Introduction
In electronic devices, LEDs are usually used for indication purposes. Yet, there are also some of the major projects that are totally based on LEDs. For example, the flasher circuits or the flashing lights units of the LEDs. These sorts of circuits are generally used as art and for decoration purposes.
For instance, they get utilized to enrich the homes at weddings, birthday parties, etc, the flasher circuit plays an artistic role. Moreover, you may also observe these kinds of circuits in police mobiles and ambulances to alert the people around. Because of so many good reasons, in this tutorial, we are going to Make an “LED Flasher Circuit with Relay”
Hardware Components
The following components are required to make LED Flasher Circuit
BC547 Pinout
For a detailed description of pinout, dimension features, and specifications download the datasheet of BC547
LED Flasher Circuit
Working Explanation
The LED Flasher circuit uses the relay and BC547 transistor. When you connect the circuit according to the diagram given above and apply the 3V power supply to it, the multicolor LED which is connected with the base of the transistor triggers the transistor, the transistor turns on the relay. Two LEDs are connected with the relay, one with the normally open terminal and another with the normally closed terminal. So, in either of the condition, one of the LEDs glows, which makes the flasher circuit work.
Application and Uses
- In the circuits of vehicle indicators.
- In the making of LED blinking circuits.
- As a signal flashlight.
- Also, used for decoration purposes.
