To begin with, we call this circuit an Electronic Game Scorer Circuit because it uses a 555 timer IC, a 74LS192 counter, a 74LS247 decoder, and a 7-segment display.
When player presses the button the circuit counts the score and each press increases the number on display, so it is easy to keep score in game without writing.
Circuit Working:
Parts List:
| Components | Values | Quantity |
|---|---|---|
| Resistors (All resistors are 1/4 watt unless specified) | 100k | 1 |
| 10k | 1 | |
| 1k | 1 | |
| 560Ω | 2 | |
| Capacitors | Ceramic 0.01µF | 1 |
| Ceramic 2.2µF | 1 | |
| Semiconductors | IC 555 | 1 |
| IC 74LS192 | 1 | |
| IC 74LS247 | 1 | |
| Switches Push button | 4 | |
| Display Seven-Segment LED Common anode type | 1 |
This is simple scoring game circuit is useful like dice, as it uses IC555 timer, IC 74LS192 counter, IC 74LS247 decoder and 7-segment display.
First, IC 555 generates clock pulses and R1 and C2 show their speed.
Furthermore, when we press S2 the counter goes up and when we press S3 the counter goes down., then IC3 decoder shows number on display.
How to play:
Switch ON power and press S1 to reset.
Press S2 or S3 and release and the counter will stop at a number and then press S4 the number will shows on display and that will be our score.
Next player will also repeat the same, so always press S1 before new person tries and then press S2 or S3, then press S4 to see score.
Also, circuit works with 9V battery or DC supply and it is simple counter circuit which is good for beginners and is easy to make.
How to Build:
To build a Electronic Game Scorer Circuit follow the below mentioned steps:
Connection of IC1:
- First, gather all parts as shown in circuit diagram
- Next, pin 1 of IC1 goes to GND
- After that, pin 2 of IC1 goes to pin 6 of IC1, then R1 connects between pin 6 and pin 7 of IC1 and R2 connects from pin 7 to +5V positive
- Then pin 3 of IC1 connects between switch S2 and S3
- Now pin 4 and pin 8 of IC1 connects to +5V
- Also, pin 5 of IC1 goes to GND through C1 capacitor, then switch S1 + 1k resistor connects between +5V and GND
- Pins 1, 8, 9, 10, 15 of IC2 goes to GND
Connection of IC2:
- Now pin 3 of IC2 goes to pin 7 of IC3
- Then pin 4 of IC2 goes to one side of switch S3 and then to S2 and also pin 5 of IC2 connects to one side of S2 and then to S3
- After that, R4 goes between pin 4 of IC2 and +5 and also R5 connects between pin 5 of IC2 and +5V
- Next, pin 2 of IC2 connects to pin 1 of IC3
- Also, pin 6 of IC2 goes to pin 2 of IC3 and pin 7 of IC2 connects to pin 6 of IC3
- Then pin 16 and pin 11 of IC2 connects to +5V
- Further, pin 14 of IC2 goes between S1 and R3 resistor
- Finally, pin 8 of IC3 connects to GND and pin 16 of IC3 connects to +5V
IC3 pins to Display:
- Pin 13 connects to display (a)
- Pin 12 connects to display (b)
- Pin 11 connects to display (c)
- Pin 10 connects to display (d)
- Pin 9 connects to display (e)
- Pin 15 connects to display (f)
- Pin 14 connects to display (g)
- Switch S4 connect to 9V DC to turn ON/OFF
Conclusion:
To conclude, this Electronic Game Scorer Circuit is a fun project for beginners and users can replace dice with it or use it for small recreational games.
Furthermore, it works with 9V battery or 9V DC supply and this circuit is also an easy project for students and beginners.