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How to Make a Simple Counter of a Calculator

Published 14.11.2010 Presenter Philipp Bolgov

How to Make a Simple Counter of a Calculator
We often need a counter, for instance, to calculate the number of turns or hits. However, we don't always have one at hand. But there is always a way out. You can make a counter out of a calculator. In fact, it is quite easy. Let’s take a calculator and disassemble it. We remove the screws. Then we need to access the pads under the keys ...