Quantity   Component name
4 × 4026 IC 4026 IC Counter Circuit. The 4026 is a decade counter integrated circuit (IC) with decoded outputs for driving a common-cathode seven-segment LED display. An advantage of this IC is that it has decade counter functionality together with 7-segment decoder driver.
1 × 555 TIMER IC Timer ic as astable
1 × 9V Battery
2 × 10k resistor
1 × 1k resistor
4 × 7 segment display
1 × 100k Potentiometer
4 × 16 pin holder
1 × 8 pin holder
1 × 10uF Capacitor
1 × 5V regulator