Introduction: Three Ways to Make LED Flasher Circuit With Rate Control and Alternate Flashing
Flasher Circuit is a circuit in which the LED blinks ON and OFF at a rate influenced by the capacitor used.
Here, I will show you three different ways to make this circuit using:
2. 555 Timer IC
3. Quartz Circuit
LDR can also be used to control flashing speed.
Two LEDs can be used to achieve alternate flashing.
Step 1: Components Required
These are the Components Required for making the circuit:
1. Using Transistors (0:21)
• Transistors: BC 547 (2)
• Resistors: 47 K Ω (2), 330 Ω(2)
• Capacitor: 10 μF (2)
• LEDs (2)
2. Using 555 Timer IC (1:51)
• 555 Timer IC
• Resistors: 10K, 1K, 330Ω
• Capacitor: 100 μF
3. Using Quartz Circuit (3:43)
• Quartz Circuit [from wall clock mechanism]
Other Requirements :
• Battery: 9V and battery clip
• Breadboard Connectors
Step 2: Circuit Diagrams
These are the Circuit Diagrams for making the circuit using :
- 555 Timer IC
- Quartz Circuit
Step 3: Step-by-Step Tutorial
This video shows step-by-step, how to build all these circuits.