There are so many different mosquito repellent solutions like coils, liquid vaporizers, and creams, all have possible adverse effects on health. Then there are electronic mosquito repellents available in the market which are equally efficient and relatively safer.
The concepts of these mosquito repellers are simple and we can build a simple electronic mosquito repellent circuit at home easily by using 555 timer IC and a few other commonly available components. Let’s see the concept of a mosquito repellent circuit with the help of a video in detail
Hardware Components
The following components are required to make Electronic Mosquito Repellent Circuit
| S. NO | Components | Value | Qty |
|---|---|---|---|
| 1. | Breadboard | – | 1 |
| 2. | Battery | 9v | 1 |
| 3. | Connecting Wires | – | 1 |
| 4. | IC | NE555 Timer | 1 |
| 5. | Piezo Buzzer | – | 1 |
| 6. | Variable Resistor | 10K | 1 |
| 7. | Resistor | 1K | 1 |
| 8. | Ceramic Capacitor | 0.1uF | 1 |
NE555 Pinout
For a detailed description of pinout, dimension features, and specifications download the datasheet of 555 Timer
Electronic Mosquito Repellent Circuit
Useful Steps
Follow all steps carefully from the video tutorial at the end of this post (Highly Recommended).
Useful Steps
1) Make power connections from pins 4 & 8 to Vcc, pin 1 & GND.
2) Connect the piezo buzzer between the output pin 3 of the IC & the GND of the circuit.
3) Connect a 0.1uF capacitor between pin 2 of the IC & the GND of the circuit.
4) Connect the 1K resistor between pin 7 & pin 8 of the IC.
5) Connect the 10K pot between pin 7 & pin 6 of the IC.
6) Power up the circuit. Set the multivibrator oscillation frequency over 20KHz through the 10K preset pot with help of an oscilloscope.
Nice cool project what is the frequency for repelling mosquitoes