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What Is Dot Matrix Display:

A dot-matrix display is an electronic digital display device that displays information on machines, clocks and watches, public transport departure indicators and many other devices requiring a simple alphanumeric display device of limited resolution.

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Fig. 1: 24x6 Dot Matrix Notice Board Arrangement 

Circuit Simulation:

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Fig. 2: Row Driver.

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Fig. 3: Colum Driver.

Circuit PCB :

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Fig. 4: Bottom Side.

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Fig. 5: Top View.

Hardware Implementation : 

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Fig. 6: Copper Extraction Without Net Line in FeCl3 Solution .

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Fig. 7: Copper Net Line .

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Here you can find the code

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