Up Counter
An up counter simply counts from 0 to 9. We can use this circuit to make digital object counter. This circuit can also be used to make a digital clock.
We need following components for making an up counter.
- 555- configured in astable mode
- 7490- decade counter- Click here to get the datasheet
- 7447- BCD to seven segment display- Click here to get the datasheet.
- Seven segment display- Common Anode
Here, CC-Common Cathode and CA-Common Anode.
6. Resistors- see the schematic
7. Capacitor- see the schematic
8. LED
9. Power supply
