Introduction
In this era, we need counters in every digital device. Digital watches, calculators, digital timers, digital meters, and any other device that illustrates numerical data must have their counters. Seven segment counter circuit is an electronic device that counts and shows numerical digits. General numbers from 0 to 9 are most commonly displayed on the Simple Counter.
This circuit mainly uses the seven-segment display which is also known as a seven-segment indicator and has seven LEDs. Each of the LEDs is called a segment and each segment is denoted by the letters from A to G. The 555 timer IC used in this circuit works as a monostable multivibrator and generates a
Hardware Required
| S.no | Component | Value | Qty |
|---|---|---|---|
| 1. | IC | NE555 Timer | 1 |
| 2. | IC | 4026 | 1 |
| 3. | Seven Segment LED Display | – | 1 |
| 4. | Push-Button Switch | – | 2 |
| 5. | Capacitor | 1μF, 22μF | 1, 1 |
| 6. | Resistor | 10KΩ, 68KΩ | 3, 1 |
| 7. | Battery | 9V | 1 |
| 8. | 2-Pin Connector | – | 2 |
Circuit Diagram
Working Explanation
In this Simple Circuit, the IC 555 is wired as a monostable multivibrator that triggers the IC CD4026when the clock input is given to pin 1. When the push button is pressed trigger pin gives the negative input Depending on the timings of the capacitor and resistor 555 timers produce the pulse. The pulse is given to the IC2 (4026) through the input clock pin. At each pulse, it increases the count value and gives it to the output which is connected with the seven-segment display.
The count value can be reset by pushing the push button.
Application and Uses
- Digital clocks.
- Digital calculators.
- Digital stopwatches.
