This tutorial will show you an astounding “Flashing LED” DIY project which you can use for home beautifications, event decorations, and some more energizing occasions. This project gives fast to slow rehashing LED blazing effects.
In this project, we are utilizing a combination of two NE555 ICs. The circuit flashes 9 LEDs from fast to slow pace. The flashing pace of the LEDs will consistently change their rates from fast to slow and slow to fast. In order to increase the number of these LEDs, a transistor can deploy at the output of the IC2.
The circuit has a wide range of employments for instance you can likewise interface a relay switch or a buzzer in the spot of these LEDs and their 82 ohms current constraining resistors. The working voltage of the circuit is 9V to 12V DC.
Hardware Components
The following components are required to make Flashing LED Circuit
| S.no | Component | Value | Qty |
|---|---|---|---|
| 1. | IC | NE555 timer | 2 |
| 2. | Transistor | 2N3904, 2N3906 | 1, 1 |
| 3. | LEDs | – | 9 |
| 4. | Resistor | 10k, 6.2k, 1k, 10M, 3.6M, 82Ω | 3, 1, 1, 1, 1, 3 |
| 5. | Variable resistor | 100k | 1 |
| 6. | Electrolytic Capacitor | 10µF, 1µF, 0.01µF | 1, 1, 1 |
| 7. | Ceramic Capacitor | 10nF, 0.01uF | 1, 1 |
NE555 Pinout
For a detailed description of pinout, dimension features, and specifications download the datasheet of NE555
Flashing LED Circuit
Working Explanation
The circuit is separated into two sections or segments according to working conditions, both the NE555 ICs are working as an Astable Multivibrator in the circuit. By considering the primary portion of the circuit, the IC1 is charging the 10µF, 10nF, and 1µF capacitors through the 2N3904 transistor. The charging cycle of these capacitors can change with the 100K variable resistor. At the point when the 1uF capacitor becomes charged, it actuates the 2N3906 bipolar PNP transistor for a few moments, and afterward, the transistor gradually gets off. Because of this, the flashing speed of the LEDs will likewise get slower in a couple of moments or seconds and again gets quick. The cycle rehashes and gives these LEDs rehashed and gives repeated fast to slow and slow to fast flashing effect.
Applications and Uses
- Flashing LED lights are an eye-catching way to add excitement to every event or celebration like birthday parties, anniversaries, and other friends or family gatherings.
- They are available in a choice of various color combinations and with varying battery quantities.
- These amazing LED flashing lights are also used in home decorations.
