How to Make LED Flasher using 555 Timer

A 555 timer is a popular integrated circuit that can be used to create a variety of electronic circuits. Here’s a simple 555 timer based project that you can try:

Components needed:

• 555 timer IC
• 2 x 10kΩ resistors
• 1 x 100kΩ resistor
• 2 x 0.01uF capacitors
• 1 x 10uF capacitor
• 2 x LEDs
• Breadboard
• Jumper wires
• 9V battery and connector

Instructions:

1. Insert the 555 timer IC into the breadboard.
2. Connect a 10kΩ resistor from Pin 7 (discharge) to Pin 6 (threshold).
3. Connect a 100kΩ resistor from Pin 6 (threshold) to Pin 2 (trigger).
4. Connect a 10uF capacitor from Pin 2 (trigger) to ground.
5. Connect a 0.01uF capacitor from Pin 5 (control) to ground.
6. Connect a 10kΩ resistor from Pin 5 (control) to Vcc (positive rail).
7. Connect the positive leg of the first LED to Pin 3 (output) through a 220Ω resistor, and connect the negative leg of the LED to ground.
8. Connect the positive leg of the second LED to Pin 3 (output) through a 220Ω resistor, and connect the negative leg of the LED to ground.
9. Connect a 0.01uF capacitor from Vcc to ground.
10. Connect a 9V battery to the breadboard and connect the positive and negative leads to Vcc and ground, respectively.

Once the circuit is complete, the LEDs will flash on and off at a regular interval, determined by the values of the resistors and capacitors used. You can experiment with different values to adjust the frequency of the flashing.