Introduction
Vehicles make our life easier and so do the devices used in those vehicles. Some of those devices include lights. For example, Headlights, rear lights, sidelights, and direction indicators. A direction indicator is a device fitted on a vehicle or that, when actuated by the driver, communicates the latter’s desire to alter the vehicle’s direction of travel. In this tutorial, we are discussing “Bicycle direction indicator light
A direction indication lamp is used to signal the function of a car system to other road users; in other words, you can say a bicycle using the direction indicator indicates the function of turning to other road vehicle drivers there on the road. Low-cost components are used in the electronic bicycle direction indication device. The circuit is relatively simple to construct and run.
Hardware Components
The following components are required to make Indicator Light Circuit
| S.no | Component | Value | Qty |
|---|---|---|---|
| 1. | IC | NE555 Timer | 1 |
| 2. | NPN Transistor | SL100 | 2 |
| 3. | LED | – | 16 |
| 4. | SPDT Switch | – | 1 |
| 5. | Electrolyte Capacitor | 33µF | 1 |
| 6. | Ceramic Capacitor | 0.1uF | , 1 |
| 7. | Resistor | 100Ω, 10KΩ, 220Ω | 8, 2, 1 |
NE555 IC Pinout
For a detailed description of pinout, dimension features, and specifications download the datasheet of 555 Timer
SL100 Pinout
For a detailed description of pinout, dimension features, and specifications download the datasheet of SL100
Indicator Light Circuit
Working Explanation
In this Bicycle direction indicator light, the Astable multivibrator is created with IC 555 and the output is delivered to a single-pole dual-through switch (SPD), the output is sent to LEDs in this simple and handy bicycle direction indication circuit. As a result, LEDs will glow to show the moving direction. You may modify the speed of light by using variable resistor R2 in this circuit.
Application and Uses
- It has uses in the automotive industry.
- The circuit is used in the bicycles to show a turn.
