Today electronic sound circuits are very popular among the young generation.
One such circuit which will benefit the beginners in electronic is a Simple Drummer Sound Circuit using IC 555.
This circuit is made using IC 555 timer which is very cheap and easily available.
It is widely used for sound and timing projects, so this project is very useful for beginners.
This circuit is also helpful for musicians who want to practice music with a steady and constant rhythm.
It produces drum like sound through speaker and the sound frequency can be adjusted.
Therefore, this circuit is good for learning audio basics.
Circuit Working:
Parts List:
| Components | Specification | Quantity |
|---|---|---|
| Resistors | 1.2k 1/4 watt | 1 |
| Potentiometer 100k | 1 | |
| Capacitors | Electrolytic C1-C2 10µF 25V, C3-C4 22µF 25V | 2 each |
| Semiconductors | 555 Timer IC | 1 |
| Loud Speaker 8 Ohm | 1 | |
| 9V Power supply / 9V battery | 1 |
First, 9V power supply is given to the circuit and this circuit is built around IC 555.
It is connected in astable mode and this astable mode produces continuous pulses.
These pulses generate sound at output and the frequency depends on resistor and capacitor values.
VR1 is used to adjust the sound tone.
Pin 8 and pin 4 of IC get positive supply and pin 1 is connected to ground.
Then the capacitor C1 and C2 start charging and they charge through resistor R1 and VR1.
When voltage reaches two-third of supply then IC changes the state.
Now capacitor discharges through VR1 and this charging and discharging repeats continuously.
Therefore square wave is generated at pin 3.
Next, output pulses pass through capacitors C3 and C4 and these capacitors block DC component.
But only AC signal goes to the speaker, so speaker produces drum like sound.
By rotating VR1 the frequency changes and hence, different drum sounds are heard.
How to Build:
To build a Simple Drummer Sound Circuit using IC 555 follow the below connection steps:
- First, start gathering all the parts as shown in circuit diagram.
- Then start with IC pin 1 which goes to Ground.
- Pin 2 connect to junction of VR1 and capacitor C1 and C2.
- Pin 3 connects to capacitors C3 and C4 and then connect to one end of speaker.
- And other end of speaker will go the GND.
- Pin 4 connect directly to VCC.
- Pin 6 connect to same point as pin 2.
- Pin 7 connect between R1 and VR1 junction.
- Lastly, pin 8 connect to +9V supply.
Conclusion:
This Simple Drummer Sound Circuit using IC 555 is very useful project.
It helps to understand IC 555 working as it produces adjustable drum sound.
Moreover, it is easy to build and also it is with low cost project.
Therefore beginners can try this circuit.
Finally, this project is good for learning sound generation basics.