The circuit diagram of 7 segment counter circuit has been published here. This circuit consists of counter IC CD 4033 as its central part, timer IC NE 555 and 7 segment display LT 543. In this circuit, the timer IC NE 555 acts as astable multivubrator circuit to produce square wave pulse output. This pulse output is used to trigger the counter IC CD 4033. The count of counter increases by one for each pulse. The counter output is displayed through the seven segment LED display LT543.
- Use a good quality PCB to assemble this circuit.
- This circuit can be used in conjunction with various circuits where a counter to display the progress gives more attraction.
- Switch S1 is used to initiate the counting.
- Diode D1 prevents the risk of accidental polarity reversal.