Description: It’s a simple counter module. In the example, we have used 4026B and common cathode seven segment display. In place of 4026B, you can also use 7490 and 7447.
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Project 1: Up Counter using astable mode 555 timer
In the following example, we have connected an astable multivibrator to the counter module. The circuit works as an up counter and counts from 0 to 9. Connect Pin 3 of 555 timer to Pin 1 of 4026B.
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