The LED blinking circuit subsequently resembles the electronic version of the program “Hello World.” However, it is a primary electronic circuit that utilizes to blink the LED, i.e., On or OFF. It’s a straightforward electronic circuit that likewise gives you a visual prompt when it works. So, I am explaining this circuit with great enthusiasm today. Because it was the first electronic circuit I ever fabricated, and it felt GREAT!
Therefore, the following description is for a simple electronic circuit, which is not much challenging to fabricate. However, it is a perfect gadget for parties and special gatherings. Hence, the Light Emitting Diode (LED) given in this circuit goes ON/OFF persistently and gives attractive glimmering impacts. You can likewise utilize numerous neon bulbs and fix them wherever you need to get extraordinary-looking flickering impressions. The oscillator produces a current that changes at least multiple times rapidly in a wavering cycle.
Hardware Component
The following components are required to make LED Blinker Circuit
| S.no | Component | Value | Qty |
|---|---|---|---|
| 1. | LED | – | 1 |
| 2. | Transistor | BC557, BC547 | 1, 1 |
| 3. | Ceramic Capacitor | 50uF | 1 |
| 4. | Resistor | 470K, 220ohms | 1, 1 |
| 5. | Battery | 9V | 1 |
BC547 Pinout
For a detailed description of pinout, dimension features, and specifications download the datasheet of BC547
BC557 Pinout
For a detailed description of pinout, dimension features, and specifications download the datasheet of BC557
LED Blinker Circuit
Working Explanation
Accordingly, this simple LED blinking circuit works at a relaxation oscillator principle. However, Semiconductor 1 is BC 477, and semiconductor 2 is BC 547. The oscillator likewise covers an immense scope of frequencies. Meanwhile, the circuit is modest and very easy to build. Hence, care must be taken that the current does not go over the LED-appraised current. Therefore, if the current goes over the LED evaluated current, at that point, utilize 220 ohms LED current resistor in arrangement with LED to control or cut off the LED current.
Applications and Uses
- This LED blinking circuit utilizes for any visual sign on any roadways.
- It very well may be utilized in advertisement hoarding.
- It can likewise be utilized in generating light signals (It can be used as a sign for an emergency if you are at serious risk)
