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4*4 matrix keypad and its pin outs.

4*4 matrix keypad and its pin outs.

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Election is a key issue when it comes to deciding who the next leader(s) or representative(s) are going to be through democratic means. The existing prevalent processes of voting in these elections are slow and strenuous and the outcome is often inaccurate. Thus, people lose faith in the electoral process and consequently in their leaders as well....

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... stage was the second authentication method. The PIN layout and connection of the 4*4 matrix keypad is shown in Figure 5. ...

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