Read Previous Page (Part 1)

          Circuit drawn in the previous page can be redrawn as an 8*8 LED matrix as shown below. LED matrix arrangement of seven segment display will help to control the displays easily.



          Each rectangular box represents one common cathode seven segment display. From the circuit, it is clear that, each rectangular box has eight anode terminals (a, b, c, d, e, f, g and dp) and one cathode terminal.

          "a" terminal of all the seven segment displays are interconnected to form a common "a" terminal. Similarly, "b" terminal of all the seven segment displays are interconnected to form a common "b" terminal. Same connections are repeating for c, d, e, f, g and dp terminals. One cathode terminal is common to all the anode terminals of corresponding seven segment display. This will look like an 8*8 LED matrix and controlling can be done in the same way in which 8*8 LED matrix is controlled.

Next : Control Segments of 8 Seven Segment Displays using Arduino and 74595 >>>>

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All the circuits, published in this blog is only after testing and getting proper results in my private lab. When you try these circuits, you should check the supply voltage, polarity of components, presence of childrens nearby and shorts in the circuits. This website will not be responsible for any harm happened to you or your components caused by your carelessness.

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